Standard-Compliant HEVC Screen Content Coding for Raw Light Field Image Coding

Sik Ho Tsang, Yui Lam Chan, Wei Kuang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Intra block copy (IBC) in screen content coding (SCC) increases the coding efficiency of screen content (SC) by finding the repeating patterns within the same frame. A raw light field (LF) image contains plentiful repeating patterns since each microlens is capturing the same scene. SCC can be an efficient encoder for LF image compression. Therefore, first, we propose a new LF coding (LFC) model using SCC to encode LF images based on LF image characteristics. Second, a fast IBC search, which is specially designed for light field images, is proposed to reduce the encoder complexity. Experimental results show that our LFC model further improves the coding efficiency of SCC on LF images by 4.87% on average and up to 10.81% bitrate reduction. With our proposed LFC model, the encoded bitstreams are complaint to the SCC standard with even faster decoding time which is user friendly.

Original languageEnglish
Title of host publication2019, 13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728121949
DOIs
Publication statusPublished - 16 Dec 2019
Event13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Gold Coast, Australia
Duration: 16 Dec 201918 Dec 2019

Publication series

Name2019, 13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Proceedings

Conference

Conference13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019
CountryAustralia
CityGold Coast
Period16/12/1918/12/19

Keywords

  • HEVC
  • intra block copy
  • light field
  • screen content coding
  • video coding

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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