Building Computer Vision Projects with OpenCV 4 and C++

Stereo reconstruction and SfM

In SfM, we would like to recover both the poses of cameras and the position of 3D feature points. We have just seen how simple 2D pair matches of points can help us estimate the essential matrix and thus encode the rigid geometric relationship between views: . The essential matrix can be decomposed into  and  by way of SVD, and having found  and , we proceed with finding the 3D points and fulfilling the SfM task for ...