Title:
INFORMATION PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/002214
Kind Code:
A1
Abstract:
The present disclosure pertains to an information processing device and a method which enable to suppress a decrease in encoding efficiency. The information processing device is provided for processing attribute information on each point of a point cloud in which an object having a three-dimensional shape is expressed as a set of points. From among points categorized into predicted points and reference points, a difference value between a predicted value of attribute information on the predicted points and the attribute information on the predicted points is derived, the predicted points being derived by using attribute information on the reference points. In the layering of the attribute information by recursively repeating the derivation for the reference points, a first level is layered by using a first layering method and a second level different from the first level is layered by using a second layering method different from the first layering method. The present disclosure is applicable, for example, to information processing devices, image processing devices, encoding devices, decoding devices, electronic devices, information processing methods, programs, or the like.
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Inventors:
KUMA SATORU (JP)
NAKAGAMI OHJI (JP)
YANO KOJI (JP)
YASUDA HIROYUKI (JP)
KATO TSUYOSHI (JP)
NAKAGAMI OHJI (JP)
YANO KOJI (JP)
YASUDA HIROYUKI (JP)
KATO TSUYOSHI (JP)
Application Number:
PCT/JP2020/023989
Publication Date:
January 07, 2021
Filing Date:
June 18, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G06T9/00; H04N19/30; H04N19/597; H04N19/70
Domestic Patent References:
| WO2019103009A1 | 2019-05-31 | |||
| WO2020013249A1 | 2020-01-16 |
Other References:
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 4-41 - 4-42, XP009532473
R. MEKURIASTUDENT MEMBER IEEEK. BLOMP. CESAR: "Design, Implementation and Evaluation of a Point Cloud Codec for Tele-Immersive Video", MEMBER, IEEE, Retrieved from the Internet
KHALED MAMMOUALEXIS TOURAPISJUNGSUN KIMFABRICE ROBINETVALERY VALENTINYEPING SU: "Lifting Scheme for Lossy Attribute Encoding in TMC 1", 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)
JIANLE CHENELENA ALSHINAGARY J. SULLIVANJENS-RAINERJILL BOYCE: "Algorithm Description of Joint Exploration Test Model 4", JVET-GL001_VL, 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 3996045A4
R. MEKURIASTUDENT MEMBER IEEEK. BLOMP. CESAR: "Design, Implementation and Evaluation of a Point Cloud Codec for Tele-Immersive Video", MEMBER, IEEE, Retrieved from the Internet
KHALED MAMMOUALEXIS TOURAPISJUNGSUN KIMFABRICE ROBINETVALERY VALENTINYEPING SU: "Lifting Scheme for Lossy Attribute Encoding in TMC 1", 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)
JIANLE CHENELENA ALSHINAGARY J. SULLIVANJENS-RAINERJILL BOYCE: "Algorithm Description of Joint Exploration Test Model 4", JVET-GL001_VL, 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 3996045A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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