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1. (WO2017155334) VIDEO CODING METHOD AND APPARATUS

Pub. No.:    WO/2017/155334    International Application No.:    PCT/KR2017/002578
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: H04N 19/593
H04N 19/105
H04N 19/82
H04N 19/11
H04N 19/124
H04N 19/615
H04N 19/91
H04N 19/527
H04N 19/513
H04N 19/543
Applicants: DIGITALINSIGHTS INC.
디지털인사이트 주식회사
KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
광운대학교 산학협력단
Inventors: AHN, Yongjo
안용조
SIM, Donggyu
심동규
RYU, Hochan
류호찬
PARK, Seanae
박시내
LIM, Woong
임웅
Title: VIDEO CODING METHOD AND APPARATUS
Abstract:
The present invention relates to the encoding and decoding of a quantization coefficient group among video compression techniques and, more particularly, to a method for performing encoding and decoding by using a variable-sized quantization coefficient group. A video decoding method, according to the present invention, comprises the steps of: obtaining information of a quantization coefficient group for current inverse quantization; obtaining quantization coefficients through entropy decoding on the current quantization coefficient group; obtaining transform coefficients through an inverse quantization process for the obtained quantization coefficients; and obtaining differential signals through an inverse transform process for the obtained transform coefficients.