Point cloud data transmitting device, point cloud data transmitting method, point cloud data receiving device, and point cloud data receiving method
地域：
Seoul
摘要
A point cloud data transmitting method according to embodiments can comprise the steps of encoding point cloud data and transmitting a bitstream including the point cloud data. A point cloud data receiving method according to embodiments can comprise the steps of receiving a bitstream including point cloud data, decoding the point cloud data, and rendering the point cloud data.
說(shuō)明書
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This application is a National Stage Application of International Application No. PCT/KR2020/002535, filed on Feb. 21, 2020, which claims the benefit of and priority to U.S. Provisional Application No. 62/821,383, filed on Mar. 20, 2019, which are hereby incorporated by reference in their entirety for all purposes as if fully set forth herein.
Embodiments provide a method for providing point cloud contents to provide a user with various services such as virtual reality (VR), augmented reality (AR), mixed reality (MR), and autonomous driving services.
A point cloud is a set of points in a three-dimensional (3D) space. It is difficult to generate point cloud data because the number of points in the 3D space is large.
A large amount of throughput is required to transmit and receive data of a point cloud, which raises an issue.
An object of the present disclosure is to provide a point cloud data transmission apparatus, a point cloud data transmission method, a point cloud data reception apparatus, and a point cloud data reception method for efficiently transmitting and receiving a point cloud.
Another object of the present disclosure is to provide a point cloud data transmission apparatus, a point cloud data transmission method, a point cloud data reception apparatus, and a point cloud data reception method for addressing latency and encoding/decoding complexity.
權(quán)利要求
The invention claimed is:1. A method of transmitting point cloud data by an apparatus, the method comprising:encoding the point cloud data; encapsulating the encoded point cloud data into a file, wherein the file includes multiple tracks, wherein a track of the multiple tracks includes a sample entry including a parameter set for the point cloud data, the parameter set including identification information that provides an identifier for the parameter set, frame width information that indicates a frame width, and frame height information that indicates a frame height, wherein a track of the multiple tracks includes a sample entry including information for a bounding box of the point cloud data, and wherein the information for the bounding box includes position information of the bounding box and information for a scale of the bounding box; and transmitting the file. 2. The method of claim 1 , wherein the information for the scale of the bounding box includes x extension information, y extension information, and z extension information of the bounding box. 3. The method of claim 1 , wherein the position information of the bounding box includes an X offset, a Y offset, a Z offset, a width, a height, a depth of the bounding box for the point cloud data, andwherein the bounding box is static. 4. An apparatus for transmitting point cloud data, the apparatus comprising:an encoder configured to encode the point cloud data, an encapsulator configured to encapsulate the encoded point cloud data into a file, wherein the file includes multiple tracks, wherein a track of the multiple tracks includes a sample entry including a parameter set for the point cloud data, the parameter set including identification information that provides an identifier for the parameter set, frame width information that indicates a frame width, and frame height information that indicates a frame height, wherein a track of the multiple tracks includes a sample entry including information for a bounding box of the point cloud data, and wherein the information for the bounding box includes position information of the bounding box and information for a scale of the bounding box; and a transmitter configured to transmit the file. 5. The apparatus of claim 4 , wherein the information for the scale of the bounding box further includes x extension information, y extension information, and z extension information of the bounding box. 6. The apparatus of claim 4 , wherein the position information of the bounding box includes an X offset, a Y offset, a Z offset, a width, a height, a depth of the bounding box for the point cloud data, andwherein the bounding box is static. 7. A method of receiving point cloud data by an apparatus, the method comprising:receiving a file including the point cloud data; decapsulating the file into the point cloud data, wherein the file includes multiple tracks, wherein a track of the multiple tracks includes a sample entry including a parameter set for the point cloud data, the parameter set including identification information that provides an identifier for the parameter set, frame width information that indicates a frame width, and frame height information that indicates a frame height, wherein a track of the multiple tracks includes information for a bounding box of the point cloud data, and wherein the information for the bounding box includes position information of the bounding box and information for a scale of the bounding box; decoding the point cloud data; and rendering the decoded point cloud data. 8. The method of claim 7 , wherein the information for the scale of the bounding box includes x extension information, y extension information, and z extension information of the bounding box. 9. The method of claim 7 , wherein the position information of the bounding box includes an X offset, a Y offset, a Z offset, a width, a height, a depth of the bounding box for the point cloud data, andwherein the bounding box is static. 10. An apparatus for receiving point cloud data, the apparatus comprising:a receiver configured to receive a file including the point cloud data; a decapsulator configured to decapsulate the file into the point cloud data, wherein the file includes multiple tracks, wherein a track of the multiple tracks includes a sample entry including a parameter set for the point cloud data, the parameter set including identification information that provides an identifier for the parameter set, frame width information that indicates a frame width, and frame height information that indicates a frame height, wherein a track of the multiple tracks includes information for a bounding box of the point cloud data, and wherein the information for the bounding box includes position information of the bounding box and information for a scale of the bounding box; a decoder configured to decode the point cloud data; and a renderer configured to render the decoded point cloud data. 11. The apparatus of claim 10 , wherein the information for the scale of the bounding box includes x extension information, y extension information, and z extension information of the bounding box. 12. The apparatus of claim 10 , wherein the position information of the bounding box includes an X offset, a Y offset, a Z offset, a width, a height, a depth of the bounding box for the point cloud data, andwherein the bounding box is static.
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