Patchlet and pointwise Photometric Stereo

Patchlet/pointwise Photometric Stereo - 2nd complete, concise Matlab demo of 3D surf. reconstruction

This is the 2nd and newer demo (in subject of Photometric Stereo), which consists of few running m-scripts, which have been oryginally written in Matlab environment. It introduces notion of patchlet Photometric Stereo, where linear combination of: a) both the resulted intensities and b) directional parameters of light sources, are taken into account altogether, within moving patchlets of local data on 2D images. However, it would show its value only with the thresholding mechanism. Moreover, 4 sets of the exemplary issued commands, as well as, corresponding png written figures, have been also contained within this bunch of m-scripts (within zip-file). And it all has been aimed for introducing new aspects of algorithm implementations for Photometric Stereo methods, used in 3D surface reconstruction's tasks. Patchlet PStereo could be used, as an improved approach to 3D reconstruction tasks, in strong presence of noises within data sets of 2D intensity images. So far used in the past, initially carried out smoothing of contents of noised 2D intensity images, has poorer performance, than that actually realized with patchlet Photometric Stereo implementation (that's author's opinion on this algorithms, and notions, accordingly to moving patch of locally processed data of intensities within set of 2D images).