Patent ID: 8619881
Filing Date: 2013-12-31
Classification: H04N

Abstract:
1. A computer-implemented method, comprising: forward transforming a set of co-located blocks corresponding to plural matched frames, wherein forward transforming the co-located blocks comprises determining a step size for processing pixels within the matched frames, the step size being correlated with a quantity of the pixels in each block of the matched frames, wherein the plural matched frames are determined by frame matching, and wherein frame matching comprises collapsing a predetermined number of frames into a summations frame FSUM, wherein FSUM computing a difference measure for a subset of coefficients between a set of transformed blocks and a reference block, the computation in a two-dimensional (2D) transform domain; and selectively thresholding, in accordance with a temporal mode, one or more of the co-located transformed blocks based on the number of transformed blocks having a difference measure below a predetermined threshold.