IP Library › Granted Patent US 12,272,108
Granted Patent B2
US 12,272,108 · App. 18/118,866 · Granted Apr 8, 2025

Point cloud decoding device, point cloud decoding method, and program

Inventors: Kyohei Unno (Fujimino, JP); Kei Kawamura (Fujimino, JP)
Assignee: KDDI CORPORATION
G06T9/40
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Quick Facts
Patent No.
US 12,272,108
App. No.
18/118,866
Granted
Apr 8, 2025
Kind
B2
Abstract

A point cloud decoding device 200 according to the present invention includes: a geometry information decoding unit 2010 that decodes a first flag used to indicate whether or not to use a planar mode from a bit stream and recognizes the first flag as having an identical value to a case of failing to use the planar mode in a case of non-inclusion of the first flag in the bit stream.

Claims (14)

1. A point cloud decoding device, comprising:

a computer that is configured to:

decode a first flag used to indicate whether or not to use a planar mode from a bit stream,

recognize the first flag as having an identical value to a case of failing to use the planar mode in a case of non-inclusion of the first flag in the bit stream, and

decode a second flag in a case where the first flag indicates that the planar mode is to be used, the second flag being used to control whether or not to perform a nearest neighbor node search using a buffer in decoding information regarding the planar mode.

2. The point cloud decoding device according to claim 1 , wherein when the computer does not decode the second flag, the computer is configured to recognize the second flag as having an identical value to a case of failing to perform the nearest neighbor node search using the buffer in decoding the information regarding the planar mode.

3. A point cloud decoding method, comprising:

decoding a first flag used to indicate whether or not to use a planar mode from a bit stream;

recognizing the first flag as having an identical value to a case of failing to use the planar mode in a case of non-inclusion of the first flag in the bit stream; and

decoding a second flag in a case where the first flag indicates that the planar mode is to be used, the second flag being used to control whether or not to perform a nearest neighbor node search using a buffer in decoding information regarding the planar mode.

4. A non-transitory computer-readable medium having stored thereon a program that is executable by a computer of a point cloud decoding device to cause the computer to perform functions comprising:

decoding a first flag used to indicate whether or not to use a planar mode from a bit stream;

recognizing the first flag as having an identical value to a case of failing to use the planar mode in a case of non-inclusion of the first flag in the bit stream; and

decoding a second flag in a case where the first flag indicates that the planar mode is to be used, the second flag being used to control whether or not to perform a nearest neighbor node search using a buffer in decoding information regarding the planar mode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 16, 2023
From: UNNO, KYOHEI; KAWAMURA, KEI
To: KDDI CORPORATION
Reel/Frame 063003/0088 →
Priority Claims (1)
JP 2020-164123 · Sep 29, 2020 · national
Continuity (2)
Continuation PCTJP2021035549 · Sep 28, 2021
Related Publication 20230222699A1 · Jul 13, 2023
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