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CN-122027805-A - Encoding device and method, decoding device and method, transmitting device and method

CN122027805ACN 122027805 ACN122027805 ACN 122027805ACN-122027805-A

Abstract

The present disclosure relates to an encoding device, an encoding method, a decoding device, a decoding method, a transmitting device, and a transmitting method. The encoding device of the present disclosure includes a circuit that encodes 1 or more pictures that have common time information and are included in mutually different layers, wherein the 1 or more pictures are included in 1 access unit in a bitstream, wherein a 1 st flag indicating that the access units present in the bitstream are 1 is included in the bitstream, and a memory connected to the circuit, wherein the circuit performs intra prediction on all of the 1 or more pictures included in the 1 access unit.

Inventors

  • ABE KIYOFUMI
  • XI XIAOQI
  • Far Real

Assignees

  • 松下电器（美国）知识产权公司

Dates

Publication Date
20260512
Application Date
20210517
Priority Date
20200519

Claims (6)

  1. 1. An encoding device, comprising: Circuit, and A memory, connected to the circuit, In operation of the circuit in question, Encoding 1 or more pictures having common time information and included in mutually different layers, The more than 1 picture is contained in 1 access unit in the bitstream, A 1 st flag indicating that there are 1 access units in the bitstream is included in the bitstream, The circuit performs intra prediction on all of the 1 or more pictures included in the 1 access unit.
  2. 2. An encoding method, wherein, Encoding 1 or more pictures having common time information and included in mutually different layers, The more than 1 picture is contained in 1 access unit in the bitstream, A 1 st flag indicating that there are 1 access units in the bitstream is included in the bitstream, Intra prediction is performed on all of the 1 or more pictures included in the 1 access unit.
  3. 3. A decoding device is provided with: Circuit, and A memory, connected to the circuit, In operation of the circuit in question, A 1 st flag indicating that the access units present in the bitstream are 1 is fetched from the bitstream, More than 1 picture is taken from 1 access unit in the bitstream, Decoding the 1 or more pictures having common time information and included in mutually different layers, The circuit performs intra prediction on all of the 1 or more pictures included in the 1 access unit.
  4. 4. A decoding method, wherein, A 1 st flag indicating that the access units present in the bitstream are 1 is fetched from the bitstream, More than 1 picture is taken from 1 access unit in the bitstream, Decoding the 1 or more pictures having common time information and included in mutually different layers, Intra prediction is performed on all of the 1 or more pictures included in the 1 access unit.
  5. 5. A transmitting apparatus is provided with: Circuit, and A memory, connected to the circuit, In operation of the circuit in question, Encoding 1 or more pictures having common time information and included in mutually different layers, The more than 1 picture is contained in 1 access unit in the bitstream, A 1 st flag indicating that there are 1 access units in the bitstream is included in the bitstream, The bit stream is transmitted in a manner such that, The circuit performs intra prediction on all of the 1 or more pictures included in the 1 access unit.
  6. 6.A method of transmission, wherein, Encoding 1 or more pictures having common time information and included in mutually different layers, The more than 1 picture is contained in 1 access unit in the bitstream, A 1 st flag indicating that there are 1 access units in the bitstream is included in the bitstream, The bit stream is transmitted in a manner such that, Intra prediction is performed on all of the 1 or more pictures included in the 1 access unit.

Description

Encoding device and method, decoding device and method, transmitting device and method The present application is a division of patent applications of 2021, 5-17, 202180035534.6 and entitled "encoding device, decoding device, encoding method and decoding method". Technical Field The present disclosure relates to an encoding apparatus, a decoding apparatus, an encoding method, and a decoding method. Background Video Coding techniques have advanced from H.261 and MPEG-1 to H.264/AVC (Advanced Video Coding: advanced Video Coding), MPEG-LA, H.265/HEVC (HIGH EFFICIENCY Video Coding: high efficiency Video Coding), and H.266/VVC (VERSATILE VIDEO CODEC: versatile Video codec). With this advancement, there is a constant need to provide improvements and optimizations in video coding techniques in order to handle the ever increasing amount of digital video data in a variety of applications. The present disclosure relates to further advances, improvements, and optimizations in video coding. Further, non-patent document 1 relates to an example of a conventional standard related to the video encoding technique described above. Prior art literature Non-patent literature Non-patent document 1 H.265 (ISO/IEC 23008-2 HEVC)/HEVC (HIGH EFFICIENCY Video Coding) Disclosure of Invention Problems to be solved by the invention As for the above-described coding scheme, a new scheme is desired for improving coding efficiency, improving image quality, reducing processing amount, reducing circuit scale, properly selecting elements or operations such as filters, blocks, sizes, motion vectors, reference pictures, and reference blocks, and the like. The present disclosure provides a structure or method capable of contributing to 1 or more of improvement of coding efficiency, improvement of image quality, reduction of processing amount, reduction of circuit scale, improvement of processing speed, proper selection of elements or operations, and the like, for example. Furthermore, the present disclosure may include structures or methods that can contribute to benefits other than those described above. Means for solving the problems For example, an encoding device according to an aspect of the present disclosure includes a circuit that encodes 1 or more pictures that have common time information and are included in mutually different layers, includes 1 access unit in a bitstream, includes a1 st flag indicating that the access unit is 1 in the bitstream, and includes a memory connected to the circuit, and the circuit performs intra prediction on all of the 1 or more pictures included in the 1 access unit. In an encoding method according to an aspect of the present disclosure, 1 or more pictures having common time information and included in mutually different layers are encoded, the 1 or more pictures are included in 1 access unit in a bitstream, a1 st flag indicating that the access units present in the bitstream are 1 is included in the bitstream, and intra prediction is performed on all of the 1 or more pictures included in the 1 access unit. The decoding device according to an aspect of the present disclosure includes a circuit that, in operation, acquires a 1 st flag indicating that access units present in a bitstream are 1 from the bitstream, acquires 1 or more pictures from 1 access unit in the bitstream, decodes the 1 or more pictures that have common time information and are included in mutually different layers, and a memory connected to the circuit, and performs intra-frame total prediction on the 1 or more pictures included in the 1 access units. In one embodiment of the present disclosure, a1 st flag indicating that access units present in a bitstream are 1 is acquired from the bitstream, 1 or more pictures are acquired from 1 access unit in the bitstream, the 1 or more pictures having common time information and included in mutually different layers are decoded, and intra prediction is performed on all of the 1 or more pictures included in the 1 access units. The transmission device according to an aspect of the present disclosure includes a circuit that encodes 1 or more pictures that have common time information and are included in mutually different layers, includes 1 access unit in a bit stream, includes a1 st flag indicating that the access unit is 1 in the bit stream, and transmits the bit stream, and a memory connected to the circuit. In a transmission method according to an aspect of the present disclosure, 1 or more pictures having common time information and included in mutually different layers are encoded, the 1 or more pictures are included in 1 access unit in a bitstream, a1 st flag indicating that the access units present in the bitstream are 1 is included in the bitstream, the bitstream is transmitted, and intra prediction is performed on all of the 1 or more pictures included in the 1 access units. The configuration and method of each embodiment or a part thereof in the present disclosure can realize at least 1 o