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

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Storm Westlie 2019-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/463919-does-matlab-s-disparity-function-semiglobal-use-the-birchfield-tomasi-pixel-cost

回答： Manish M 2019-6-23

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?

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Manish M 2019-6-23

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

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