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1. (WO2017155864) APPARATUS AND METHOD FOR VECTOR-BASED ENTROPY CODING FOR DISPLAY STREAM COMPRESSION

Pub. No.:    WO/2017/155864    International Application No.:    PCT/US2017/020897
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 07 00:59:59 CET 2017
IPC: H04N 19/91
Applicants: QUALCOMM INCORPORATED
Inventors: THIRUMALAI, Vijayaraghavan
JACOBSON, Natan Haim
JOSHI, Rajan Laxman
Title: APPARATUS AND METHOD FOR VECTOR-BASED ENTROPY CODING FOR DISPLAY STREAM COMPRESSION
Abstract:
Methods and apparatus for coding video information having a plurality of video samples are disclosed. Video samples are partitioned into groups for transmission within a single clock cycle, wherein the samples are associated with a bit length B, and a group having a group size K. The sample group is mapped to a code number and coded to form a vector-based code comprising a first portion identifying a type of look-up-table used to performing the mapping, and a second portion representing the samples of the group. The look-up-table may be constructed based upon occurrence probabilities of different sample groups. In addition, different types of look-up-tables may be used for different B and K values.