IMAGE TRANSFORM ZERO COEFFICIENT SELECTION AND ZERO-SKIP TRANSMISSION FOR ARBITRARY SHAPE TRANSFORM CODING

摘要

An apparatus comprising a processor configured to generate a rectangular block of transform coefficients comprising applying a discrete separable unitary transform to a rectangular boundary block of a video object, wherein the boundary block comprises at least one masked pixel and at least one unmasked pixel, wherein the transform coefficients comprise a number of zero-valued transform coefficients greater than or equal to a number of masked pixels, wherein the transform coefficients comprise at least one non-zero-valued transform coefficient; and generate an encoded output comprising compressing only the non-zero-valued transform coefficients.