Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video

Abstract The MPEG immersive video (MIV) has been designed to remove the redundancies of multi‐view videos and merge the residuals into two textures and two geometry videos; therefore, four bitstreams and video decoders are required to provide six degrees of freedom (6DoF) in virtual reality (VR) in...

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Autores principales:	Jong‐Beom Jeong, Soonbin Lee, Eun‐Seok Ryu
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/93feaec73d30490db235639f19a2094e
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spelling	oai:doaj.org-article:93feaec73d30490db235639f19a2094e2021-12-03T08:34:31ZSub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video1350-911X0013-519410.1049/ell2.12329https://doaj.org/article/93feaec73d30490db235639f19a2094e2021-12-01T00:00:00Zhttps://doi.org/10.1049/ell2.12329https://doaj.org/toc/0013-5194https://doaj.org/toc/1350-911XAbstract The MPEG immersive video (MIV) has been designed to remove the redundancies of multi‐view videos and merge the residuals into two textures and two geometry videos; therefore, four bitstreams and video decoders are required to provide six degrees of freedom (6DoF) in virtual reality (VR) in MIV. This letter proposes a sub‐bitstream packing method and realisation in tiled streaming for MIV to provide a single bitstream for legacy systems that have a single decoder without an increase in the server‐side storage. The proposed method divided the input videos into tiles in the compressed‐domain to accomplish two goals: (i) generate a merged bitstream using the existing four bitstreams for legacy systems and (ii) improve the quality of an immersive video by disabling the deblocking filter. For a player with one or few numbers of decoders, the extracted tile sub‐streams were merged by the proposed four specific mixed‐quality tiling and packing methods using a motion‐constrained tile set (MCTS), while complying with the high‐efficiency video coding (HEVC) standard. Experimental results demonstrated that the proposed sub‐stream packing method required a single decoder and exhibited 17.40% decoding time and 0.81% bjontegaard‐delta rate (BD‐rate) savings on Y‐PSNR saving compared to the non‐tiled streaming method.Jong‐Beom JeongSoonbin LeeEun‐Seok RyuWileyarticleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENElectronics Letters, Vol 57, Iss 25, Pp 973-976 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Jong‐Beom Jeong Soonbin Lee Eun‐Seok Ryu Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
description	Abstract The MPEG immersive video (MIV) has been designed to remove the redundancies of multi‐view videos and merge the residuals into two textures and two geometry videos; therefore, four bitstreams and video decoders are required to provide six degrees of freedom (6DoF) in virtual reality (VR) in MIV. This letter proposes a sub‐bitstream packing method and realisation in tiled streaming for MIV to provide a single bitstream for legacy systems that have a single decoder without an increase in the server‐side storage. The proposed method divided the input videos into tiles in the compressed‐domain to accomplish two goals: (i) generate a merged bitstream using the existing four bitstreams for legacy systems and (ii) improve the quality of an immersive video by disabling the deblocking filter. For a player with one or few numbers of decoders, the extracted tile sub‐streams were merged by the proposed four specific mixed‐quality tiling and packing methods using a motion‐constrained tile set (MCTS), while complying with the high‐efficiency video coding (HEVC) standard. Experimental results demonstrated that the proposed sub‐stream packing method required a single decoder and exhibited 17.40% decoding time and 0.81% bjontegaard‐delta rate (BD‐rate) savings on Y‐PSNR saving compared to the non‐tiled streaming method.
format	article
author	Jong‐Beom Jeong Soonbin Lee Eun‐Seok Ryu
author_facet	Jong‐Beom Jeong Soonbin Lee Eun‐Seok Ryu
author_sort	Jong‐Beom Jeong
title	Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
title_short	Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
title_full	Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
title_fullStr	Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
title_full_unstemmed	Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
title_sort	sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/93feaec73d30490db235639f19a2094e
work_keys_str_mv	AT jongbeomjeong subbitstreampackingbasedlightweighttiledstreamingfor6degreeoffreedomimmersivevideo AT soonbinlee subbitstreampackingbasedlightweighttiledstreamingfor6degreeoffreedomimmersivevideo AT eunseokryu subbitstreampackingbasedlightweighttiledstreamingfor6degreeoffreedomimmersivevideo
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Sub‐bitstream packing based lightweight tiled streaming for 6 degree of freedom immersive video

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