INFORMATION PROCESSING DEVICE AND METHOD

WIPO Patent Application WO/2021/010134

A1

The present disclosure relates to an information processing device and method which enable a reduction in coding efficiency to be suppressed. The present invention hierarchizes attribute information about a point cloud which expresses three-dimensional shape objects as a point set, generates a reference relationship of the attribute information between the hierarchies, sub-hierarchizes, in the hierarchy of the generated attribute information, the attribute information about the hierarchy, and generates a reference relationship of attribute information between the sub-hierarchies. The present disclosure can be applied to, for example, an information processing device, an image processing device, an encoding device, a decoding device, an electronic apparatus, an information processing method, a program, etc.

WO/2021/246796	POINT CLOUD DATA TRANSMISSION DEVICE, POINT CLOUD DATA TRANSMISSION METHOD, POINT CLOUD DATA RECEPTION DEVICE, AND POINT CLOUD DATA RECEPTION METHOD
WO/2020/196680	THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
WO/2022/257978	POINT CLOUD CODING METHOD AND APPARATUS, AND POINT CLOUD DECODING METHOD AND APPARATUS

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

PCT/JP2020/025168

January 21, 2021

June 26, 2020

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SONY CORP (JP)

G06T9/40; H04N19/597

WO2017104115A1	2017-06-22
WO2019103009A1	2019-05-31

NISHIO, KOJI ET AL.: "1G-2 A method of information transformation for point sampled models", PROCEEDINGS OF THE 69TH NATIONAL CONVENTION OF IPSJ. INTERFACE, COMPUTER AND HUMAN SOCIETY; MARCH, 6-8, 2007, vol. 69, 6 March 2007 (2007-03-06) - 8 March 2007 (2007-03-08), pages 4 - 4-42, XP009532473
R. MEKURIAK. BLOMP. CESAR., DESIGN, IMPLEMENTATION AND EVALUATION OF A POINT CLOUD CODEC FOR TELE-IMMERSIVE VIDEO
KHALED MAMMOUALEXIS TOURAPISJUNGSUN KIMFABRICE ROBINETVALERY VALENTINYEPING SU: "Lifting Scheme for Lossy Attribute Encoding in TMCl", ISO/IEC JTC1/SC29/WG11 MPEG2018/M42640, April 2018 (2018-04-01)
OHJI NAKAGAMISATORU KUMA: "G-PCC] Spatial scalability support for G-PCC", ISO/IEC JTC1/SC29/WG11 MPEG2019/M47352, March 2019 (2019-03-01)
TOSHIYASU SUGIO: "G-PCC] Reference structure modification on attribute predicting transform in TMC 13", ISO/IEC JTC 1/SC29/WG11 MPEG2018/M46107, January 2019 (2019-01-01)
See also references of EP 3985614A4

NISHIKAWA Takashi et al. (JP)

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