Theme mining and behavior analysis method for video moving target
A moving target and behavior analysis technology, applied in the field of image processing, can solve the problem of inability to accurately describe the key summary information such as the target's moving behavior, and achieve the effect of accurate capture
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[0058]The first embodiment is a topic mining and behavior analysis method for video moving targets, such asfigure 1 As shown, it includes the following steps:
[0059]S1) Obtaining a video frame sequence and extracting the feature matrix Y of the video frame sequence includes the following steps:
[0060]S11) Obtain the video frame sequence I(x,y,t) containing the motion of the video moving target, and divide the video frame sequence I(x,y,t) into N video frame segments, where x and y respectively represent the spatial dimensions X coordinate and y coordinate, t represents time;
[0061]S12) Perform Gaussian convolution on the video frame sequence I(x,y,t) to obtain the Gaussian convolution result of the video frame sequence I(x,y,t)Where σ2,τ2Are the variances of the spatial and temporal dimensions of the video frame sequence I(x,y,t), f(·) is the mapping function that maps the video frame sequence I(x,y,t) to the corresponding pixel in the image sequence ;
[0062]S13) Calculate the three-dim...
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