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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 48. Отображено 48.
18-09-2015 дата публикации

Apparatus and method for pulse compression of coded excitation in medical ultrasound imaging

Номер: KR0101550671B1
Автор: 유양모, 이우열, 윤창한, 장진호, 송태경
Принадлежит: 서강대학교산학협력단

... 의료 초음파 영상에서 코드화 여기의 펄스 압축 장치 및 방법에 관한 기술이 개시된다. 의료 초음파 영상의 코드화 여기 방법은, 초음파 신호를 수신하여 RF 데이터를 입력받고, 입력된 RF 데이터에 기초하여 복소수 기저대역(complex baseband) 데이터를 획득하며, 획득된 복소수 기저대역 데이터에 대하여 펄스 압축(pulse compression)을 수행함으로써 시간적으로 긴(elongated) 신호로부터 짧은 신호를 생성한다.

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Номер записи: 1
28-12-2018 дата публикации

METHOD OF GENERATING PLANE WAVE BY USING CONVEX ULTRASONIC PROBE, PLANE WAVE GENERATING DEVICE BY USING METHOD, AND PLANE WAVE GENERATING SYSTEM BY USING METHOD

Номер: KR1020180137933A
Автор: YOO, YANG MO, KANG, JIN BUM, GO, DOO YOUNG
Принадлежит:

Disclosed is a method of generating a plane wave by using a convex ultrasonic probe. According to one embodiment of the present invention, the method comprises: a step of calculating a delay time for an entire transmission direction in accordance with a predetermined method, and storing the calculated delay time in a shift register; a step of reading a first delay time from a part of the registers making up the shift register to generate a plane wave in the first transmission direction; and a step of shifting the delay time stored in the shift register by a predetermined number of times in proportion to a difference in direction angle between the second transmission direction and the first transmission direction to generate the plane wave in the second transmission direction. COPYRIGHT KIPO 2019 ...

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Номер записи: 2
18-10-2017 дата публикации

ULTRASONIC DIAGNOSTIC APPARATUS AND OPERATION METHOD THEREOF

Номер: KR1020170115922A
Автор: LEE, WOO YOUL, YOO, YANG MO, KANG, JIN BUM
Принадлежит:

Disclosed is an ultrasonic diagnostic apparatus comprising: a data acquisition part acquiring ultrasound data based on an echo signal received from an object; and a processor estimating a center frequency of the ultrasound data, and performing pulse compression on the ultrasound data based on the center frequency to generate a short signal from a temporally long signal. Therefore, target position distortion due to a frequency-dependent signal attenuation phenomenon can be compensated, and a signal-to-noise ratio, axial resolution, and contrast can be improved by performing pulse compression based on the estimated center frequency of the ultrasound data. COPYRIGHT KIPO 2017 (110) Data acquisition part (120) Processor ...

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Номер записи: 3
05-02-2016 дата публикации

융합 영상을 획득하는 장치 및 방법

Номер: KR1020160013893A
Автор: 장진호, 송태경, 유양모, 강지운, 윌슨브라이언, 김강, 한승희
Принадлежит:

... 본 발명은 융합 영상을 획득하는 장치 및 방법에 관한 것으로서, 초음파 영상을 위한 초음파 신호, 광음향 영상 및 형광 영상을 위한 광 신호를 대상에 인가하고, 대상으로부터 초음파 신호, 광음향 신호 및 광 신호를 수신하며, 수신된 초음파 신호, 광음향 신호 및 광 신호 중 적어도 둘 이상의 신호를 이용하여 대상에 대한 탐지 면을 달리하는 영상 정보를 포함하는 융합 영상을 생성한다.

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Номер записи: 4
07-02-2013 дата публикации

APPARATUS AND METHOD FOR ADAPTIVE RECEPTION BEAM FOCUSING

Номер: WO2013018964A1
Автор: YOO, Yang Mo, KANG, Jeeun, CHANG, Jin Ho, SONG, Tai-Kyong
Принадлежит:

The present invention relates to an apparatus for adaptive reception beam focusing, comprising: a transducer which receives an ultrasonic wave signal reflected from an image point; a delay offset application unit which calculates a delay time of a received ultrasonic wave signal, and applies a delay offset for each channel of the received ultrasonic wave signal to the received ultrasonic wave signal; a beam synthesis unit which synthesizes the ultrasonic wave signal, which has been compensated for a delay time of each channel; a coefficient calculation unit which divides an aperture into a plurality of sub-apertures, and then calculates an entire coefficient to be applied to the synthesized ultrasonic wave signal using CF coefficients according to the sub-apertures; and a coefficient application unit which applies the calculated entire coefficient to the synthesized ultrasonic wave signal, thereby reducing errors when the existence of an interference point in the vicinity of an image point ...

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Номер записи: 5
23-08-2016 дата публикации

ULTRASONIC IMAGE QUALITY IMPROVING METHOD AND ULTRASONIC IMAGING DEVICE USING SAME

Номер: KR1020160099877A
Автор: YOO, YANG MO, KIM, JEE HOO, KIM, KYU CHEOL, CHANG, JIN HO, SONG, TAI KYONG
Принадлежит:

An ultrasonic image quality improving method is disclosed. The purpose of the present invention is to promote user convenience and improve the accuracy of diagnosis via ultrasonic images by providing a uniform image quality. The image quality improving method comprises the steps of: forming an envelope signal by conducting the envelope detection of an ultrasonic echo signal reflected by an object; dividing the envelope signal into multiple regions and generating a vertical profile for representing the average intensity value of pixels existing at the same depth for each of the divided regions; calculating a cumulative sum depending on the depth of the vertical profile and generating a time gain compensation (TGC) curve by using the cumulative sum; reflecting the TGC curve on the envelope signal; and forming an ultrasonic image based on the envelope signal having the TGC curve reflected thereon. COPYRIGHT KIPO 2016 (120) Transceiving unit (130) Beam formation unit (140) Signal processing ...

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Номер записи: 6
24-08-2018 дата публикации

스펙트럴 도플러 영상을 생성하는 방법 및 그 초음파 도플러 영상 장치

Номер: KR0101882325B1
Автор: 유양모, 강진범, 김예진
Принадлежит: 서강대학교산학협력단

... 초음파 도플러 영상 장치가 스펙트럴 도플러 영상(spectral Doppler image)을 생성하는 방법이 개시된다. 본 방법은 제1 초음파 데이터에 대한 컬러 도플러 프로세싱(color Doppler processing)을 수행하여 컬러 도플러 영상을 생성하는 단계; 컬러 도플러 영상 내에 포함된 복수의 혈관들의 위치 정보를 결정하는 단계; 복수의 혈관들 중에서 하나를 선택하는 사용자 입력을 수신하는 단계; 선택된 혈관 내에서 혈류 속도가 최대인 최대 속도 위치 및 선택된 혈관의 혈관 각도를 결정하는 단계; 최대 속도 위치 및 혈관 각도를 기초로, 대상체로 송신되는 초음파 빔의 각도를 설정하는 단계; 및 초음파 빔이 대상체로 송신됨에 따라 획득되는 제2 초음파 데이터를 이용하여, 선택된 혈관에 대한 스펙트럴 도플러 영상을 생성하는 단계를 포함한다.

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Номер записи: 7
12-10-2017 дата публикации

ULTRASONIC DOPPLER IMAGING APPARATUS USING NEW PLANE WAVE SYNTHESIS, AND CONTROLLING METHOD THEREOF

Номер: KR1020170112004A
Автор: YOO, YANG MO, KANG, JIN BUM
Принадлежит:

A method of controlling an ultrasonic Doppler imaging apparatus according to the present invention comprises the steps of: sequentially and repetitively transmitting a predetermined number of plane waves constituting one set to an object, and receiving an echo signal reflected by the object to obtain an incident frame; generating a predetermined number of ensemble frames by synthesizing a variable number of incident frames at a specific time difference interval among sequential incident frames corresponding to the plane waves; repetitively generating a next ensemble frame subsequent to the ensemble frames; and generating a Doppler image by using the predetermined number of the ensemble frames, and displaying the generated Doppler image. The synthesis of the variable number of the incident frames at the specific time difference interval is determined on the basis of a blood flow velocity to be estimated, and an ultrasonic Doppler image having a high resolution and sensitivity can be obtained ...

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Номер записи: 8
14-11-2013 дата публикации

METHOD FOR DISCRIMINATING BETWEEN BACKGROUND AND TISSUE OF INTEREST, AND METHOD AND APPARATUS FOR GENERATING PHOTOACOUSTIC IMAGES FOR DETECTING CALCIFIED TISSUE

Номер: WO2013168873A1
Автор: CHANG, Jin Ho, KANG, Jeeun, SONG, Tai-Kyong, YOO, Yang Mo
Принадлежит:

The present invention relates to a method for discerning a tissue of interest, and to a method and apparatus for generating an photoacoustic image for detecting calcified tissue, wherein the method includes the steps of: detecting the intensity of each pixel of an image of a tissue of interest which is obtained for each wavelength; setting an index corresponding to the image having the largest intensity to correspond to each pixel; generating a signal weight corresponding to each pixel in consideration of the wavelength absorbed by the tissue of interest; and applying the generated signal weight for each pixel to each pixel of an image obtained using the wavelength most absorbed by the tissue of interest. The indexes are applied to images by analyzing photoacoustic images obtained while changing the optical wavelength. Accordingly, the background signal and the desired signal can be distinguished.

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Номер записи: 9
30-08-2012 дата публикации

BOARD FOR SYNTHETIC APERTURE BEAMFORMING DEVICE

Номер: WO2012115331A1
Автор: YOO, Yang Mo, SONG, Tai-Kyong, CHANG, Jin Ho, CHO, Jeong, PARK, Jong Ho
Принадлежит:

The present invention relates to a board for a synthetic aperture ultrasonic wave image forming device, comprising: an analog-digital converter for converting M number of analog channel data into M number of digital channel data; a partial beam former unit including an N number of partial beam formers forming an N number of partial beams from the M number of digital channel data; and an addition unit for adding and inputting to the (k+1)th synthetic aperture memory, a partial beam stored on the k-th synthetic aperture memory from a plurality of synthetic aperture memories and a partial beam outputted from the (k+1)th partial beam former, and synthesizing through mutual exchange of parts of scan line data between boards at the rear end of the board, enabling easy expansion of the number of channels through additional boards, without transmitting multiple channels between the boards.

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Номер записи: 10
19-02-2019 дата публикации

초음파 의료영상 장치를 이용한 미세석회화 조직 검출 방법 및 그 초음파 의료영상 장치

Номер: KR1020190016816A
Автор: 유양모, 강진범
Принадлежит:

... 초음파 의료영상 장치가 미세석회화 조직을 검출하는 방법이 개시된다. 본 발명은 대상체로부터 초음파 데이터를 실시간으로 획득하는 단계; 실시간 초음파 데이터에 대해 시공간적 위상 변화값을 산출하는 단계; 및 시공간적 위상 변화값의 분산도를 기초로 미세석회화 조직을 검출하는 단계를 포함한다.

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Номер записи: 11
02-08-2012 дата публикации

SYNTHETIC APERTURE BEAM FOCUSING METHOD AND APPARATUS FOR DETERMINING THE NUMBER OF COMPOSITE BEAMS ACCORDING TO A MOVEMENT LEVEL

Номер: WO2012102503A2
Автор: YOO, Yang Mo, SONG, Tai-Kyong, CHANG, Jin Ho, CHO, Jeong, PARK, Jong Ho
Принадлежит:

The present invention relates to an apparatus for determining the number of composite beams comprising: a movement detection unit detecting a movement level from an output beam-forming image; a composite beam number determination unit determining the number of stable composite beams based on the movement level detected when a synthetic aperture method is applied; and a display unit displaying the number of composite beams determined in the composite beam number determination unit. In a system using a synthetic aperture beam focusing method, by displaying the detected movement in the image on a screen using various methods, the number of composite beams can be actively reduced or increased by a user, or can be changed immediately by the system with reference to pre-stored data.

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Номер записи: 12
18-04-2013 дата публикации

METHOD AND DEVICE FOR REMOVING AN HIFU INTERFERENCE SIGNAL

Номер: WO2013055129A3
Автор: CHANG, Jin Ho, SONG, Jae Hee, YOO, Yang Mo, SONG, Tai-Kyong, LEE, Yu Hwa
Принадлежит:

The present invention relates to a method of removing an HIFU interference signal. The method of the present invention is characterized by transmitting ultrasonic image signals while transmitting at least two HIFU signals out of phase, receiving ultrasonic signals including reflected HIFU signals and ultrasonic image signals when at least two HIFU signals and ultrasonic image signals are reflected from an object, summing the received ultrasonic signals, and removing basic frequency components and harmonic frequency components from HIFU signals in the received ultrasonic signals. The method of the present invention may acquire a monitor image from which HIFU interference is removed regardless of an HIFU length because a pulse inversion technique is used.

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Номер записи: 13
05-02-2015 дата публикации

DEVICE AND METHOD FOR ACQUIRING FUSION IMAGE

Номер: WO2015016403A1
Автор: CHANG, Jin Ho, SONG, Tai-Kyong, YOO, Yang Mo, KANG, Jeeun, WILSON, Brian, KIM, Kang, HAN, Seung Hee
Принадлежит:

The present invention relates to a device and a method for acquiring a fusion image, wherein: an ultrasound signal for an ultrasound image and an optical signal for a photoacoustic image and a fluorescent image are applied to an object; an ultrasound signal, a photoacoustic signal and an optical signal are received from the object; and a fusion image including image information having different detection surfaces for the object is generated by using at least two of the received ultrasound signal, photoacoustic signal and optical signal.

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Номер записи: 14
07-08-2015 дата публикации

Image Quality Improving Method and Ultrasonic Imaging Apparatus using the same

Номер: KR0101542807B1
Автор: 유양모, 이연화, 장진호, 송태경
Принадлежит: 서강대학교산학협력단

... 대상체로부터 반사된 초음파 에코신호에 대해 포락선 검파(envelope detection)을 수행하여 포락선 신호(envelope signal)를 형성하는 단계, 상기 포락선 신호를 다수개의 영역으로 분할하고 상기 분할된 영역별로 TGC 커브를 생성하는 단계, 상기 영역별로 생성된 TGC 커브들의 평균을 기초로 최종 TGC 커브를 취득하는 단계, 상기 최종 TGC 커브를 상기 포락선 신호에 반영하는 단계 및 상기 최종 TGC 커브가 반영된 포락선 신호에 기초하여 초음파 영상을 형성하는 단계를 포함하는 초음파 영상의 화질 개선 방법이 제안된다. 본 발명에 따르면 영상의 깊이(depth)별 TGC 값을 자동으로 적용하여 균일한 영상 화질을 제공함과 동시에 이로 인한 노이즈의 증가를 최소화할 수 있다.

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Номер записи: 15
22-01-2019 дата публикации

넓은 영상화 영역을 확보할 수 있는 컨벡스 프로브를 이용한 초음파 신호의 송수신방법, 상기 방법을 이용한 초음파 신호의 송수신장치, 및 상기 방법을 이용한 초음파 신호의 송수신시스템

Номер: KR1020190007322A
Автор: 유양모, 강진범, 고두영
Принадлежит:

... 넓은 영상화 영역을 확보할 수 있는 컨벡스 프로브를 이용한 초음파 신호의 송수신방법이 개시된다. 본 발명의 일 실시예에 따르면, 구면파 형태의 초음파 신호를, 서로 다른 방향으로 송신하기 위한 송신지연시간 및 상기 초음파 신호에 대한 에코 신호를 수신하기 위한 수신지연시간을 계산하는 단계, 상기 송신지연시간을 적용하여, 상기 초음파를 송신하는 단계, 및 상기 수신지연시간을 적용하여, 상기 에코 신호를 수신하는 단계를 포함한다.

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Номер записи: 16
02-08-2012 дата публикации

SYNTHETIC APERTURE BEAM FOCUSING METHOD AND APPARATUS FOR DETERMINING THE NUMBER OF COMPOSITE BEAMS ACCORDING TO A MOVEMENT LEVEL

Номер: WO2012102503A3
Автор: YOO, Yang Mo, SONG, Tai-Kyong, CHANG, Jin Ho, CHO, Jeong, PARK, Jong Ho
Принадлежит:

The present invention relates to an apparatus for determining the number of composite beams comprising: a movement detection unit detecting a movement level from an output beam-forming image; a composite beam number determination unit determining the number of stable composite beams based on the movement level detected when a synthetic aperture method is applied; and a display unit displaying the number of composite beams determined in the composite beam number determination unit. In a system using a synthetic aperture beam focusing method, by displaying the detected movement in the image on a screen using various methods, the number of composite beams can be actively reduced or increased by a user, or can be changed immediately by the system with reference to pre-stored data.

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Номер записи: 17
31-08-2016 дата публикации

METHOD OF IMPROVING QUALITY OF ULTRASONIC IMAGE AND ULTRASONIC IMAGING APPARATUS USING METHOD

Номер: KR101652723B1
Автор: YOO, YANG MO, KIM, JEE HOO
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

The present invention relates to a method of improving a quality of an ultrasonic image. The method of improving the quality of an image comprises: a step of performing envelope detection on an ultrasonic echo signal reflected from an object to form an envelope signal; a step of generating a vertical profile representing an average magnitude value of pixels existing in a same depth using the envelope signal, and generating a time gain compensation (TGC) curve using the vertical profile; a step of generating a horizontal profile representing an average magnitude value at the same lateral position using the envelope signal, and generating a lateral gain compensation (LGC) curve by using the horizontal profile; a step of applying each of the TGC curve and the LGC curve to the envelope signal; and a step of forming an ultrasonic image based on the envelope signal to which the TGC curve is applied and the envelope signal to which the LGC curve is applied. COPYRIGHT KIPO 2016 (120) Transceiving ...

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Номер записи: 18
05-10-2017 дата публикации

NOVEL ULTRASONIC DOPPLER IMAGING DEVICE USING PLANE WAVE SYNTHESIS AND CONTROL METHOD THEREFOR

Номер: WO2017171210A1
Автор: YOO, Yang Mo, KANG, Jinbum
Принадлежит:

A method for controlling an ultrasonic Doppler imaging device, according to the present invention, comprises: a step of sequentially transmitting a preset number of plane waves constituting one set to a target object and receiving an echo signal reflected from the target object to obtain incident frames; a step of generating a preset number of ensemble frames by synthesizing a variable number of incident frames at specific time difference intervals among sequential incident frames corresponding to the plane waves; a step of repeating a step of generating next ensemble frames subsequent to the ensemble frames; and a step of generating a Doppler image using the preset number of ensemble frames, and displaying the generated Doppler image, wherein the synthesis of the variable number of incident frames at the specific time difference interval is determined on the basis of a blood flow velocity sought to be estimated. As such, an ultrasonic Doppler image with high resolution and sensitivity ...

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Номер записи: 19
03-07-2018 дата публикации

ULTRASONIC DOPPLER IMAGING APPARATUS AND METHOD FOR GENERATING SPECTRAL DOPPLER IMAGE

Номер: KR1020180074345A
Автор: YOO, YANG MO, KANG, JIN BUM, KIM, YEA JIN
Принадлежит:

The present invention provides a method for generating a spectral Doppler image by an ultrasonic Doppler imaging apparatus which can increase accuracy of a diagnosis position and temporal efficiency. The method comprises: a step of performing color Doppler processing on first ultrasonic data to generate a color Doppler image; a step of determining position information of a plurality of blood vessels included in the color Doppler image; a step of receiving a user input selecting one among the plurality of blood vessels; a step of determining a maximum speed position where a blood flow rate is maximum in the selected blood vessel and a blood vessel angle of the selected blood vessel; a step of setting an angle of an ultrasonic beam transmitted to a subject based on the maximum speed position and the blood vessel angle; and a step of using second ultrasonic data acquired as the ultrasonic beam is transmitted to the subject to generate a spectral Doppler image for the selected blood vessel.

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Номер записи: 20
18-04-2013 дата публикации

METHOD AND DEVICE FOR REMOVING AN HIFU INTERFERENCE SIGNAL

Номер: WO2013055129A2
Автор: CHANG, Jin Ho, SONG, Jae Hee, YOO, Yang Mo, SONG, Tai-Kyong, LEE, Yu Hwa
Принадлежит:

The present invention relates to a method of removing an HIFU interference signal. The method of the present invention is characterized by transmitting ultrasonic image signals while transmitting at least two HIFU signals out of phase, receiving ultrasonic signals including reflected HIFU signals and ultrasonic image signals when at least two HIFU signals and ultrasonic image signals are reflected from an object, summing the received ultrasonic signals, and removing basic frequency components and harmonic frequency components from HIFU signals in the received ultrasonic signals. The method of the present invention may acquire a monitor image from which HIFU interference is removed regardless of an HIFU length because a pulse inversion technique is used.

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Номер записи: 21
02-10-2015 дата публикации

METHOD AND DEVICE FOR GENERATING PHOTOACOUSTIC IMAGE

Номер: KR1020150109667A
Автор: CHANG, JIN HO, SONG, TAI KYONG, YOO, YANG MO, KANG, JE EUN
Принадлежит:

Disclosed are a method and a device for generating a photoacoustic image with an improved transverse resolution. The method for generating a photoacoustic image comprises the following steps: generating a first photoacoustic image by receiving a first photoacoustic signal generated from an object in response to light applied by a first light applying unit; generating a second photoacoustic image by receiving a second photoacoustic signal generated from an object in response to light applied by a second light applying unit; and generating a correlation image by calculating a mutual correlation between the first photoacoustic image and the second photoacoustic image. COPYRIGHT KIPO 2015 (110) Probe (120) Optical path selection unit (130) Laser applying unit (140) Ultrasonic pulse generation unit (150) Control unit (160) Mutual correlation estimation unit (182) Beam connection unit (184) Envelope detector (186) Signal processing unit (190) Image display unit ...

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Номер записи: 22
08-03-2016 дата публикации

Apparatus and method of producing photoacoustic images

Номер: KR0101601171B1
Автор: 장진호, 송태경, 유양모, 강지운
Принадлежит: 서강대학교산학협력단

... 횡 방향 해상도가 개선된 광음향 영상 생성 방법 및 장치가 제공된다. 광음향 영상 생성 방법은 제1 광인가부에서 인가된 광에 대응하여 대상체에서 발생되는 제1 광음향 신호를 수신하여 제1 광음향 영상을 생성하는 단계, 제2 광인가부에서 인가된 광에 대응하여 대상체에서 발생되는 제2 광음향 신호를 수신하여 제2 광음향 영상을 생성하는 단계 및 상기 제1 광음향 영상 및 제2 광음향 영상 간의 상호 상관도를 계산하여 상관도 영상을 생성하는 단계를 포함한다.

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Номер записи: 23
09-09-2016 дата публикации

ULTRASONIC DOPPLER IMAGING APPARATUS AND CONTROL METHOD THEREOF

Номер: KR101652727B1
Автор: YOO, YANG MO, YEO, SUN MI, KIM, HYO HEE
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

Disclosed is a control method of an ultrasonic Doppler imaging apparatus capable of obtaining an image in high resolution and sensitivity without a limit of a measurable blood speed. The control method of the ultrasonic Doppler imaging apparatus includes: a step of repeatedly and sequentially transmitting the predetermined number of plane waves in one set to a subject and obtaining an incident frame by receiving an echo signal of the plane waves reflected from the subject; a step of generating an ensemble frame by combining a predetermined number of incident frames of the sequential incident frames corresponding to the plane waves; a step of generating the next ensemble frames by adding the incident frame next to the final incident frame except for the first incident frame of the predetermined number of incident frames forming the ensemble frame; a step of repeating the step of generating the next ensemble frame; and a step of generating a Doppler image using the predetermined number of ...

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Номер записи: 24
10-08-2015 дата публикации

Apparatus and method for generating elastography using sheare wave

Номер: KR0101542835B1
Автор: 장진호, 송재희, 송태경, 유양모, 배수아
Принадлежит: 서강대학교산학협력단

... 횡파를 이용하여 탄성 영상을 생성하는 방법 및 장치에 관한 것으로, 이미징펄스를 피사체에 송수신하여 레퍼런스 프레임을 획득하고, 변조된 푸싱펄스를 피사체에 가함으로써 횡파를 생성하고, 생성된 횡파에 의해 피사체 내부에서 발생하는 상기 횡파의 변위 신호를 검출하고, 변조된 푸싱펄스에 따라 결정되는 정합필터를 이용하여 변위 신호를 필터링하며, 필터링된 변위 신호를 이용하여 영상을 생성함으로써, 탄성 영상의 화질을 향상시킬 수 있다.

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Номер записи: 25
03-07-2018 дата публикации

ULTRASONIC MEDICAL IMAGE APPARATUS CAPABLE OF ESTIMATING MOTION OF OBJECT AND METHOD FOR ADAPTIVELY DETERMINING REFERENCE FRAME OF SAME

Номер: KR1020180074364A
Автор: YOO, YANG MO, KANG, JIN BUM, SEO, HYUN AH
Принадлежит:

The present invention provides an ultrasonic medical image apparatus capable of estimating a motion of an object and a method for adaptively determining a reference frame thereof. The method includes: calculating a cross coefficient between the reference frame and a current frame of an ultrasonic image; updating the reference frame when the cross coefficient is lower than a pre-set threshold value; and estimating the motion of a tissue in the ultrasonic image based on a difference between the updated reference frame and the current frame. Herein, the updated reference frame can be an immediately preceding frame of the current frame. COPYRIGHT KIPO 2018 (s31) Calculating cross coefficient between reference frame and current frame (s32) Updating reference frame when cross coefficient is lower than pre-set threshold value (s33) Estimating motion of tissue in ultrasonic image ...

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Номер записи: 26
01-11-2012 дата публикации

METHOD AND DEVICE FOR SYNTHESIZING A FREQUENCY IMAGE USING THE ENERGY OF EACH FREQUENCY BAND

Номер: WO2012148072A1
Автор: CHANG, Jin Ho, SONG, Tai-Kyong, YOO, Yang Mo, YOON, Chang Han
Принадлежит:

The present invention relates to a method for synthesizing a frequency image, which comprises the steps of: estimating a center frequency for each band of a received signal; separating the received signal into each band using the estimated center frequency of each band; estimating the energy of each band using a result obtained from separating the received signal into each band; determining a weighting factor for each band from the estimated energy; and synthesizing a frequency image for each band by applying the determined weighting factor for each band to the result obtained from separating the received signal into each band, in order to provide an improved ultrasonic image having high contrast.

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Номер записи: 27
31-12-2015 дата публикации

Apparatus and method for obtaining photoacoustic image using motion compensatiion

Номер: KR0101581689B1
Автор: 유양모, 김민재, 강지운, 장진호, 송태경
Принадлежит: 서강대학교산학협력단

... 본 발명은 움직임을 보정을 이용한 광음향 영상 획득 기술에 관한 것으로서, 광음향 영상의 획득 방법은, 피측정 대상에 광자를 인가한 후 피측정 대상에 흡수된 광자에 의해 발생하는 초음파 신호를 수신하고, 광자 인가 및 초음파 신호 수신 과정을 반복함으로써 시간에 따라 수신된 초음파 신호들로부터 피측정 대상에 대한 복수 개의 프레임 영상을 획득하고, 획득된 프레임 영상 중 가장 최근의 프레임을 기준으로 이전 프레임에서 영상 내에 발생한 움직임을 각각 보상하며, 움직임이 보상된 복수 개의 프레임 영상을 누적하여 하나의 광음향 영상을 생성한다.

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Номер записи: 28
28-03-2018 дата публикации

ULTRASOUND IMAGE APPARATUS AND METHOD FOR DISPLAYING ULTRASOUND IMAGE

Номер: KR1020180031558A
Автор: LEE, WOO YOUL, YANG, EUN HO, KANG, JIN BUM, YOO, YANG MO
Принадлежит:

An ultrasound image apparatus and a method for displaying an ultrasound image are provided. The ultrasound image apparatus includes a processor which obtains a Doppler signal for a sample volume, divides the Doppler signal into a plurality of partial Doppler signals, and performs spectral analysis on each of the plurality of partial Doppler signals to generate a plurality of spectral Doppler signals, and generates a spectral Doppler signal for the sample volume from the plurality of spectral Doppler signals; and a display part for displaying the spectral Doppler signal for the sample volume. COPYRIGHT KIPO 2018 (2000) Ultrasonic image device (2010) Processor (2020) Display unit ...

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Номер записи: 29
05-07-2012 дата публикации

METHOD FOR GENERATING SYNTHETIC IMAGE AND ULTRASONIC IMAGING APPARATUS USING SAME

Номер: WO2012091280A1
Автор: YOO, Yang Mo, SONG, Tai-Kyong, CHANG, Jin Ho, CHO, Jeong, PARK, Jong Ho
Принадлежит:

The present invention relates to a method for generating a synthetic image, including the steps of: generating image data by a receiving dynamic beamforming method; generating image data by a synthetic aperture beamforming method; and synthesizing the image data generated through the receiving dynamic beamforming method and the image data generated through the synthetic aperture beamforming method by applying a weighted value to the image data generated through the receiving dynamic beamforming method and the image data generated through the synthetic aperture beamforming method according to a traveling distance of an ultrasonic wave. The method for generating the synthetic image can remove distortion caused by a grating lobe and image brightness, can compensate for the non-uniformity of an image, and can obtain a uniform energy distribution near a virtual transmission sound source by using a zone blending method which mainly uses the image data obtained through the receiving dynamic beamforming ...

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Номер записи: 30
09-06-2017 дата публикации

APPARATUS FOR ESTIMATING VELOCITY OF ULTRASOUND FOR MEDICAL USE AND ESTIMATION METHOD THEREOF

Номер: KR101745804B1
Автор: YOO, YANG MO, YOON, YEO KYEONG, KANG, JIN BUM, SONG, IL SEOB
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

A method of estimating the velocity of ultrasound for medical use according to the present invention comprises: an ROI selection process of selecting a region of interest (ROI) for estimating the velocity of an ultrasonic signal; a delay time RF data extraction process of extracting radio frequency (RF) data to which a delay time is applied to the ROI; a first delay time error curve extraction process of extracting a first delay time error curve based on a cross correlation between a signal of an array element and a reference signal; and an optimum velocity calculation process of calculating an optimum velocity of the ultrasonic signal at which the sum of the squares of the differences between the first delay time error curve and the second delay time error curve caused by a velocity error of the ultrasonic signal is minimized for the array element. The adaptive velocity estimation method using a phase profile related to the cross correlation of the ultrasonic signal may improve the image ...

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Номер записи: 31
09-06-2015 дата публикации

LESION MONITORING METHOD AND MEDICAL IMAGING SYSTEM

Номер: KR101525433B1
Автор: YOO, YANG MO, YE, JI HUI, SONG, TAI KYONG, CHANG, JIN HO
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

A method and a system of monitoring changes in a lesion state by using an ultrasonic echo signal reflected from an object are disclosed. The lesion monitoring method comprises: a first step of establishing ROI data for the lesion from an ultrasonic image reflected from an object; a second step of generating a fundamental image and a harmonic image from an ultrasonic echo signal for the object into which a contrast agent is injected; a third step of generating amended ROI data by tracking the position of the lesion on the basis of the ROI data in the fundamental image; and a fourth step of quantifying the lesion in the harmonic image on the basis of the amended ROI data. COPYRIGHT KIPO 2015 (144) Demodulation unit (146) Envelope detecting unit (152) Algebra conversion unit (154) Scan conversion unit (160) Control unit (162) Signal separating unit (164) Motion estimating unit (166) Lesion measuring unit (AA) Intermediate signal processing unit (BB) Output unit (142) DC removing unit (130) ...

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Номер записи: 32
14-12-2017 дата публикации

새로운 평면파 합성을 이용한 초음파 도플러 영상 장치 및 그 제어 방법

Номер: KR0101809358B1
Автор: 유양모, 강진범
Принадлежит: 서강대학교산학협력단

... 본 발명에 따른 초음파 도플러 영상 장치의 제어 방법은, 한 세트를 이루는 기설정된 개수의 평면파를 순차적으로 반복하여 대상체로 송신하고, 상기 평면파가 상기 대상체에서 반사된 에코 신호를 수신하여 입사 프레임을 획득하는 단계; 상기 평면파에 대응되는 순차적인 입사 프레임 중 특정 시간 차이 간격으로 가변 개수의 입사 프레임을 합성하여 기설정된 개수의 앙상블(ensemble) 프레임을 생성하는 단계; 상기 앙상블 프레임에 후속하는 다음 앙상블 프레임을 생성하는 단계를 반복하는 단계; 및 상기 기설정된 개수의 앙상블 프레임을 이용하여 도플러 영상을 생성하고, 상기 생성된 도플러 영상을 디스플레이하는 단계;를 포함하고, 상기 특정 시간 차이 간격으로 가변 개수의 입사 프레임의 합성은 추정하고자 하는 혈류 속도에 기반하여 결정되고, 프레임 율의 저하와 측정 가능한 혈류 속도의 제한 없이 높은 해상도와 민감도를 가진 초음파 도플러 영상을 얻을 수 있다.

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Номер записи: 33
01-05-2014 дата публикации

ULTRASOUND CONTRAST MEDIUM IN WHICH NANOPARTICLES CONTAINING DRUG ARE COMBINED, AND PREPARATION METHOD THEREFOR

Номер: WO2014065513A1
Автор: KIM, Hyuncheol, MOON, Hyungwon, SONG, Tai-Kyong, CHANG, jin Ho, YOO, Yang Mo
Принадлежит:

The present invention relates to an ultrasound contrast medium in which nanoparticles are combined having increased drug delivery capacity and enhanced drug penetration effects, and a preparation method therefor. The ultrasound contrast medium, according to the present invention, comprises drug-loaded nanoparticles combined on the surface thereof, and thus has improved drug delivery capacity and nanoparticle penetration. In addition, the present invention prepares nanoparticles using a cancer target-specific protein, thereby allowing selective diagnosis and treatment of cancer to be simultaneously carried out.

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Номер записи: 34
12-11-2015 дата публикации

Method for manufacturing intravascular ultrasound transducers and intravascular ultrasound transducer structure thereby

Номер: KR0101568682B1
Автор: 장진호, 송태경, 유양모, 이준수
Принадлежит: 서강대학교산학협력단

... 본 발명은 혈관 삽입형 초음파 변환자의 제조 방법 및 혈관 삽입형 초음파 변환자 구조체에 관한 것으로서, 초음파 변환자의 제조 방법은, 미리 설정된 두께에 따라 래핑(lapping)된 압전소자를 형성하고, 압전소자의 래핑된 면에 전도성 물질을 증착시키고, 전도성 물질이 증착된 압전소자의 전면과 후면을 캐스팅(casting)함으로써 각각 정합층과 후면층을 형성하고 미리 설정된 두께에 따라 래핑하며, 정합층, 압전소자 및 후면층이 적층된 소자를 IVUS(intravascular ultrasound)를 위한 임계 크기 이하가 되도록 적층 방향에 따라 절삭(dicing)함으로써 단일 소자(single element)를 제작한다.

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Номер записи: 35
28-03-2018 дата публикации

ULTRASOUND IMAGE APPARATUS AND METHOD FOR DISPLAYING ULTRASOUND IMAGE

Номер: KR1020180031559A
Автор: CHO, GAE YOUNG, YANG, EUN HO, LEE, WOO YOUL, KANG, JIN BUM, YOO, YANG MO
Принадлежит:

An ultrasound image apparatus and method for displaying an ultrasound image are provided. The ultrasound image apparatus includes a processor which acquires a Doppler signal for a sample volume with respect to a target object and performs spectral analysis on the Doppler signal in each of a plurality of intervals set on the sample volume, generates a plurality of spectral Doppler signals corresponding to each of the plurality of intervals, models the noise signal of the spectral Doppler signal for the object using a plurality of spectral Doppler signals and generates a spectral Doppler signal for the object having no noise; and a display part for displaying a spectral Doppler signal for the object having no noise. It is possible to generate and display the spectral Doppler signal. COPYRIGHT KIPO 2018 (3000) Ultrasonic image device (3010) Processor (3020) Display unit ...

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Номер записи: 36
04-04-2013 дата публикации

ULTRASONIC IMAGING SYSTEM FOR OBTAINING A HIFU (HIGH INTENSITY FOCUSED ULTRASOUND) FOCUSED IMAGE, AND METHOD FOR CREATING ULTRASONIC IMAGES BY USING SAME

Номер: WO2013047960A1
Автор: SONG, Tai-Kyong, YOO, Yang Mo, CHANG, Jin Ho, SONG, Jae Hee
Принадлежит:

The present invention relates to an ultrasonic imaging system including: a high intensity focused ultrasound (HIFU) transmitting beam former transmitting, focusing, and delaying HIFU transmitting signals through frequencies which belong to both a frequency response band for an ultrasonic image transducer and that for a HIFU transducer; a HIFU transducer transmitting the transmitted/focused/delayed HIFU transmitting signals to a subject; an ultrasonic image transducer receiving the ultrasonic signals from the subject; an image receiving beam former receiving, focusing, and delaying the received ultrasonic signals to create synthetic beams; and an ultrasonic image creating unit creating ultrasonic images from the generated synthetic beams. According to the present invention, the focused location of HIFU energy may be previously recognized to prevent undesired parts from becoming overused by HIFU surgery.

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Номер записи: 37
26-07-2018 дата публикации

대상체의 움직임을 추정하는 초음파 의료영상 장치가 적응적으로 참조 프레임을 결정하는 방법 및 그 초음파 의료영상 장치

Номер: KR0101882326B1
Автор: 유양모, 강진범, 서현아
Принадлежит: 서강대학교산학협력단

... 대상체의 움직임을 추정하는 초음파 영상 장치가 적응적으로 참조 프레임을 결정하는 방법을 제공한다. 본 방법은, 초음파 영상의 참조 프레임과 현재 프레임 간의 상관계수(cross coefficient)를 산출하는 단계; 상관계수가 문턱값(threshold value)보다 작으면, 참조 프레임을 갱신하는 단계; 및 갱신된 참조 프레임과 현재 프레임 간의 차이를 기초로, 초음파 영상 내의 조직의 움직임을 추정하는 단계를 포함한다. 이때, 갱신된 참조 프레임은, 현재 프레임 바로 이전 프레임일 수 있다.

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Номер записи: 38
31-08-2016 дата публикации

METHOD FOR IMPROVING QUALITY OF ULTRASONIC IMAGE AND ULTRASONIC IMAGING APPARATUS USING SAME

Номер: KR101652725B1
Автор: YOO, YANG MO, KIM, JEE HOO
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

A method for improving quality of an ultrasonic image is disclosed. The method for improving quality of an ultrasonic image comprises the steps of: forming an envelope signal by performing envelope detection for an ultrasonic echo signal reflected from an object; generating a horizontal profile indicating the average strength value of pixels having the same lateral position using the envelope signal; calculating the cumulative sum of the horizontal profile according to the lateral position, and generating a lateral gain compensation (LGC) curve using the cumulative sum; reflecting the LGC curve in the envelope signal; and forming an ultrasonic image based on the envelope signal in which the LGC curve is reflected. COPYRIGHT KIPO 2016 (120) Transceiving unit (130) Beam forming unit (140) Signal processing unit (142) DC removing unit (144) Demodulation unit (146) Envelope detecting unit (150) LGC processing unit (160) Image processing unit (162) Logarithmic converting unit (164) Scan converting ...

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Номер записи: 39
31-08-2016 дата публикации

초음파 영상 화질 개선 방법 및 이를 이용한 초음파 영상 장치

Номер: KR0101652728B1
Автор: 유양모, 김지후, 김규철, 장진호, 송태경
Принадлежит: 서강대학교산학협력단

... 초음파 영상의 화질 개선 방법이 개시된다. 본 화질 개선 방법은 대상체로부터 반사된 초음파 에코신호에 대해 포락선 검파(envelope detection)를 수행하여 포락선 신호(envelope signal)를 형성하는 단계, 포락선 신호를 복수의 영역으로 분할하고 분할된 영역별로 동일한 뎁스에 존재하는 픽셀들의 평균 세기 값을 나타내는 수직 프로파일을 생성하는 단계, 수직 프로파일의 뎁스에 따른 누적합을 산출하고, 누적합을 이용하여 TGC(Time Gain Compensation) 커브를 생성하는 단계; TGC 커브를 포락선 신호에 반영하는 단계 및 TGC 커브가 반영된 포락선 신호에 기초하여 초음파 영상을 형성하는 단계를 포함한다.

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Номер записи: 40
30-10-2015 дата публикации

APPARATUS AND METHOD FOR OBTAINING PHOTOACOUSTIC IMAGE BY USING MOTION COMPENSATION

Номер: KR1020150121872A
Автор: YOO, YANG MO, KIM, MIN JAE, KANG, JEE UN, CHANG, JIN HO, SONG, TAI KYONG
Принадлежит:

The present invention relates to a technology of obtaining a photoacoustic image by using motion compensation. A method for obtaining a photoacoustic image comprises the following steps: receiving an ultrasonic signal generated by a photon which is absorbed into an object to be measured after the photon is applied to the object to be measured; obtaining a plurality of frame images of the object to be measured from the ultrasonic signals received according to time by repeating processes of applying the photon and receiving the ultrasonic signal; compensating for each movement generated in an image of a previous frame with respect to the most recent frame among the obtained frame images; and generating one photoacoustic image by accumulating a plurality of frame images of which movements are compensated for. COPYRIGHT KIPO 2016 (AA) Start (BB) End (S110) Receiving an ultrasonic signal generated by a photon which is absorbed into an object to be measured after the photon is applied to the ...

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Номер записи: 41
13-05-2015 дата публикации

IMAGE QUALITY IMPROVING METHOD AND ULTRASONIC IMAGING DEVICE USING SAME

Номер: KR1020150051435A
Автор: YOO, YANG MO, LEE, YON HWA, CHANG, JIN HO, SONG, TAI KYONG
Принадлежит:

Suggested is a quality improving method of an ultrasound image including; a step of forming an envelope signal by performing the envelope detection for an ultrasound echo signal reflected from an object; a step of dividing the envelope signal into a plurality of areas and forming a TGC curve by the divided area; a step of obtaining a final TGC curve based on the average of the TGC curves which are produced by the area; a step of reflecting the final TGC curve on the envelope signal; and a step of forming an ultrasound image based on the envelope signal to which the final TGC curve is reflected. According to the present invention, the regular image quality can be provided by applying a TGC value according to the depth of an image automatically and the increase of noises can be minimized. COPYRIGHT KIPO 2015 (120) Transceiving unit (130) Beam formation unit (140) Image signal processing part (142) DC removing unit (144) Demodulation unit (146) Envelope detector (150) TGC processing unit ( ...

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Номер записи: 42
06-08-2015 дата публикации

METHOD FOR PRODUCING INTRAVASCULAR ULTRASONIC TRANSDUCER AND STRUCTURE THEREOF

Номер: WO2015115779A1
Автор: CHANG, Jin Ho, SONG, Tai-Kyong, YOO, Yang Mo, LEE, Junsu
Принадлежит:

The present invention relates to a method for producing an intravascular ultrasonic transducer and a structure for same, the method for producing a ultrasonic transducer producing a single element by: forming a piezoelectric element lapped according to a previously set thickness; depositing conductive material on the lapped surface of the piezoelectric element; forming a matched layer and a rear surface layer by casting the front and rear surfaces of the piezoelectric element to which conductive material has been deposited; lapping according to a previously set thickness; and dicing an element, which is a stack of a matched layer, a piezoelectric element and a rear surface layer, along the stack direction so that the size of the element is less than the critical size for intravascular ultrasound (IVUS).

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Номер записи: 43
17-10-2013 дата публикации

METHOD AND APPARATUS FOR GENERATING A FUNCTIONAL BLOODSTREAM IMAGE USING A PLANE WAVE

Номер: WO2013154229A1
Автор: YOO, Yang Mo, YOU, Jae Seok, YEO, Sun Mi, CHANG, Jin Ho, SONG, Tai-Kyong
Принадлежит:

The present invention relates to an apparatus for generating a functional bloodstream using a plane wave, which includes: a transducer for transmitting a plane wave to an object and receiving ultrasonic signals reflected from the object; a received beam collect part for collecting the ultrasonic signals as a beam by applying delayed reception time; a perpendicular demodulation part for generating same image components and different image components from the beam collected signal; a speed calculation part for calculating the bloodstream speed at a two-dimensional cross-sectional image point from the same and different image components; a mapping part for mapping the bloodstream speed on the image point; and a display part for displaying the bloodstream speed mapped on the image point, thereby securing many samples in order to improve the accuracy of the analysis of the bloodstream information, and displaying color images on the two-dimensional cross-section by using the bloodstream characteristics ...

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Номер записи: 44
28-03-2018 дата публикации

ULTRASOUND IMAGE APPARATUS AND METHOD FOR DISPLAYING ULTRASOUND IMAGE

Номер: KR1020180031557A
Автор: LEE, WOO YOUL, YANG, EUN HO, KANG, JIN BUM, YOO, YANG MO
Принадлежит:

An ultrasound image apparatus and a method for displaying an ultrasound image are provided. The ultrasound image apparatus includes a processor which obtains a Doppler signal for a sample volume, divides the Doppler signal into a plurality of partial Doppler signals, and performs spectral analysis on each of the plurality of partial Doppler signals to generate a plurality of spectral Doppler signals, and generates a spectral Doppler signal for the sample volume from the plurality of spectral Doppler signals; and a display part for displaying the spectral Doppler signal for the sample volume. COPYRIGHT KIPO 2018 (1000) Ultrasonic image device (1010) Processor (1020) Display unit ...

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Номер записи: 45
06-07-2015 дата публикации

IMAGE QUALITY IMPROVEMENT METHOD AND SYSTEM OF ULTRASOUND MEDICAL IMAGE BASED ON MULTI-SCALE

Номер: KR101533968B1
Автор: YOO, YANG MO, KANG, JIN BUM, KIM, MIN, CHANG, JIN HO, SONG, TAI KYONG
Принадлежит: SOGANG UNIVERSITY RESEARCH FOUNDATION

The present invention relates to an image quality improvement method and system of an ultrasound medical image based on multi-scale. More particularly, the image quality improvement method comprises: a step where an image decomposition unit receives an ultrasound medical image from the outside, and decomposes the same into a plurality of scale areas to allow the received ultrasound medical image to have different image features from each other; a step where a filter performs different filtering from each other with respect to the decomposed scale areas; and a step where an image composition unit composes the filtered scale areas in order to reconfigure the ultrasound medical image. According to the above-mentioned configuration, the image quality improvement method and system of the present invention can decompose the ultrasound medical image into the multi-scale and then, removes speckle noise through the different filtering treatment from each other, thereby improving the image quality ...

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Номер записи: 46
29-03-2018 дата публикации

ULTRASONIC IMAGING DEVICE AND ULTRASONIC IMAGE DISPLAY METHOD

Номер: WO2018056593A1
Автор: LEE, Woo-youl, YANG, Eun-ho, CHO, Gae-young, KANG, Jin-bum, YOO, Yang-mo
Принадлежит:

Disclosed are an ultrasonic imaging device and ultrasonic image display method. The ultrasonic imaging device according to an embodiment may include: a processor which acquires a Doppler signal for a sample volume, divides the Doppler signal into a plurality of partial Doppler signals, performs spectral analysis on each of the plurality of partial Doppler signals in order to produce a plurality of spectral Doppler signals, and produces a spectral Doppler signal for the sample volume from the plurality of spectral Doppler signals; and a display unit which displays the spectral Doppler signal for the sample volume.

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Номер записи: 47
13-02-2020 дата публикации

ULTRASOUND DIAGNOSIS APPARATUS, METHOD FOR DISPLAYING ULTRASOUND IMAGE, AND COMPUTER PROGRAM PRODUCT

Номер: WO2020032341A1
Автор: KIM, Kangsik, YOO, Yangmo, KANG, Jinbum, KIM, Jungho, GO, Dooyoung, BAEK, Jihye
Принадлежит:

Provided is a method for displaying an ultrasound image, the method comprising: acquiring data by transmitting ultrasound pulses to a subject and receiving echo signals reflected from the subject; analyzing the acquired data to detect micro-calcified tissues in the subject; and displaying an image representing the detected micro-calcified tissues.

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Номер записи: 48