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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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Применить Всего найдено 7. Отображено 7.
08-10-2014 дата публикации

Human body vein image feature extraction method

Номер: CN104091146A
Автор: ZHOU YUJIA, LIU YAQIN, LU HUILI, HUANG ZHENPENG, YU QIAOHONG, NIE WEIQING, ZHAN ENYI, CHEN ZHIGANG
Принадлежит:

The invention discloses a human body vein image feature extraction method which comprises the steps of acquiring a human body vein image and establishing the image in a coordinate system, and then extracting the vein direction features through a directional filter. The method is characterized in that vein direction feature extraction through the directional filter is realized by performing convolution operation on the image established in the coordinate system by use of Radon transform to extract the features of the vein image. The whole feature extraction process comprises the following steps: (1) setting a distance function, which is shown in the description; (2) setting a neighborhood consistent with the distance function and dividing the neighborhood into k directions: Lk={(i, j):j=k(i-i0)+j0, i belongs to Zp}, wherein (i, j) belongs to local(i0, j0); and (3) calculating the energy response of the k directions according to a formula in the description. By adopting the human body vein ...

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Номер записи: 1
25-03-2015 дата публикации

Network priority search method for mobile terminal

Номер: CN104469897A
Автор: DUO HAO, GUO GAN, WEI RAN, LIU ZHEN, LAI ZHIJING, NIE WEIQING, LIU DI
Принадлежит:

The invention discloses a network priority search method for a mobile terminal. The method includes the steps that step1, the mobile terminal reads stored operator access information and frequency band priority control information, if the information is empty, step 2 is executed, and if the information is not empty, step 4 is executed; step 2, the mobile terminal conducts network search according to the default information, initiates a cell residence process and uploads related information identification with empty content; step 3, the mobile terminal receives updated information issued by an operator server and finishes the cell residence process; step 4, the mobile terminal conducts network search according to the stored information, initiates the cell residence process and uploads the related information identification, and the operator server judges whether information needs to be updated or not; if yes, the mobile terminal receives the updated information issued by the operator server ...

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Номер записи: 2
07-01-2015 дата публикации

Recognition method for human body after vein image feature extraction

Номер: CN104268502A
Автор: ZHOU YUJIA, LIU YAQIN, LU HUILI, HUANG ZHENPENG, HE SUNING, NIE WEIQING, ZHAN ENYI
Принадлежит:

The invention discloses a recognition method for the human body after vein image feature extraction. According to the method, human body vein directional diagram feature matrix templates which are already stored inside a database in the registration process are adopted, in the recognition process, firstly, the same method in the registration process is adopted for extracting a vein directional diagram feature matrix of the recognized human body, after the directional diagram feature matrix is obtained, features of the vein directional diagram feature matrix are matched with all the vein directional diagram feature matrix templates stored inside the database, and matching results are output, wherein matching is performed according to the formula defined in the specification. The recognition method for the human body after vein image feature extraction is simple and effective, feature matching speed is high, and the extraction method for the vein image features not only removes excessive ...

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Номер записи: 3
08-10-2014 дата публикации

Human palm vein feature image acquisition method

Номер: CN104091145A
Автор: LIU YAQIN, ZHOU YUJIA, LU HUILI, HUANG ZHENPENG, HE SUNING, NIE WEIQING, ZHAN ENYI
Принадлежит:

The invention discloses a human palm vein feature image acquisition method. The method comprises the following steps: first, an original palm vein image is acquired by an infrared acquisition device; second, through palm contour lines, the contour line where the middle finger is located is positioned, the midline of the middle finger is obtained, and the original palm vein image is rotated and corrected with the midline as a benchmark; third, two key points are selected, namely, the angular point A of the fingertips of the index finger and the middle finger and the angular point B of the fingertips of the ring finger and the little finger; fourth, a coordinate system is established with the line in which A and B are located as the X axis and a line perpendicular to the line AB as the Y axis; fifth, an image of which the size is preset is extracted as a ROI image; and finally, a palm vein feature image is extracted through Radon transform. By adopting the human palm vein feature image acquisition ...

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Номер записи: 4
09-12-2015 дата публикации

Self -service authentication cabinet -type air conditioner of palm vein discernment identity

Номер: CN0204856525U
Автор: LU HUILI, HUANG ZHENPENG, YU QIAOHONG, NIE WEIQING, ZHAN ENYI, HE SUNING
Принадлежит:

Utility model embodiment invention aim at provides a self -service authentication cabinet -type air conditioner of palm vein discernment identity, is in including cabinet -type air conditioner main part and setting the palm vein recognition device of cabinet -type air conditioner main part surface, and set up inside industry control mainboard and the network card of cabinet -type air conditioner main part, palm vein recognition device and network card connect the industry control mainboard. By applying the technical scheme of the embodiment, the function of network card and database realization palm vein discernment is passed through with palm vein recognition device and industry control mainboard connection to setting up these parts in the cabinet -type air conditioner main part, forming the cabinet -type air conditioner of a self -service verification, this embodiment can be so that lay in any convenient position, and the extension of being convenient for is used in people's life, and ...

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Номер записи: 5
17-12-2014 дата публикации

Method for setting effective range of filter field in vein feature extraction process

Номер: CN104217207A
Автор: LIU YAQIN, ZHOU YUJIA, LU HUILI, HUANG ZHENPENG, YU QIAOHONG, NIE WEIQING, ZHAN ENYI
Принадлежит:

The invention discloses a method for setting the effective range of a filter field in a vein feature extraction process. A distance function is defined as a formula described in the description, wherein (i0, j0) is a central pixel point; the field range obtained according to the distance function as above defined is an area local (i0, j0) which is similar to a circle and composed of pixel points not more than d. According to the method for setting the effective range of the filter field in the vein feature extraction process, excessive redundant information is removed, computation complexity and amount are reduced, and more effective information can be contained. Through constructing the distance function to determine the effective range of the filter field, better recognition effect can be obtained.

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Номер записи: 6
08-10-2014 дата публикации

Directional filter constructing method in the process of vein image feature extraction

Номер: CN104091144A
Автор: LIU YAQIN, ZHOU YUJIA, LU HUILI, HUANG ZHENPENG, CHEN ZHIGANG, NIE WEIQING, ZHAN ENYI, DENG QIANG
Принадлежит:

The invention discloses a directional filter constructing method in the process of vein image feature extraction. First, a neighborhood consistent with a distance function is set and is divided into k directions. Lk={(i, j):j=k(i-i0)+j0, i belongs to Zp}, wherein (i, j) belongs to local(i0, j0). The method is characterized in that six direction intervals are selected for the divided k directions, wherein the direction 0 is 0 degree, the angle of the direction 1 belongs to the interval [30, 31.875], the angle of the direction 2 belongs to the interval [58.125, 60], the angle of the direction 3 is 90 degrees, the angle of the direction 4 belongs to the interval [120, 121.875], and the angle of the direction 5 belongs to the interval [148.125, 150]. The provided directional filter constructing method in the process of vein image feature extraction is consistent with the neighborhood of the distance function, ensures that filters in the k directions contain the same number of pixels, minimizes ...

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Номер записи: 7