An effective scaleadaptive phasebased stereo matching algorithm is presented in this paper.Phasebased stereo matching algorithms are the stateoftheart stereo techniques

which have the advantage of high accuracy

good robustness and parallel computing structure.As to the usual phase wraparound problem in phasebased method

coarsetofine strategy is often utilized.But because of the instability of the phase signal in some regions

coarsetofine strategy sometimes fails.Scaleadaptive method may be a good solution.We put forward a kind of filter frequency selective constructing rule which is based on correlation of filter’s frequency response integration

and took a prime sequence as Gabor filter bank’s wavelengths.As a result

we realized a novel effective scaleadaptive algorithm

which could effectively achieve high accuracy and wide disparity range.