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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 10. Отображено 10.
13-02-2013 дата публикации

Method for realizing structural description processing of video image based on target tracking of multiple cameras

Номер: CN102930556A
Автор: Li Wancai, Chen Jianyong, Tang Zhiwei, Shen Dongqing, Mei Lin, Wu Yixuan
Принадлежит:

The invention relates to a method for realizing structural description processing of a video image based on target tracking of multiple cameras in a computer system and belongs to the technical field of video processing. The method comprises the following steps of: dividing the video image by using the multiple cameras and extracting targets; tracking the targets; updating a target characteristic model; extracting obvious characteristics of the targets; calculating to obtain the distance between the targets by a system, matching the same targets, and further controlling multiple cameras to cooperatively track the targets; and finally performing the structural description on the targets to produce the corresponding text information. The method can be applied to the video tracking and retrieving of important targets. By the method, the work intensity of monitoring staff is greatly reduced, and the accuracy and the efficiency of video retrieving are improved; and the method for realizing structural ...

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Номер записи: 1
12-09-2012 дата публикации

Method for acquiring road information based on laser ranging node system

Номер: CN102663893A
Автор: Chen Jianyong, Li Wancai, Jiang Hong, Shen Dongqing, Li Zhenyu, Mei Lin, Wu Yixuan
Принадлежит:

The invention relates to a method for acquiring road information based on a laser ranging node system. A node device realizes laser ranging in a certain inclination mode, an internal data processor can recognize vehicle information according to related information of a distance value, accordingly, the functions of vehicle speed measurement, vehicle behavior trigger, vehicle contour tracing, vehicle flow counting and the like can be realized, and a bayonet server can acquire the road information according to the vehicle information of the laser ranging node device to release road service information and road supervision instructions. The method for acquiring the road information based on the laser ranging node system can be used for efficiently acquiring the road information, and can effectively overcome the shortcomings of complicated laying, low sampling rate, incapability of effectively identifying vehicle types and the like of a detection device in the prior art. Moreover, the method ...

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Номер записи: 2
10-10-2012 дата публикации

Network camera adopting dual-kernel control

Номер: CN102724395A
Автор: Tang Zhiwei, Jiang Hong, Shen Dongqing, Li Wancai, Mei Lin, Qi Li, Li Zhenyu, Yang Ming
Принадлежит:

The invention discloses a network camera adopting dual-kernel control. The network camera comprises a network camera hardware system, embedded software and a network service center, wherein a core of the network camera hardware system is a master control chip which is connected with an image acquisition device, a data transmission interface device, a storage device and a power supply through interfaces; the network service center is connected with the network camera hardware system through the data transmission interface device; the master control chip comprises a digital signal processing (DSP) kernel and an advanced RISC machine (ARM) kernel, which realize communication in a mutual interruption way; the DSP kernel is used for collecting, analyzing and processing image data acquired by the image acquisition device; and the ARM kernel is used for realizing control functions of the interfaces, and transmitting control instructions to a DSP unit. The network camera has the advantages that ...

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Номер записи: 3
03-10-2012 дата публикации

Digital signal processor (DSP) platform-based method for realizing optimization of video coding by utilizing motion estimation algorithm

Номер: CN102710940A
Автор: Li Wancai, Tang Zhiwei, Shen Dongqing, Mei Lin
Принадлежит:

The invention relates to a digital signal processor (DSP) platform-based method for realizing optimization of video coding by utilizing motion estimation algorithm. The method is characterized in that a coding system is used for conducting matching of a frame macroblock for a current frame and a reference frame, when the matched frame macroblock reaches a threshold value, the matching is stopped to determine the maximal matched frame, the threshold value can be the maximal quantity of the self-adaptive matched frame macroblocks, so that the motion estimation algorithm for prediction and threshold value control by utilizing the image analysis is realized, and the searching speed is improved on the basis that the image quality is not reduced and the code rate is not increased. Meanwhile, with an optimized memory system, the reading speed of the current frame and the reference frame is improved, so that the time for the entire video coding process can be effectively reduced, the video coding ...

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Номер записи: 4
26-09-2012 дата публикации

Method for precise positioning of license plate in strong light conditions

Номер: CN102693423A
Автор: Tang Zhiwei, Mei Lin, Qi Li, Yang Ming, Jiang Hong, Shen Dongqing, Li Wancai, Li Zhenyu
Принадлежит:

The invention discloses a method for precise positioning of a license plate in strong light conditions. The method comprises the following steps: (1) using the picture of a license plate to be processed to conduct preprocessing by self-adaptive median filtering; (2) using a differential operator to conduct edge detection of the license plate; (3) converting an image after the edge detection to a binary edge image; (4) de-nosing the binary edge image in a morphological manner and forming a plurality of communicated regions; (5) performing morphological processing on the communicated regions; and (6) positioning the region of the license plate according to the results of the communicated regions. The method for precise positioning of a license plate in strong light conditions can effectively solve the problem of interference to the positioning of the license plate under irradiation of strong light, enable the positioning accuracy to be improved, and is applicable for extracting license plates ...

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Номер записи: 5
30-01-2013 дата публикации

System and method for carrying out texture feature extraction and structured description on video images

Номер: CN102903126A
Автор: Tang Zhiwei, Liu Yunhuai, Mei Lin, Qi Li, Shen Dongqing, Li Zhenyu, Yang Ming, Jiang Hong, Li Wancai, Chen Longhu, Li Pan, Wang Bo
Принадлежит:

The invention discloses a system and a method for carrying out texture feature extraction and structured description on video images. According to the invention, under the control of a dual-core DSP (digital signal processor) chip, a video image acquisition module carries out real-time acquisition on an image, and after the image is processed through an A/D (analog to digital) sampling module, the image is subjected to segmentation so as to obtain a plurality of sub images; a two-dimensional Gabor wavelet module carries out filtering processing on the sub images, and then through carrying out extraction on the sub images by using a texture feature extraction module, the texture features of the sub images are obtained; a classification and discrimination module carries out features matching with a Brodatz standard texture library according to the extracted texture features; and finally, a structured description module carries out structured description on the texture features and the classification ...

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Номер записи: 6
10-10-2012 дата публикации

Device and method for performing structuralized description for input audios by aid of dual-core processor

Номер: CN102724485A
Автор: Tang Zhiwei, Mei Lin, Qi Li, Jiang Hong, Shen Dongqing, Li Wancai, Li Zhenyu, Yang Ming
Принадлежит:

The invention discloses a device and a method for performing structuralized description for input audios by aid of a dual-core processor. The core of the device is a dual-core control chip, and the dual-core digital signal processor (DSP) of a single chip can be used for processing and analyzing the audios, dividing images into a plurality of sections and sub areas, performing feature extraction and high-level semantic analyzing for the audio image sections and the sub areas and finally coding the audio images, image features and high-level semantic data to obtain codes of the audio images and codes of audio image structuralized descriptive data. Network transmission is carried out in wired mode and wireless mode. The coded data are structuralized descriptions for the audio image features and contents, facilitate inquiring, researching and browsing of users, and enable monitoring audio data to be effectively used and managed.

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Номер записи: 7
01-08-2012 дата публикации

Laser ranging-based road vehicle information acquisition node device

Номер: CN102622890A
Автор: Chen Jianyong, Shen Dongqing, Li Wancai, Jiang Hong, Li Zhenyu, Mei Lin, Wu Yixuan
Принадлежит:

The invention relates to a laser ranging-based road vehicle information acquisition node device, which comprises a laser distance sensor and a data processor, wherein the data processor is arranged in the laser distance sensor; the node device is erected above a lane on a road; a large-angle laser receiving-transmitting ranging sensor is adopted as the laser distance sensor; the data processor is provided with a vehicle information identifying module; and the vehicle information identifying module is connected with the laser distance sensor and an external road control system server. According to the node device disclosed by the invention, the data processor can be used for realizing multiple functions such as vehicle speed measuring, vehicle action triggering, vehicle profile description, vehicle metering statistics and the like through ranging data acquired by using the laser distance sensor on the basis of the variation of ranging data; and the laser ranging-based road vehicle information ...

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Номер записи: 8
03-10-2012 дата публикации

Automatic motorcycle type identification system and method based on high-speed pulse laser scanning

Номер: CN102708694A
Автор: Li Wancai, Chen Jianyong, Tang Zhiwei, Shen Dongqing, Mei Lin, Wu Yixuan
Принадлежит:

The invention relates to an automatic motorcycle type identification system and method based on high-speed pulse laser scanning, belonging to the technical field of intelligent traffic management devices and methods. The automatic motorcycle type identification system comprises a high-frequency laser ranging module, a motorcycle outline drawing module and a motorcycle type identification module, the high-frequency laser ranging module and the motorcycle outline drawing module are vertically arranged above a lane. By using the method provided by the invention, the high-frequency laser ranging module is used for carrying out real-time pulse laser ranging and sending a distance value to the motorcycle outline drawing module, the motorcycle outline drawing module is used for drawing a distance parameter scanning graph in real time and sending the distance parameter scanning graph to the motorcycle type identification module, and the motorcycle type identification module is used for identifying ...

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Номер записи: 9
30-01-2013 дата публикации

Method for processing structured description of video image data and capable of implementing multi-target tracking

Номер: CN102902965A
Автор: Li Wancai, Tang Zhiwei, Shen Dongqing, Mei Lin, Wu Yixuan
Принадлежит:

The invention relates to a method for processing structured description of video image data and capable of implementing a function of multi-target tracking in a computer system, belonging to the technical field of video treatment. According to the method, a target detecting module is used for detecting and matching a dynamic target of video image data, and updating the target status according to a situation whether the dynamic target is shaded, and then updating the target and a track; and describing information by an information describing module, to generate structured description information which is understandable to both a computer and a human body. According to the method for processing structured description of video image data and capable of implementing the multi-target tracking, the video search speed is effectively increased to adapt to application of the video image in the network transmission on the basis of not reducing the image quality and not increasing the code rate; besides ...

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Номер записи: 10