QUALCOMM Incorporated
EQUATION-BASED RICE PARAMETER DERIVATION FOR REGULAR TRANSFORM COEFFICIENTS IN VIDEO CODING

Abstract:

An example method of decoding video data includes determining a sum of absolute coefficient values of neighboring transform coefficients of a current transform coefficient of a current block of video data; determining, via performing arithmetic operations on the sum of absolute coefficient values and without using a look-up table that maps between sums of absolute coefficient values and rice parameters, a rice parameter for the current transform coefficient; decoding, using rice-golomb coding and using the determined rice parameter, a value of a remainder of the current transform coefficient; and reconstructing, based on the value of the remainder of the current transform coefficient, the current block of video data.