Estimating the Homography Matrix with the Direct Linear Transform (DLT)

I tried to implement the homography matrix by myself. The algorithm is roughly like this:


1. Get at least 4 point correspondences between two views
2. For each point correspondence, setup a partial **A\_i** matrix of the form 2x9
3. Assemble **A** matrix to the form of 8x9 or 2nx9
4. Apply Singular Value Decomposition to the **A** matrix, to get **U**, **D** and **V** transpose
5. Assuming the entries in **D** are sorted in descending order, the last column …

computervision homography