IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

WIPO Patent Application WO/2020/066680

A1

The present disclosure pertains to an image processing device and an image processing method that allow decoding of octree encoded data in various processing orders. An octree corresponding to point cloud data is encoded by initializing a context for each hierarchical layer of the octree. In addition, a breadth-first order or a depth-first order is selected as a decoding order of the octree encoded data corresponding to the point cloud data, and the encoded data is decoded in the selected decoding order. The present disclosure is applicable to, for example, an image processing device, an electronic device, an image processing method, or a program.

JP7322020	Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device
WO/2022/159145	METHOD AND APPARATUS FOR POINT CLOUD CODING
JP7263550	Method and apparatus for coding point cloud information, and computer program

YANO KOJI (JP)
KATO TSUYOSHI (JP)
KUMA SATORU (JP)
NAKAGAMI OHJI (JP)

PCT/JP2019/036031

April 02, 2020

September 13, 2019

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SONY CORP (JP)

G06T9/40; H03M7/40

JP2013539929A

2013-10-28

GARCIA DIOGO C.; DE QUEIROZ RICARDO L.: "Context-based octree coding for point-cloud video", 2017 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), 20 September 2017 (2017-09-20), pages 1412 - 1416, XP033322807, ISSN: 2381-8549, DOI: 10.1109/ICIP.2017.8296514
KOJI NISHIO , YUSUKE TAKEBAYASI , YUJI TESHIMA , TAKAYUKI KANAYA , KEN-ICHI KOBORI : "Information Transformation for Point Cloud", JOURNAL OF INFORMATION SCIENCE AND TECHNOLOGY FORUM - FIT2008, vol. 7, no. 3, 20 August 2008 (2008-08-20), pages 227 - 228, XP009512861
R. MEKURIAK. BLOMP. CESAR, DESIGN, IMPLEMENTATION AND EVALUATION OF A POINT CLOUD CODEC FOR TELE-IMMERSIVE VIDEO
OHJI NAKAGAMIPHIL CHOUMAJA KRIVOKUCAKHALED MAMMOUROBERT COHENVLADYSLAV ZAKHARCHENKOGAELLE MARTIN-COCHER: "Second Working Draft for PCC Categories 1, 3", ISO/IEC JTC1/SC29/WG11, MPEG 2018/N17533, April 2018 (2018-04-01)
"Advanced video coding for generic audiovisual services", TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (INTERNATIONAL TELECOMMUNICATION UNION, vol. H.264, April 2017 (2017-04-01)
"High efficiency video coding", TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (INTERNATIONAL TELECOMMUNICATION UNION, vol. H.265, December 2016 (2016-12-01)
JIANLE CHENELENA ALSHINAGARY J. SULLIVANJENS-RAINERJILL BOYCE: "Algorithm Description of Joint Exploration Test Model 4", JVET-G1001 V1, JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 7TH MEETING: TORINO, IT, 13 July 2017 (2017-07-13)
See also references of EP 3859679A4

NISHIKAWA Takashi et al. (JP)

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