Iterative diffusion based stereo matching method for small baseline

A method based on iterative diffusion was proposed to solve the central equation of correlation in small baseline stereovision for Adhesion phenomenon.This method firstly estimated the error level of integer disparity in the practical stereo matching system with heuristic information;secondly,an iterative method for the choice of regulation parameter was designed according to Morazov principle to be regulation of the objective function;thirdly,the iterative diffusion equation was obtained by lagged diffusivity fixed point iteration;finally,the equation was solved iteratively by conjugate gradient method.The experimental results show that this method reduces the "adhesion phenomenon" in the small baseline stereovision and the accuracy of its resulting disparity map is more than 95% and it has sub-pixel accuracy better than 1/10.