Invention Grant
- Patent Title: Point cloud compression
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Application No.: US17112532Application Date: 2020-12-04
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Publication No.: US11461935B2Publication Date: 2022-10-04
- Inventor: Khaled Mammou , Fabrice A. Robinet
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Agent Alexander A. Knapp
- Main IPC: G06T9/40
- IPC: G06T9/40 ; G06T7/50 ; G06T3/40 ; H04N19/44 ; H04N19/96 ; H04N19/90 ; H04N19/91 ; H04N19/186 ; G06T17/00 ; H04N19/593

Abstract:
A system comprises an encoder configured to compress attribute information for a point cloud and/or a decoder configured to decompress compressed attribute information for the point cloud. Attribute values for at least one starting point are included in a compressed attribute information file and attribute correction values used to correct predicted attribute values are included in the compressed attribute information file. Attribute values are predicted based, at least in part, on attribute values of neighboring points and distances between a particular point for whom an attribute value is being predicted and the neighboring points. The predicted attribute values are compared to attribute values of a point cloud prior to compression to determine attribute correction values. A decoder follows a similar prediction process as an encoder and corrects predicted values using attribute correction values included in a compressed attribute information file.
Public/Granted literature
- US20210118190A1 Point Cloud Compression Public/Granted day:2021-04-22
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