AVS Exponential-Golomb Code Algorithm
Huang Min-qi · Jisuanji gongcheng · 2011
The exponential-Golomb code is a important part of entropy encoding in AVS video compression standard.This paper investigates the characteristics,encoding and decoding algorithm of exponential-Golomb code,and presents a new algorithm for Exponential-Golomb encoding and decoding according to the mathematic relation between binary value of exponential-Golomb code.Especially in exponential-Golomb decoding,the algorithm discards the idea of reading and judgement bit-by-bit,uses the method of 32 bit reading and given formula.Experimental result shows that the exponential-Golomb code algorithm shortens the encoding time by about 10% than the algorithm applied in AVS reference software,and shortens the decoding time by about 30% than the algorithm applied in AVS reference software.