A video-based automatic detection method for falling objects from railway freight cars
A railway freight car, automatic detection technology, applied in the field of video processing and pattern recognition, can solve the problems of destroying the stability of the running part, brake failure, easy to miss detection, etc., to reduce the risk of manual inspection, improve the safety prevention ability, reduce The effect of security incidents
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[0040] With reference to accompanying drawing, a kind of video-based method for automatic detection of railway wagon spills, its moving target detection based on background modeling and target recognition algorithm based on neural network, comprises the steps:
[0041] Step 1 to get the video;
[0042] Use high-speed high-definition network cameras to obtain high-definition video with a resolution of 1280*720 at the railway site, and the central axis of the video is 30 degrees from the direction of the train;
[0043] Step 2 establishes the histogram gradient feature model of the train running part;
[0044] Step a. Collect and mark the walking part samples and non-walking part samples, and all samples are intercepted to a size of 64*64;
[0045] Step b, calculating the histogram gradient feature of each sample;
[0046] The calculation method of the histogram gradient feature is as follows:
[0047] The image horizontal gradient and vertical gradient are calculated as (1) ...
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