Adaptive Search Range of Template Matching for Plenoptic Video Coding under Microlens Constraints

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2 Scopus citations

Abstract

This paper proposes a fast template matching (TM) based intra prediction for plenoptic video coding. While the conventional TM method has demonstrated itself as a potentially effective coding tool for plenoptic video, it suffers from a huge time complexity of TM search at both encoder and decoder. In this paper, we note correlation among matching pixels arising from the microlens array structure of plenoptic camera, and propose an adaptive search range (ASR) exploiting relationship between the two sizes of prediction unit and microlens. The experimental results show that our method can reduce encoding time by about 88% and 73% compared to the conventional TM method in the AI-Main and RA-Main conditions, respectively, with acceptable coding loss.

Original languageEnglish
Title of host publicationBMSB 2023 - IEEE International Symposium on Broadband Multimedia Systems and Broadcasting 2023
Subtitle of host publicationMultimedia Communications for the Future
PublisherIEEE Computer Society
ISBN (Electronic)9798350321524
DOIs
StatePublished - 2023
Externally publishedYes
Event2023 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2023 - Beijing, China
Duration: 14 Jun 202316 Jun 2023

Publication series

NameIEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB
Volume2023-June
ISSN (Print)2155-5044
ISSN (Electronic)2155-5052

Conference

Conference2023 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2023
Country/TerritoryChina
CityBeijing
Period14/06/2316/06/23

Keywords

  • adaptive search range
  • Light field
  • plenoptic coding
  • template matching

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