A research on stereo matching algorithm for underwater image

To realize the accuracy and stability of the underwater binocular image matching, this paper design a stereo matching algorithm based on Harris corner detection. Firstly, apply median and homomorphic filtering for underwater stereo image preprocessing to minimize noise and enhance image contrast. Secondly, apply the corner feature extraction and matching method based on Harris for obtaining the characteristic information of underwater target. And then apply the constraint condition to eliminate the error matched points, so as to improve the underwater image matching stability. Finally, the experiments verify the algorithm proposed in this paper, and the experimental results have shown the effectiveness of this algorithm.