Invention Grant
- Patent Title: Secondary component attribute coding for geometry-based point cloud compression (G-PCC)
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Application No.: US17224877Application Date: 2021-04-07
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Publication No.: US11558643B2Publication Date: 2023-01-17
- Inventor: Adarsh Krishnan Ramasubramonian , Bappaditya Ray , Geert Van der Auwera , Louis Joseph Kerofsky , Marta Karczewicz
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H04N19/124
- IPC: H04N19/124 ; H04N19/186 ; H04N19/70 ; H04N19/174 ; H04N19/597
Abstract:
In some examples, a method of decoding a point cloud includes determining a first slice QP value for a first component of an attribute in a slice of point cloud data. The method also includes decoding a first delta QP value for the first component of the attribute for a region in the slice and determining a first region QP value for the first component of the attribute in the region from the first slice QP value and from the first delta QP value. The method further includes decoding a second delta QP value for the second component of the attribute for the region and determining a second region QP value for the second component of the attribute in the region from the second delta QP value. The method includes decoding the point cloud data based on the first and second region QP values.
Public/Granted literature
- US20210329298A1 SECONDARY COMPONENT ATTRIBUTE CODING FOR GEOMETRY-BASED POINT CLOUD COMPRESSION (G-PCC) Public/Granted day:2021-10-21
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