Title:
INFORMATION PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/004377
Kind Code:
A1
Abstract:
The present disclosure pertains to an information processing device and a method that enable easier control of the information volume of point cloud data. The invention includes: forming a reference structure of geometric data in point cloud encoding, the reference structure being hierarchized by groups obtained by sorting points of a point cloud expressing a three-dimensionally shaped object as a collection of points; deriving a geometric data prediction value for each of the points on the basis of the formed reference structure; deriving a prediction residual, which is the difference between the geometric data and the prediction value; and encoding the derived geometric data prediction residual of each of the points. 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 or the like.
Inventors:
KUMA SATORU (JP)
YASUDA HIROYUKI (JP)
NAKAGAMI OHJI (JP)
YASUDA HIROYUKI (JP)
NAKAGAMI OHJI (JP)
Application Number:
PCT/JP2021/022800
Publication Date:
January 06, 2022
Filing Date:
June 16, 2021
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
H04N19/50; G06T9/00; H04N19/597
Domestic Patent References:
| WO2019240286A1 | 2019-12-19 | |||
| WO2019069711A1 | 2019-04-11 |
Foreign References:
| JP2000509150A | 2000-07-18 |
Other References:
R. MEKURIA, STUDENT MEMBER IEEE
K. BLOMP. CESAR.: "Design, Implementation and Evaluation of a Point Cloud Codec for Tele-Immersive Video", IEEE
ZHENZHEN GAODAVID FLYNNALEXIS TOURAPISKHALED MAMMOU: "G-PCC] [New proposal] Predictive Geometry Coding", ISO/IEC JTC1/SC29/WG11 MPEG2019/M51012, October 2019 (2019-10-01)
See also references of EP 4174780A4
K. BLOMP. CESAR.: "Design, Implementation and Evaluation of a Point Cloud Codec for Tele-Immersive Video", IEEE
ZHENZHEN GAODAVID FLYNNALEXIS TOURAPISKHALED MAMMOU: "G-PCC] [New proposal] Predictive Geometry Coding", ISO/IEC JTC1/SC29/WG11 MPEG2019/M51012, October 2019 (2019-10-01)
See also references of EP 4174780A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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