Deakin University
Browse

File(s) under permanent embargo

Adaptive search range by neighbouring depth intensity weighted sum for HEVC texture coding

journal contribution
posted on 2016-06-09, 00:00 authored by Glory LeeGlory Lee, W-C Siu, Y-L Chan
High-efficiency video coding (HEVC) outperforms H.264/AVC by providing a bitrate reduction of about 50% while having almost the same perceptual quality. It adopts more flexible partitioning in motion estimation (ME) which gains higher coding efficiency at a cost of increased coding complexity. Depth maps in the emerging multi-view plus depth videos are exploited to adjust the search range in ME for HEVC complexity reduction. With the aid of depth intensity variations among neighbouring blocks, the proposed algorithm derives weights to the neighbouring blocks and establishes an adaptive search range according to the weighted sum of the motion vectors from the neighbouring blocks. Compared with the fast test zone (TZS) search in HEVC, the proposed algorithm saves 65% coding time in ME on average with insignificant rate-distortion degradation.

History

Journal

Electronics Letters

Volume

52

Pagination

1018-1020

Location

Stevenage, Eng.

ISSN

0013-5194

eISSN

1350-911X

Language

eng

Publication classification

C2.1 Other contribution to refereed journal

Copyright notice

2016, Institution of Engineering and Technology

Issue

12

Publisher

Institution of Engineering and Technology