Traffic flow information perception method based on contour and local characteristic point and system thereof
A local feature and information perception technology, applied in the field of traffic information flow perception, can solve the problems of inability to adapt to complex and changeable scenes, low detection accuracy, etc., to achieve the effect of convenient use and improved execution efficiency
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[0033] Such as figure 1 As shown, the traffic flow information perception method based on contours and local feature points includes the following steps:
[0034] Remotely configure the system parameters of the traffic flow information perception system, including the ROI of the video analysis and the conversion relationship F between the pixel distance on the video image and the actual road space distance;
[0035] Perform inter-frame difference operation on the video signal, binarize the inter-frame difference image, and then perform morphological filtering, and on this basis, locate the position of each vehicle;
[0036] According to the location information of the vehicle, each vehicle is tracked separately, and the state storage structure Memory is designed to record the dynamic state of each vehicle;
[0037] Evaluate the tracking results;
[0038] According to the evaluation result, if the tracking result is not good enough, extract the feature points of the vehicle that failed t...
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