Crowd characteristic counting system
A technology for statistical systems and crowds, applied in CCTV systems, components of TV systems, counting objects, etc., can solve problems such as target loss and low accuracy, achieve accurate feature matching methods, ensure reliability, and crowd characteristics. Statistically accurate results
Inactive Publication Date: 2011-12-14
王巍
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Problems solved by technology
[0008] The purpose of the present invention is to solve the above-mentioned technical problems and provide a crowd feature statistics system to solve the problems of low accuracy and frequent target loss when the current crowd feature statistics system performs statistics in a large field of view and a large number of individuals.
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[0072] In order to make the above-mentioned objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0073] The demographic statistics system includes the following parts, such as figure 1 Shown:
[0074] The video and audio acquisition module is used to process the collected video and audio signals to obtain digital video sequences and digital audio sequences;
[0075] The video and audio quality improvement module is used to improve the quality of digital video sequences and digital audio sequences;
[0076] Video and audio feature extraction module, used for feature extraction and feature matching of digital video sequences, feature extraction, feature matching, and feature classification of digital audio sequences;
[0077] Video and audio feature statistics module, including depth-of-field update sub-module an...
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The invention relates to the field of computer vision and artificial intelligence, in particular to the field of intelligent video analysis. The invention provides a crowd characteristic counting system in order to solve the problems of low accuracy and frequency target loss which are encountered when the conventional crowd characteristic counting system is used for counting in analysis places ofwide vision field and large number of individuals. The system comprises a video and audio acquisition module, a video and audio quality improvement module, a video and audio characteristic extractionmodule, a crowd characteristic counting mould and a video and audio real-time control platform, wherein during characteristic counting, a track segmental counting method is adopted for counting the characteristics when the density of a crowd is smaller than a set threshold, and a block matching method is adopted for counting the characteristics when the density of the crowd is greater than the set threshold. Through the application of video and audio quality improvement, field depth real-time updating, the track segmental counting method and the motion block matching method, the accurate counting of the crowd characteristics is realized and the common drawbacks of target loss and difficult matching and tracing of the conventional system are overcome.
Description
Technical field [0001] The present invention relates to the field of computer vision and artificial intelligence, especially the field of intelligent video monitoring, and proposes a population characteristic statistical system. Background technique [0002] In recent years, with the development of science and technology, public security video surveillance systems are a powerful means to actively control and combat urban social security, such as establishing public security video surveillance in stations, wharfs, airports, ports, urban traffic routes and entrances and exits. The system, taking advantage of its modern technological defense methods, is of great significance to maintaining social, political and public security stability. [0003] In some applications, it is necessary to perform statistical analysis on crowd characteristics, such as crowd density, instantaneous population, population statistics, crowd flow statistics, etc., to ensure public safety or implement better m...
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IPC IPC(8): H04N7/18H04N5/21G06M11/00
Inventor 王巍
Owner 王巍