Does MATLAB's disparity function (semiglobal) use the Birchfield-Tomasi pixel cost?

Hi,

The documentation states that disparities are calculated by matching SAD costs, however the code implementing it uses cv::stereosgbm which in turn uses the Birchfield-Tomasi matching cost to match (not the SAD values directly). What is true, and is sgbm simply OpenCV's implementation only with some fixed parameters?

Answer 1

[Manish M]

You are correct, it uses cv::stereosgbm which uses the Birchfield-Tomasi matching cost.