Patent ID: 7719684

Claim:
An image processing method, comprising; inputting a sequence of angular-position-dithered frames of data, each frame consisting of under-sampled multi-polarization images; estimating pixel shifts for each of the angular-position-dithered frames relative to the position of the first frame of the sequence of frames; aligning and up-sampling the current frame for each polarization image to produce over-sampled data in a reference frame defined by the first frame of the sequence, wherein the aligning and up-sampling steps include: computing a registration shift ΔX, ΔY, for each polarization channel that is the sum of a fixed and known polarization-channel registration offset and the current frame's estimated pixel shifts due to dither; interpolating and up-sampling the current frame for each polarization channel using registration shift ΔX, ΔY to generate pixel data that is over-sampled and registered to the reference frame; integrating the registered, over-sampled images for each polarization channel for the sequence of frames; and outputting features formed by combining the polarization channels, pixel-by-pixel, to form an image of polarization features.