Title:
NOISE DETERMINATION METHOD, NOISE DETERMINATION DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/240766
Kind Code:
A1
Abstract:
This noise determination device comprises an acquisition unit and a determination unit. The acquisition unit acquires n-ary tree structure data. The n-ary tree structure data contains information as to the presence or absence of points in each segmented region obtained by segmenting a spatial region represented by point cloud data including information about the position of each point by an n-ary tree structure comprising a plurality of hierarchical layers, and at the same time, when it comes to a segmented region containing only one point, the n-ary tree structure data also contains a reference symbol that represents said point, as an alternative to the information of segmented regions in lower order hierarchical layers than the segmented region in question. The determination unit determines a point represented by the abovementioned reference symbol as a noise in hierarchical layers higher than in a prescribed hierarchical layer.
Inventors:
WATANABE MAYUKO (JP)
TANIDA RYUICHI (JP)
KIMATA HIDEAKI (JP)
TANIDA RYUICHI (JP)
KIMATA HIDEAKI (JP)
Application Number:
PCT/JP2020/021289
Publication Date:
December 02, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H03M7/00; G01B11/00; G06T9/40
Domestic Patent References:
| WO2019103009A1 | 2019-05-31 |
Other References:
ANONYMOUS: "C-PCC codes description", MPEG.CHIARIGLIONE.ORG, January 2019 (2019-01-01), Retrieved from the Internet [retrieved on 20200811]
DRICOT, ANTOINE ET AL.: "Adaptive Multi-level Triangle Soup for Geometry-based Point Cloud Coding", 2019 IEEE 21ST INTERNATIONAL WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING (MMSP, 18 November 2019 (2019-11-18), pages 1 - 6, XP033660072, Retrieved from the Internet [retrieved on 20200811]
LIU, CHANG ET AL.: "3D Point Cloud Denoising and Normal Estimation for 3D Surface Reconstruction", 2015 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND BIOMIINETICS (ROBIO, 25 February 2016 (2016-02-25), pages 820 - 825, XP032873164, Retrieved from the Internet [retrieved on 20200811]
TANG, LIN ET AL.: "Compression Algorithm of Scattered Point Cloud Based on Octree Coding", 20162ND IEEE INTERNATIONAL CONFERENCE ON COMPUTER AND COMMUNICATIONS(ICCC, 11 May 2017 (2017-05-11), pages 85 - 89, XP033094437, Retrieved from the Internet [retrieved on 20200811]
DRICOT, ANTOINE ET AL.: "Adaptive Multi-level Triangle Soup for Geometry-based Point Cloud Coding", 2019 IEEE 21ST INTERNATIONAL WORKSHOP ON MULTIMEDIA SIGNAL PROCESSING (MMSP, 18 November 2019 (2019-11-18), pages 1 - 6, XP033660072, Retrieved from the Internet
LIU, CHANG ET AL.: "3D Point Cloud Denoising and Normal Estimation for 3D Surface Reconstruction", 2015 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND BIOMIINETICS (ROBIO, 25 February 2016 (2016-02-25), pages 820 - 825, XP032873164, Retrieved from the Internet
TANG, LIN ET AL.: "Compression Algorithm of Scattered Point Cloud Based on Octree Coding", 20162ND IEEE INTERNATIONAL CONFERENCE ON COMPUTER AND COMMUNICATIONS(ICCC, 11 May 2017 (2017-05-11), pages 85 - 89, XP033094437, Retrieved from the Internet
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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