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US 11,380,019 B2Granted
Point cloud data transmission device, point cloud data transmission method, point cloud data reception device, and point cloud data reception method
AssigneeLG Electronics Inc.
InventorsSejin Oh, Yousun Park
Life of this patent
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Abstract
Disclosed herein is a transmitting method and a receiving method of point cloud data. The transmitting method may include encoding point cloud data, and transmitting a bitstream that includes the point cloud data and signaling information. The receiving method may include receiving a bitstream that includes point cloud data and signaling information, decoding the point cloud data, and rendering the decoded point cloud data.
Claims20
A point cloud data transmission method by an apparatus, the method comprising:
- encoding point cloud data;
- encapsulating a bitstream that includes the encoded point cloud data into a file according to an ISO base media file format (ISOBMFF);
- and
- transmitting the file,
- wherein the bitstream is stored in at least one of multiple tracks of the file, each track including a sample entry and a sample,
- wherein the file further includes signaling information,
- wherein the signaling information includes viewport-related information for the point cloud data,
- wherein the viewport-related information includes at least initial viewport-related information or dynamic viewport-related information that changes over time,
- wherein a track of the multiple tracks is a timed metadata track with a sample entry type of a value, the value indicating that the timed metadata track is for the viewport-related information,
- wherein the initial viewport-related information is carried through a sample entry of the timed metadata track, and
- wherein the dynamic viewport-related information is carried through a sample of the timed metadata track.
8 more elements
A point cloud data transmission apparatus, the apparatus comprising:
- an encoder for encoding point cloud data;
- an encapsulator for encapsulating a bitstream that includes encoded point cloud data into a file according to an ISO base media file format (ISOBMFF);
- and
- a transmitter for transmitting the file,
- wherein the bitstream is stored in at least one of multiple tracks of the file, each track including a sample entry and a sample,
- wherein the file further includes signaling information,
- wherein the signaling information includes viewport-related information for the point cloud data,
- wherein the viewport-related information includes at least initial viewport-related information or dynamic viewport-related information that changes over time,
- wherein a track of the multiple tracks is a timed metadata track with a sample entry type of a value, the value indicating that the timed metadata track is for the viewport-related information,
- wherein the initial viewport-related information is carried through a sample entry of the timed metadata track, and
- wherein the dynamic viewport-related information is carried through a sample of the timed metadata track.
8 more elements
A point cloud data reception apparatus, the apparatus comprising:
- a receiver for receiving a file of an ISO base media file format (ISOBMFF);
- a decapsulator for decapsulating the file into a bitstream that includes encoded point cloud data, wherein the bitstream is stored in at least one of multiple tracks of the file, wherein each track includes a sample entry and a sample, wherein the file further includes signaling information, and wherein the signaling information includes viewport-related information for the point cloud data;
- a decoder for decoding the encoded point cloud data;
- and
- a renderer for rendering the decoded point cloud data based on the viewport-related information,
- wherein the viewport-related information includes at least initial viewport-related information or dynamic viewport-related information that changes over time,
- wherein a track of the multiple tracks is a timed metadata track with a sample entry type of a value, the value indicating that the timed metadata track is for the viewport-related information including a sample entry and a sample,
- wherein the initial viewport-related information is carried through a sample entry of the timed metadata track, and
- wherein the dynamic viewport-related information is carried through a sample of the timed metadata track.
6 more elements
A point cloud data reception method by an apparatus, the method comprising:
- receiving a file of an ISO base media file format (ISOBMFF);
- decapsulating the file into a bitstream that includes encoded point cloud data, wherein the bitstream is stored in at least one of multiple tracks of the file, wherein each track includes a sample entry and a sample, wherein the file further includes signaling information, and wherein the signaling information includes viewport-related information for the point cloud data;
- decoding the encoded point cloud data;
- and
- rendering the decoded point cloud data based on the viewport-related information,
- wherein the viewport-related information includes at least initial viewport-related information or dynamic viewport-related information that changes over time,
- wherein a track of the multiple tracks is a timed metadata track with a sample entry type of a value, the value indicating that the timed metadata track is for the viewport-related information,
- wherein the initial viewport-related information is carried through a sample entry of the timed metadata track, and
- wherein the dynamic viewport-related information is carried through a sample of the timed metadata track.
6 more elements
Dependencies are inferred from the claim text.