JPWO2019142163A5 - - Google Patents

Claims (15)

A first depth image representing a depth value of a first closer point in a point group frame, wherein the first point is a point closer to the projection plane, and the point group. A second depth image representing the depth value of a second point in the frame, wherein the second point is configured to pad a second depth image, which is a point farther from the projection plane. One of the padded first depth image or the padded second depth image is the padded first depth image or the padded. A device predicted by using the other of the second depth images as a reference image. A first depth image representing the depth value of a first point in a point group frame, wherein the first point is a point closer to the projection plane, the first depth image, and the point group frame. A second depth image representing a depth value of a second point, comprising padding the second depth image, wherein the second point is a point farther from the projection plane. One of the padded first depth image or the padded second depth image is the other of the padded first depth image or the padded second depth image. The method predicted by using it as a reference image. The first aspect of the invention is further configured for the at least one processor to encode a video stream comprising interleaving the padded first and second depth images of the point cloud frame. The method of claim 1, comprising the device according to the invention, or the encoding thereof. A device comprising at least one processor, said at least one processor.
-A first depth image representing the depth value of a first point in a point cloud frame, wherein the first point is a point closer to the projection plane, and the point cloud frame. A video stream for providing a second depth image representing a second depth value of a point, wherein the second point is the furthest point of the projection plane. To decrypt and
-A device configured to filter the pixel values of the second depth image by using the pixel values of the first depth image. It ’s a method,
-The depth of the first depth image representing the depth value of the first point of the point cloud frame, which is the closer point of the projection plane, and the depth of the second point of the point cloud frame, which is the farther point of the projection plane. Decoding the video stream to provide a second depth image representing the value,
-A method comprising filtering the pixel values of the second depth image by using the pixel values of the first depth image. 4. The fourth aspect of claim is that filtering the pixel values of the second depth image is based on the difference between the pixel values of the first depth image and the pixel values of the second depth image. The device, or the method of claim 5. 68. The device or method of claim 68, wherein filtering the pixel values comprises clipping the difference. The device or method of claim 7, wherein the clipping is based on a given range. 8. The device or method of claim 8, wherein the given range ranges from 0 to the maximum surface thickness. The device or method of claim 8 or 9, wherein at least one limit of the given range is transmitted. The device according to any one of claims 4 or 6 to 10, wherein providing the first and second depth images comprises deinterleaving the decoded video stream, or claim 5. The method according to any one of 10. A signal that carries data representing the depth values of a point in a point cloud frame, between the depth values of two points in the point cloud where the signal is projected onto a projection plane along the same projection line. A signal that further carries data representing the surface thickness that defines the maximum difference. The data representing the surface thickness includes a first bit indicating whether or not the reconstructed depth value derived from the conveyed data representing the depth value needs to be filtered, and the surface thickness. 12. The signal of claim 12, comprising at least one other bit for indicating an integer value. A computer program product comprising instructions that, when the program is executed by one or more processors, to the one or more processors according to either claim 2 or 3 or 5-11. A computer program product that causes the described method to be performed. A non-temporary computer-readable medium, having one or more processors perform the method according to any one of claims 2 or 3 or 5-11, and / or storing the signal according to claim 12. A non-temporary computer-readable medium that contains instructions for.