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This paper proposed a new algorithm of Coupling from the Past (CFTP) with directional threshold. CFTP, also called Exact Sampling, established in 1996 by Propp and Wilson, aimed that it would eliminate the need to compute Markov chain convergence rate for the quality control. CFTP was used in mixture models of Monte Carlo and worked well in low computation complexity problems. The Coupling from the...
A novel algorithm of three-layer probability model based on synchronous detection lines is proposed to solve the problems of background updating and target tracking. Firstly, the state of each pixel point on the same synchronous detection line is judged in the probability model of pixel points. Secondly, the state of each synchronous detection line is estimated by maximum likelihood estimation so...
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