 Today, a main application of interest points is to signal points/regions in the image domain that are likely candidates to be useful for "image matching" and "view-based object recognition".For this purpose, several types of corner detectors and blob detectors have been demonstrated to be highly useful in practical applications (see respective articles for references).Blob detectors and corner detectors have also been used as primitives for texture recognition, texture analysis and for constructing 3D models from multiple views of textured objects.