Improved visual background extraction method based on blind updating strategy and foreground model
A technology of visual background extraction and foreground model, which is applied in the field of improved visual background extraction based on blind update strategy and foreground model, can solve the problems of time-consuming, undetectable, ghosting, etc., and achieve the effect of improving the accuracy rate
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[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0022] The invention is an improved foreground detection method based on the ViBe method. By adopting a blind update strategy and establishing a foreground model, the problem that slow moving objects are difficult to detect is solved, and the correct detection rate of foreground points is effectively improved while ensuring the real-time performance of the method. The flow chart of the method is as figure 1 As shown, its specific implementation is as follows:
[0023] Step 1: Input the video sequence and read the first frame; use a single frame image to initialize the background model, and use the temporal and spatial similarity characteristics of neighboring pixels to randomly select N b (experimental data N b =20) pixels as the sample points of its model.
[0024] Step 2: Establishment of the foreground model. To be precise, the foreground model sh...
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