Sony patents method to reduce data load for 3D point cloud videos
Sony describes a way to store 3D object data by dividing it into independent sections called tiles. The system tracks which sections stay still and which move, allowing players to skip decoding the static parts to save processing power.
In the filing’s own words
An information processing device and method are capable of inhibiting an increase in the load of a reproduction process. First information about a change in a relationship of a point cloud expressing an object having a three-dimensional shape for three-dimensional spatial regions that are independently decodable is generated, second information about the three-dimensional spatial regions is generated in accordance with the first information, and a file storing a bit stream of encoded data acquired by encoding the point cloud, the first information, and the second information is generated. In addition, the first information stored in the file is referred to, and, in a case in which the relationship described above is static, data of tiles composing the three-dimensional spatial regions constructing a point cloud is extracted on the basis of the second information, and the data is decoded.
What exactly they claim (claim 1)
1. An information processing device comprising: circuitry configured to: generate first information about a change in a relationship of a point cloud expressing an object having a three-dimensional shape for three-dimensional spatial regions that are independently decodable; generate second information about the three-dimensional spatial regions in accordance with the first information; generate a file storing a bit stream of encoded data acquired by encoding the point cloud, the first information, and the second information; and transmit the bit stream to a receiving device configured to extract and decode the encoded data, wherein the first information is information indicating whether or not a correspondence relation between each of the three-dimensional spatial regions and information used for acquiring a respective one of the tiles is static, wherein, based on at least some of the three-dimensional spatial regions being dynamic, the second information includes information representing a number of the three-dimensional spatial regions which are static and does not include information re resenting the correspondence relation for the three-dimensional spatial regions which are static, and wherein the receiving device extracts the data of the tiles from the file based on information about the three-dimensional spatial regions that are dynamic and the second information.
Facts
- Company
- Sony (Sony Group Corporation)
- Official title
- INFORMATION PROCESSING DEVICE AND METHOD
- Publication number
- US20260268531A1
- Application number
- 19661683
- Filed
- Apr 29, 2026
- Published
- Sep 10, 2026
- Inventors
- 2
- Claims
- 8
Classified under
G06T 9/001 Physics & computingG06T 17/00 Physics & computingH04N 19/597 Electricity & electronicsMore from Sony in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.