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A video condensing and video technology, which is applied in the field of video processing, can solve the problem of inability to monitor video video condensing, and achieve the effect of shortening the review and playback time and saving storage space.
Active Publication Date: 2015-12-09
NETPOSA TECH
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[0004] However, for places where there are many people and people are constantly moving, such as squares or subways, almost every video frame in the monitoring video of these places contains moving targets, so the monitoring video of these places cannot be effectively videoed by the above-mentioned motion detection method. concentrate
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Embodiment 1
[0063] see figure 1 , an embodiment of the present invention provides a video concentration method. The method specifically includes the following steps:
[0064] Step 101: Obtain the video to be concentrated, analyze the video to be concentrated to obtain an analysis result, the analysis result includes the real-time number of people corresponding to the video frame, the movement speed of the crowd, and the degree of consistency of the movement of the crowd;
[0065] At present, cameras are installed in public places such as squares, subways, stations, banks or shopping malls, and the cameras shoot these places in real time to obtain surveillance videos of these places. When accidents or crimes occur in these occasions, surveillance video can provide clues for accident handling and case detection.
[0066] The above-mentioned video to be concentrated may be a surveillance video of the above-mentioned occasion captured by the camera, or may be a real-time video of the above-...
Embodiment 2
[0099] see Figure 2A An embodiment of the present invention provides a video concentrating device, which is used to implement the video concentrating method provided in Embodiment 1 above. Specifically, the device includes:
[0100] The acquisition module 201 is configured to acquire the video to be concentrated. The video to be condensed can be the surveillance video of the above-mentioned occasion captured by the camera, or the real-time video of the above-mentioned occasion captured by the camera.
[0101] The analysis module 202 is used to analyze the video to be concentrated to obtain an analysis result, the analysis result includes the real-time number of people corresponding to the video frame, the movement speed of the crowd, and the degree of consistency of the movement of the crowd.
[0102] The crowd movement speed included in the analysis results is relative, in units of pixels, and the consistency of crowd movement is mainly used to detect abnormal single movem...
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Abstract
The invention provides a method and a device for video concentration. The method comprises the following steps of obtaining a to-be-concentrated video and analyzing the to-be-concentrated video to obtain an analysis result, wherein the analysis result includes real-time number of people, kinematic velocity of crowd and consistent degree of movement of the crowd, which are corresponding to a video frame; determining a video fragment which needs to keep from the to-be-concentrated video according to the analysis result; and carrying out video coding on the video fragment which needs to keep to obtain concentration video data corresponding to the to-be-concentrated video. According to the method and the device, the real-time number of people, the kinematic velocity of the crowd and the consistent degree of movement of the crowd, which are corresponding to the video frame are obtained through a crowd analysis algorithm, and video concentration process is implemented according to the obtained relevant parameters of the crowd, so that the requirements for occasions with many people and continuous human movement, such as squares or metros, are met, the effective video concentration is carried out on monitoring videos in the occasions, a storage space needed for storing the monitoring videos in the occasions is saved, and the retrieval and playing time for the monitoring videos in the occasions is greatly shortened.
Description
technical field [0001] The present invention relates to the technical field of video processing, in particular to a video concentration method and device. Background technique [0002] Video surveillance system has important application value in social management. Cameras are used to monitor in public places. The cameras shoot a large number of surveillance videos every day, but there are not many valuable video clips. In order to save the storage space required for surveillance videos, it is necessary to condense the surveillance videos to remove the value of the surveillance videos. Low video clips. [0003] Currently, the prior art provides a video concentration method, which includes: processing the video frames of the surveillance video by means of motion detection, determining the video frames containing the moving objects, and determining the video frames containing the moving objects as valuable video frames, keep these valuable video frames, and remove other video...
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