My problem is about tangent plane. I have an image (m by n). I obtain surface normal vector using machine learning methods. Then i would like to obtain tangent plane for this surface normal.
To imagine my problem, you can look this paper; Surface Normals in the Wild. In this paper, authors find surface normal and draw/find virtual tangent plane around this point (Figure 4 in above paper).
For this problem, i have really no idea. Any tips or starter idea will be acceptable.