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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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Применить Всего найдено 13. Отображено 13.
19-09-2017 дата публикации

APPARATUS AND METHOD FOR REMOVING IMAGE NOISE USING NON-LOCAL MEANS ALGORITHM

Номер: KR101776501B1
Автор: HONG, MIN CHEOL, KIM, DONG YOUNG, OH, JONG GEUN
Принадлежит: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION

An apparatus and method for removing image noise using a non-local means algorithm are disclosed. The apparatus for removing image noise is an apparatus for removing image noise using a local average algorithm which calculates a weight of each pixel in an input image and removes the noise of the input image. The apparatus includes a boundary line detection part for detecting boundary line components of an input image; an activity calculation part for calculating the activity of each pixel of the input image corresponding to the number of the boundary line components; a weight setting part configured to set the weight of each pixel based on the activity of each pixel; and a noise removing part which calculates a restored image where noise for each pixel of the input image are removed by using the weight of each pixel. The weight of each pixel is set in proportion to the activity of each pixel. It is possible to prevent the loss of important information in a boundary region. COPYRIGHT KIPO ...

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Номер записи: 1
15-01-2015 дата публикации

IMAGE PROCESSING SYSTEM AND METHOD

Номер: WO2015005519A1
Автор: HONG, Min-Cheol, NGUYEN, Tuan-Anh, KIM, Beomsu
Принадлежит:

Disclosed are an image processing system and method, which can predict added noise information according to local statistical characteristics of an observed image and can implement a noise detection and cancellation technique on the basis of the predicted noise information. The image processing system can extract the local statistical characteristics of an observed image, generate a low frequency pass filter according to the local statistical characteristics to generate a predicted noise image, extract local statistical characteristics of the predicted noise image, extract local statistical characteristics of a predicted original image using the local statistical characteristics of the observed image and the local statistical characteristics of the predicted noise image, detect noise by setting a flag level indicating a noise level for each pixel of the observed image according to the local statistical characteristics of the predicted original image, remove the noise by adaptively setting ...

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Номер записи: 2
25-04-2016 дата публикации

ADAPTIVE NON-LOCAL AVERAGE DENOISING METHOD, AND RECORDING MEDIUM AND DEVICE FOR EXECUTING SAME

Номер: KR101615122B1
Автор: HONG, MIN CHEOL, NGUYEN TUAN AHN, KIM, DONG YOUNG
Принадлежит: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK

An adaptive non-local average denoising method includes: a step of calculating a first weighted value according to similarity between patches around each pixel existing in a search area with a predetermined size in an input image; a step of downscaling the input image; a step of calculating a second weighted value according to similarity between the patches in the search area of the downscaled image; and a step of recovering the image of each pixel based on first and second weighted values. Therefore, the present invention is capable of reducing the loss of an outline and distortion in an area in which local activity is high. COPYRIGHT KIPO 2016 (110) First weighted value calculating part (130) Down scaling unit (150) Second weighted value calculating part (170) Image recovery part (AA) Input image (BB) Recovered image ...

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Номер записи: 3
03-12-2015 дата публикации

IMAGE PROCESSING METHOD AND SYSTEM USING SAME, AND RECORDING MEDIUM FOR PERFORMING SAME

Номер: WO2015182802A1
Автор: HONG, Mincheol, NGUYEN, Tuan anh, OH, Jonggeun
Принадлежит:

An image processing system comprises: a noise detection unit for extracting local statistical characteristics of a predicted original image according to local statistical characteristics of an observed image and local statistical characteristics of a predicted noise image, setting a flag level indicating a distortion state for each pixel of the observed image according to the local statistical characteristics of the predicted original image, segmenting the observed image through a filter window, and detecting a noise by checking the distortion states of pixels adjacent to each other and correcting the flag level; and a noise cancellation unit for cancelling noise by adaptively setting a filter size according to the corrected flag level, when the flag level corrected through the noise detection unit is determined. Therefore, the image processing system may implement adaptive noise detection and cancellation techniques of a distorted image damaged by the noise, and may detect a contour of ...

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Номер записи: 4
17-05-2018 дата публикации

IMAGE ENHANCEMENT METHOD AND APPARATUS THEREOF

Номер: KR1020180051856A
Автор: HONG, MIN CHEOL, OH, JONG GEUN
Принадлежит:

Disclosed are an image enhancement method and an apparatus thereof. The image enhancement method includes the steps of: (a) estimating a reflection component for each pixel using a luminance component of an input image; (b) calculating a reflection component skewness and a luminance component skewness using the estimated reflection component of each pixel and the luminance component of each pixel; (c) calculating a parameter using the luminance component skewness; (d) calculating a gain and an offset of the reflection component using the reflection component skewness; (e) correcting the estimated reflection component for each pixel using the parameter and the gain and the offset of the reflection component; and (f) correcting the luminance component of each pixel using the corrected reflection component of each pixel. By providing an image enhancement method and an apparatus thereof according to an embodiment of the present invention, a low illuminance area of an image can be improved.

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Номер записи: 5
27-08-2020 дата публикации

IMAGE RESTORATION DEVICE AND METHOD

Номер: WO2020171304A1
Автор: HONG, Min Cheol, OH, Jong Geun
Принадлежит:

According to one embodiment of the present invention, provided is an image restoration device comprising: a resolution converting unit that converts a resolution of an input image to generate a lower-resolution image; a patch dividing unit that divides the input image and the lower-resolution image into patch units; a similarity measurement unit that searches for a similar patch between regions of the input image and the lower-resolution image by using the norm order p according to kurtosis of the image patch; and an image restoration unit that restores a high-resolution image on the basis of the similar patch of lower resolution and the input image.

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Номер записи: 6
19-12-2018 дата публикации

METHOD OF FILLING HOLE BY USING ESTIMATED SPATIAL-TEMPORAL BACKGROUND INFORMATION, RECORDING MEDIUM AND APPARATUS FOR PERFORMING SAME

Номер: KR1020180134563A
Автор: HONG, MIN CHEOL, KIM, BEOM SU, NGUYEN TIEN DAHT
Принадлежит:

Disclosed are a method for filling a hole by using estimated spatial-temporal background information, and a recording medium and apparatus for performing the same. The method for filling a hole by using estimated spatial-temporal background information comprises: a temporal background information estimation step of extracting a background codebook for each non-overlapping patch by using a color image and a depth image for each frame of an input image, and estimating a temporal background color image and depth image by using the extracted background codebook; a 3D warping step of obtaining a color image and a depth image of a virtual view by 3D-warping the color image and the depth image, and obtaining a temporal background color image and depth image of a virtual view by 3D-warping the temporal background color image and depth image; a ghost removing step of removing a ghost phenomenon from the color image and the depth image of the virtual view, and removing a ghost phenomenon from the ...

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Номер записи: 7
23-10-2017 дата публикации

홀 채움 방법, 이를 수행하기 위한 기록매체 및 장치

Номер: KR0101781942B1
Автор: 홍민철, 김범수, 응웬띠엔닷, 도안후노이
Принадлежит: 숭실대학교산학협력단

... 각 프레임에 대한 컬러 영상 및 그에 대응하는 깊이 맵 정보를 포함하는 입력 영상으로부터 가상 시접 영상을 합성하는 과정에서 발생하는 홀 영역에 대한 홀 채움 방법에 있어서, 상기 입력 영상의 현재 프레임에 대한 정적 배경 정보를 추출하고 이를 이용하여 가상 정적 배경 정보를 추출하며, 상기 현재 프레임에 대한 컬러 영상 및 깊이 맵을 워핑하여 가상 영상과 가상 깊이 맵을 획득하고, 가상 깊이 맵에 나타나는 홀 영역에 대한 레이블링을 수행하여 국부 배경 정보를 추출하며, 상기 가상 정적 배경 정보와 상기 국부 배경 정보 간의 유사도를 이용하여 상기 가상 영상 및 상기 가상 깊이 맵에 대한 1차 홀 채움을 수행하고, 상기 1차 홀 채움 뒤 잔존 홀들에 대하여 깊이 항을 포함하는 우선순위 함수를 적용한 표본 기반 인페인팅 방식으로 2차 홀 채움을 수행하는 홀 채움 방법이 개시된다.

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Номер записи: 8
18-09-2017 дата публикации

HOLE-FILLING METHOD, RECORDING MEDIUM AND APPARATUS FOR PERFORMING METHOD

Номер: KR1020170104825A
Автор: HONG, MIN CHEOL, KIM, BEOM SU, NGUYEN TIEN DAT, DOAN HUU NOI
Принадлежит:

A hole filling method for a hole region generated in a process of synthesizing a virtual viewpoint image from an input image including a color image for each frame and depth map information corresponding to it, includes: extracting static background information on the current frame of the input image and extracting virtual static background information using the extracted static background information; obtaining a virtual image and a virtual depth map by warping the color image and depth map of the current frame; extracting the local background information by performing labeling on the hole region appearing in the virtual depth map; performing primary hole filling on the virtual image and the virtual depth map by using similarity between the virtual static background information and the local background information; and performing secondary hole filling by a sample-based inpainting method using a priority function including a depth term to the remaining holes after the primary hole filling ...

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Номер записи: 9
03-01-2014 дата публикации

APPARATUS AND METHOD FOR SETTING SEARCH REGION FOR PREDICTING MOTION VECTOR

Номер: WO2014003254A1
Автор: HONG, Min-Cheol, NOH, Jin- Young, KIM, Myoung-Jin
Принадлежит:

The present invention relates to an apparatus and method for setting a search region for predicting a motion vector. The apparatus for setting a search region for predicting a motion vector includes: a calculation unit which calculates the differences between the origin vector of a search region for the target block of motion vector prediction and the predicted motion vectors of multiple neighboring blocks which are adjacent to the target block, and calculates the sum of the absolute values of the differences; and a search region setting unit which sets a search region range for the target block by using at least one directivity of the predicted motion vectors for the multiple neighboring blocks and the sum of the absolute values of the differences. According to the present invention, the number of calculations and the calculation time taken for predicting a motion vector can be greatly reduced.

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Номер записи: 10
30-09-2016 дата публикации

VIDEO STABILIZATION METHOD BASED ON FILTERING FOR REDUCTION OF UNINTENTIONAL MOTION, AND RECORDING MEDIUM AND APPARATUS FOR PERFORMING METHOD

Номер: KR101661476B1
Автор: HONG, MIN CHEOL, KIM, BEOM SU, LIM, JIN JU
Принадлежит: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION

The present invention relates to a video stabilization method based on filtering for reduction of unintentional motion, which can control strength of application of filtering for reduction of unintentional motion based on a change in a motion component of an image, and which can incorporate nonlinear characteristics of the image thereinto. The video stabilization method comprises the steps of: obtaining a cumulative affine transformation parameter by using a parameter of an affine transformation matrix indicative of a relationship between adjacent frames in an input video; calculating motion of the input video based on a change in the cumulative affine transformation parameter; obtaining an affine transformation matrix, in which an unintentional motion component has been reduced, by filtering the cumulative affine transformation parameter using an alpha-trimmed means motion filter whose strength has been controlled based on the motion of the input video; and obtaining a restored video, ...

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Номер записи: 11
11-04-2018 дата публикации

BLOCK TYPE ELECTRONIC GUITAR AND PLAYING METHOD OF ELECTRONIC GUITAR

Номер: KR101847742B1
Автор: KIM, JEONG DO, LEE, YOUNG JOON, HONG, MIN CHEOL, LEE, SUN JE, KIM, YOUNG BIN, WOO, JAE MOON
Принадлежит: HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION

The present invention relates to a block type electronic guitar comprising: a body which includes six vibration plates and six vibration sensors connected to the respective vibration plates; a first neck which is connected to the body and includes a first switch part including a plurality of switches and a first substrate connected to the first switch part; a second neck which is connected to the first neck and includes a second switch part including a plurality of switches and a second substrate connected to the second switch part; a communication part which connects the body, the first neck, and the second neck in a wired or wireless manner; and a sound output part which outputs sounds. A resistance is placed between points on the first and second substrates connected to the respective switches, and a voltage value measured at both ends of the first or second neck is different depending on the type of the switch which is pushed and brought into contact with the substrate. Predetermined ...

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Номер записи: 12
17-07-2018 дата публикации

영상 개선 방법 및 그 장치

Номер: KR0101878817B1
Автор: 홍민철, 오종근
Принадлежит: 숭실대학교 산학협력단

... 영상 개선 방법 및 그 장치가 개시된다. 영상 개선 방법은 (a) 입력 영상의 휘도 성분을 이용하여 각 픽셀에 대한 반사 성분을 각각 예측하는 단계; (b) 상기 각 픽셀의 예측된 반사 성분과 상기 각 픽셀의 휘도 성분을 이용하여 반사 성분 비대칭도 및 휘도 성분 비대칭도를 각각 계산하는 단계; (c) 상기 휘도 성분 비대칭도를 이용하여 매개변수를 계산하는 단계; (d) 상기 반사 성분 비대칭도를 이용하여 상기 반사 성분의 이득 및 오프셋을 계산하는 단계; (e) 상기 매개 변수, 상기 반사 성분의 이득과 오프셋을 이용하여 상기 각 픽셀에 대해 상기 예측된 반사 성분을 보정하는 단계; 및 (f) 상기 각 픽셀의 보정된 반사 성분을 이용하여 상기 각 픽셀의 휘도 성분을 보정하는 단계를 포함한다.

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Номер записи: 13