Patent ID: 8335811
Filing Date: 2012-12-18
Classification: G06F

Abstract:
1. A method for signal processing, the method comprising: in a video processing device comprising one or more circuits that are operable to process video data: receiving a plurality of a first domain samples and a specified reconstruction accuracy and/or fidelity for a two-dimensional (2D) transformation; and generating a plurality of a second domain samples from said 2D transformation of said received plurality of first domain samples based on a transform matrix, wherein each transform coefficient of said transform matrix comprises an integer-bit value determined from a corresponding coefficient of a reference transform matrix, said determined integer-bit values selected based on: said specified reconstruction accuracy and/or fidelity for said 2D transformation; and criteria determined from separating said 2D transformation into first and second one-dimensional (1D) transformations, said criteria ensuring that a mismatch between a 2D transformation using said transform matrix and a 2D transformation using the reference transform matrix is upper-bounded by 1.