Invention Grant
- Patent Title: Point cloud geometry compression using octrees with multiple scan orders
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Application No.: US17355830Application Date: 2021-06-23
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Publication No.: US11620768B2Publication Date: 2023-04-04
- Inventor: David Flynn
- 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 ; G06T15/10

Abstract:
An encoder is configured to compress point cloud geometry information using an octree geometric compression technique that utilizes node groups. Nodes within a node group are scanned according to a breadth first scan order. Sequential node groups to evaluate may be selected according to a breadth first scan order or a depth first scan order based on whether or not the breadth first scan order or the depth first scan order is indicated in a flag in a preceding node group evaluated. In some embodiments, evaluation orders for node groups may be implicit without being signaled via flags. A decoder is configured to reconstruct a point cloud based on a bit stream encoded by the encoder.
Public/Granted literature
- US20210407148A1 Point Cloud Geometry Compression Using Octrees with Multiple Scan Orders Public/Granted day:2021-12-30
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