Dual-mode masked man event automatic detection method based on video characteristic statistics
A video feature, automatic detection technology, applied in computer parts, character and pattern recognition, computing and other directions, can solve the problems of insufficient processing speed, inability to meet real-time monitoring, low recognition rate, etc., to achieve waste of human resources, high compatibility , the calculation method is simple
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[0038] The implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the implementation of the present invention is not limited thereto. If there are any processes that are not specifically described in detail below, those skilled in the art can refer to the prior art.
[0039] Such as figure 1 , the main flow of the dual-mode masked person event automatic detection method based on video feature statistics includes the following steps:
[0040] (a) read in the video file, scale the video image, and convert it to a grayscale image;
[0041] (b) obtaining a moving object foreground image;
[0042] (c) Find the largest rectangular outline of the moving object by calculating the position of the coordinates of the midpoint of the outline and the overlap ratio with the moving foreground of the previous frame;
[0043] (d) Detecting the movement process obtained in step (c), obtaining the head position information for...
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