Patent ID: 8879628
Filing Date: 2014-11-04
Classification: H04N

Abstract:
1. A method for encoding an input video into a bitstream, the input video comprising image data, the method comprising: a) performing disparity estimation based on reference pictures from a reference picture buffer and an input picture of the input video to obtain disparity parameters; b) performing disparity compensation by applying the disparity parameters obtained from performing disparity estimation to the reference pictures to generate a prediction picture or prediction regions; c) taking a difference between the input picture of the input video and the prediction picture or the prediction regions to provide residual information; d) converting the residual information from a floating point representation to a fixed point representation to provide converted residual information; e) performing transformation and quantization on the converted residual information to obtain processed residual information; and f) performing entropy encoding on the processed residual information to generate the bitstream, wherein the image data comprises fixed point data, further comprising before the performing disparity estimation and disparity compensation: converting the fixed point data from a fixed point representation to a floating point representation, wherein conversion parameters used in the fixed point data converting are signaled to a decoder.