Title:
INFORMATION PROCESSING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/189296
Kind Code:
A1
Abstract:
The present disclosure pertains to an image processing device and method that make it possible to facilitate scalable decoding of attribute information. A process for classifying, with respect to attribute information of a point cloud that represents a three-dimensionally shaped object, points of the point cloud into predictive points that preserve a difference value between the attribute information and a predictive value and reference points of which the attribute information is referenced when the predictive value is derived, is recursively repeated on the reference points to thereby hierarchize the attribute information. At the time of this hierarchization, the predictive points are selected so that points are present also in a voxel of an immediately higher hierarchy to which belongs a voxel in which points of the current hierarchy are present. The present disclosure is applicable, for example, to information processing devices, image processing devices, encoding and decoding devices, electronic devices, information processing methods, programs, or the like.
Inventors:
KATO TSUYOSHI (JP)
KUMA SATORU (JP)
NAKAGAMI OHJI (JP)
YASUDA HIROYUKI (JP)
YANO KOJI (JP)
KUMA SATORU (JP)
NAKAGAMI OHJI (JP)
YASUDA HIROYUKI (JP)
YANO KOJI (JP)
Application Number:
PCT/JP2020/009331
Publication Date:
September 24, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G06T17/00; G06T9/40; H04N1/41; H04N19/20; H04N19/30; H04N19/597; H04N19/85
Foreign References:
| JP2018101404A | 2018-06-28 | |||
| US20190080483A1 | 2019-03-14 |
Other References:
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 TMC1, April 2018 (2018-04-01)
JIANLE CHENELENA ALSHINAGARY JSULLIVAN, JENS-RAINERJILL BOYCE, ALGORITHM DESCRIPTION OF JOINT EXPLORATION TEST MODEL 4, 13 June 2017 (2017-06-13)
SEBASTIEN LASSERREDAVID FLYNN, PCC] INFERENCE OF A MODE USING POINT LOCATION DIRECT CODING IN TMC3
See also references of EP 3929881A4
KHALED MAMMOUALEXIS TOURAPISJUNGSUN KIMFABRICE ROBINETVALERY VALENTINYEPING SU, LIFTING SCHEME FOR LOSSY ATTRIBUTE ENCODING IN TMC1, April 2018 (2018-04-01)
JIANLE CHENELENA ALSHINAGARY JSULLIVAN, JENS-RAINERJILL BOYCE, ALGORITHM DESCRIPTION OF JOINT EXPLORATION TEST MODEL 4, 13 June 2017 (2017-06-13)
SEBASTIEN LASSERREDAVID FLYNN, PCC] INFERENCE OF A MODE USING POINT LOCATION DIRECT CODING IN TMC3
See also references of EP 3929881A4
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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