Granted Patent B2

US 12,604,035 · App. 18/354,983 · Granted Apr 14, 2026

Inventors: Eun Seok Ryu (Seoul, KR); Jong Beom Jeong (Yangju-si, KR); Soon Bin Lee (Seongnam-si, KR)

Assignee: Research & Business Foundation Sungkyunkwan University

H04N19/597H04N19/124H04N19/136H04N19/172

Abstract

Claims (30)

1 . A multi-view video encoding method, which is performed in a multi-view video encoding apparatus, the method comprising:

generating first bitstreams for each of a plurality of quantization parameters (QPs) different from each other by encoding an atlas for a multi-view video in the quantization parameters;

extracting second bitstreams for sub-regions in the atlas from the first bitstreams; and

generating a third bitstream by merging, among the second bitstreams, second bitstreams with a predetermined bit rate,

wherein the atlas is divided based on a size of a packing tile, and

wherein the size of the packing tile is determined based on a size of a basic view video of the multi-view video.

2 . The method of claim 1 , wherein the sub-regions are tiles or sub-pictures.

3 . The method of claim 1 , wherein the predetermined bit rate is determined based on a patch occupancy rate within the packing tile corresponding to the unit of packing.

4 . The method of claim 1 , further comprising generating a fourth bitstream by encoding information on packing.

5 . A multi-view video decoding method, which is performed in a multi-view video decoding apparatus, the method comprising:

acquiring a third bitstream, in which an atlas for the multi-view video is encoded, and a fourth bitstream in which packing information is encoded;

generating the atlas by decoding the third bitstream; and

generating the multi-view video based on the atlas and the packing information,

wherein the atlas is divided based on a size of a packing tile, and

wherein the size of the packing tile is determined based on a size of a basic view video of the multi-view video.

6 . A multi-view video encoding apparatus comprising:

a memory; and

at least one processor,

wherein the at least one processor is configured to:

generate first bitstreams for each of a plurality of quantization parameters (QPs) different from each other by encoding an atlas divided into at least one sub-region in the quantization parameters,

extract second bitstreams for the sub-region from the first bitstreams, and

generate a third bitstream by merging, among the second bitstreams, second bitstreams with a predetermined bit rate,

wherein the atlas is divided based on a size of a packing tile, and

wherein the size of the packing tile is determined based on a size of a basic view video of the multi-view video.

7 . A method for transmitting a bitstream generated by a multi-view video encoding method, the method comprising:

generating first bitstreams for each of a plurality of quantization parameters (QPs) different from each other by encoding an atlas divided into at least one sub-region in the quantization parameters;

extracting second bitstreams for the sub-region from the first bitstreams; and

generating a third bitstream by merging, among the second bitstreams, second bitstreams with a predetermined bit rate,

wherein the atlas is divided based on a size of a packing tile, and

wherein the size of the packing tile is determined based on a size of a basic view video of the multi-view video.

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (15)