Edge aware commonality modeling based reference frame for 360 degree video coding

Ashek Ahmmed, Mark Pickering, Andrew Lambert, Manoranjan Paul

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

Abstract

Video coding algorithms tries to model the significant commonality that exists within a video sequence. This role is even more critical in 360-degree video sequences given the associated enormous amount of data that need be stored and communicated. Moreover, in such sequences the captured video signal from omnidirectional cameras are projected onto a plane; hence they exhibit different characteristics compared to traditional video frames. Therefore the conventional block-based and translational motion modeling approach employed by modern video coding standards, such as HEVC, may not provide an efficient compression of 360-degree video data. The edge position difference (EPD) measure based motion modeling (EPD-MM) has shown good motion compensation capabilities for traditional video sequences. The EPD-MM technique is underpinned by the fact that from one frame to the next one, edges map to edges and such mapping can be captured by an appropriate motion model. Since the 360-degree frames contain significant edge information, in this paper, for motion compensation an edge aware commonality modeling technique is adopted. In particular, the EPD-MM based motion compensated prediction of the current 360-degree frame is generated using the already coded reference frame. Experimental results show that if this predicted frame is used as an additional reference frame, bit rate savings can be obtained over an anchor HEVC encoder.

Original languageEnglish
Title of host publication2021 Digital Image Computing: Techniques and Applications (DICTA)
EditorsJun Zhou, Olivier Salvado, Ferdous Sohel, Paulo Vinicius K. Borges, Shilin Wang
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781665417099
DOIs
Publication statusPublished - 23 Dec 2021
Event2021 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2021 - Hilton Surfers Paradise, Gold Coast, Australia
Duration: 29 Nov 202101 Dec 2021
http://dicta2021.dictaconference.org/#:~:text=DICTA%202021%20will%20be%20held,floors%20above%20the%20Gold%20Coast. (Conference website)

Publication series

NameDICTA 2021 - 2021 International Conference on Digital Image Computing: Techniques and Applications

Conference

Conference2021 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2021
Country/TerritoryAustralia
CityGold Coast
Period29/11/2101/12/21
OtherThe International Conference on Digital Image Computing: Techniques and Applications (DICTA) is the main Australian Conference on computer vision, image processing, pattern recognition, and related areas. DICTA was established in 1991 as the premier conference of the Australian Pattern Recognition Society (APRS).
Internet address

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