Method for collecting characteristics in telecommunication flow information video detection
A technology of video detection and acquisition method, which is applied in the direction of image communication, color TV parts, TV system parts, etc., and can solve the problems that images are easily affected by the environment, slow processing speed, and poor real-time performance
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[0046] The present invention will be further described below in conjunction with the accompanying drawings.
[0047] With reference to Fig. 1, Fig. 2, a kind of feature acquisition method in the video detection of traffic flow information, this detection system includes camera, signal processor, each pixel processing described below is a series of input video image under fixed camera The sequence is {1, 2, ..., t, ...}, that is, in the t-th frame of the video image, the i-th pixel point X is processed i,t [R i,t , G i,t , B i,t ], where the probability density function of the kth Gaussian distribution is formula (1):
[0048]
[0049] The probability calculation formula of the current pixel point i is formula (2):
[0050] P ( X i , t ) = Σ i = ...
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