Implemented an Automatic  keypoint generator for the deformable registration based on the Texture Edge detector.  It provides results visually comparable to the Foerstner Keypoint detector, so it can become a viable alternative to Foerstner.
Advantage is that it is more studied and optimized in FireVoxel.  Eventually quality of the deformable registration would be compared for two or more keypoint algorithms.

Foerstner - Green squares, URAL texture is red dots.