1. A method for interest point descriptor and signature generation, the method comprising: generating refined interest point parameter vectors, wherein each vector contains a set (s x , s y , x, y, peak polarity); drawing a rectangular box encompassing Ns x ×Ms y pixels and centered at an interest point (x, y) location associated with a set (s x , s y , x, y, peak polarity); and determining a multi-dimensional descriptor and a multi-dimensional signature based on pixels in the rectangular box.