Discrete cosine basis oriented homogeneous motion discovery for 360-degree video coding

Research output: Book chapter/Published conference paperConference paperpeer-review

Abstract

Motion modeling plays a central role in video compression. This role is even more critical in 360-degree video sequences given the associated enormous amount of data that need be stored and communicated. While the translational motion model employed by modern video coding standards, such as HEVC, is sufficient in most cases, using higher order models is beneficial; for this reason, the upcoming video coding standard, VVC, employs a 4-parameter affine model. Discrete cosine basis has the ability to efficiently model complex motion fields. In this work, we employ discrete cosine basis to model the underlying motion field in 360-degree video frames. In particular, we discover discrete cosine basis oriented homogeneous motion regions over the current frame. Then employ these estimated motion models, guided by their associated applicability regions, to form a prediction for the target frame. Experimental results show a delta bit rate of can be achieved on 360-degree test sequences, over conventional HEVC, if this predicted frame is used as an additional reference frame.

Original languageEnglish
Title of host publicationImage and Video Technology - 9th Pacific-Rim Symposium, PSIVT 2019, Proceedings
EditorsChilwoo Lee, Zhixun Su, Akihiro Sugimoto
PublisherSpringer
Pages106-115
Number of pages10
ISBN (Print)9783030348786
DOIs
Publication statusPublished - 01 Jan 2019
Event9th Pacific-Rim Symposium on Image and Video Technology, PSIVT 2019 - Charles Sturt University Study Centre, Sydney, Australia
Duration: 18 Nov 201922 Nov 2019
http://www.psivt.org/psivt2019/
http://www.psivt.org/psivt2019/program.html (program)

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume11854 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference9th Pacific-Rim Symposium on Image and Video Technology, PSIVT 2019
CountryAustralia
CitySydney
Period18/11/1922/11/19
Internet address

Fingerprint Dive into the research topics of 'Discrete cosine basis oriented homogeneous motion discovery for 360-degree video coding'. Together they form a unique fingerprint.

Cite this