Patent ID: 9743111
Date: 2017-08-22
CPC Classifications: H03M,H04N

Claim:
1. A method for decoding transform coefficients of a block of a coded image, comprising: a) receiving a bitstream representing a coded image, the bitstream comprising: (i) a plurality of flags indicating whether a transform coefficient is greater than a particular value and (ii) a first syntax element, wherein a combination of the plurality of flags and the first syntax element indicates the magnitude of the transform coefficient; b) decoding a set of bits of the bistream associated with the first syntax element using an arithmetic decoding to derive binary data; c) deriving a Rice parameter associated with the first syntax element; d) receiving an indicator from the bitstream, wherein the indicator is a flag that is different from the Rice parameter; e) determining, based on the indicator, whether a first code or a second code is to be used in combination with a Rice code corresponding to the Rice parameter; and f) deriving the magnitude of the transform coefficient based on the binary data and a combination of the Rice code and the first or second code determined based on the indicator,