Invention Grant
- Patent Title: Method, an apparatus and a computer program product for volumetric video encoding and decoding
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Application No.: US17611243Application Date: 2020-04-15
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Publication No.: US12096027B2Publication Date: 2024-09-17
- Inventor: Sebastian Schwarz , Kimmo Roimela , Mika Pesonen
- Applicant: Nokia Technologies Oy
- Applicant Address: FI Espoo
- Assignee: Nokia Technologies Oy
- Current Assignee: Nokia Technologies Oy
- Current Assignee Address: FI Espoo
- Agency: Harrington & Smith
- Agent Joseph C. Drish
- Priority: FI 195425 2019.05.22
- International Application: PCT/FI2020/050243 2020.04.15
- International Announcement: WO2020/234509A 2020.11.26
- Date entered country: 2021-11-15
- Main IPC: H04N19/597
- IPC: H04N19/597 ; G06T15/06 ; H04N19/70

Abstract:
A method for decoding comprises receiving a compressed bitstream relating to a video presentation; decoding from the received bitstream data relating to three-dimensional blocks of a video frame; for each block of the video frame, determining information on surface parameters; generating a bounding box for a three-dimensional block according to the surface parameters; calculating a ray direction for each pixel of the three-dimensional block from a viewpoint to coordinates of the pixel; determining at least two points according to an intersection of the ray to the generated bounding box; ray casting points between the determined at least two points until a condition to finish the ray casting is met; reconstructing three-dimensional data from the geometry image and the texture image according to the information on one or more surface parameters for a block; reconstructing a video presentation according to the reconstructed three-dimensional data for rendering.
Public/Granted literature
- US20220217400A1 METHOD, AN APPARATUS AND A COMPUTER PROGRAM PRODUCT FOR VOLUMETRIC VIDEO ENCODING AND DECODING Public/Granted day:2022-07-07
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