Use of specific hevc sei messages for multi-layer video codecs
US-2015271525-A1 · Sep 24, 2015 · US
Image processing apparatus and method
US2022256194A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022256194-A1 |
| Application number | US-202017617492-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 8, 2020 |
| Priority date | Jun 20, 2019 |
| Publication date | Aug 11, 2022 |
| Grant date | — |
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Abstract
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The present technology relates to an image processing apparatus and method for shortening a delay from inputting of a stream till generation of a decoded image. The image processing apparatus generates an encoded stream by adding at least part of header information about a second access unit (AU) to be processed immediately after a first AU or information regarding at least part of the header information, to supplemental enhancement information (SEI) about the first AU. The present technology can be applied to an image encoding device.
First claim
Opening claim text (preview).
1 . An image processing apparatus comprising an encoded stream generation unit that generates an encoded stream by adding at least part of header information about a second access unit (AU) to be processed immediately after a first AU or information regarding at least part of the header information, to supplemental enhancement information (SEI) about the first AU. 2 . The image processing apparatus according to claim 1 , wherein the first AU is a top AU in a group of pictures (GOP), and the encoded stream generation unit adds at least part of the header information about an AU after the second AU in the GOP to the SEI about the first AU. 3 . The image processing apparatus according to claim 1 , wherein the first AU is a top AU in a GOP, and the encoded stream generation unit adds a generation pattern for generating at least part of the header information about an AU in the GOP to the SEI about the first AU. 4 . The image processing apparatus according to claim 1 , wherein the encoded stream generation unit adds at least part of the header information about the second AU to the SEI about the first AU. 5 . The image processing apparatus according to claim 4 , wherein the at least part of the header information is information necessary in preprocessing for a decoding process. 6 . The image processing apparatus according to claim 5 , wherein the information necessary in the preprocessing is information necessary in picture order count (POC) generation. 7 . The image processing apparatus according to claim 5 , wherein the information necessary in the preprocessing is a parameter that varies with each picture. 8 . The image processing apparatus according to claim 5 , wherein the preprocessing includes a parsing process for the header information, a POC generation process, and a RefPicList generation process. 9 . An image processing method implemented by an image processing apparatus, the image processing method comprising generating an encoded stream by adding at least part of header information about a second access unit (AU) to be processed immediately after a first AU or information regarding at least part of the header information, to supplemental enhancement information (SEI) about the first AU. 10 . An image processing apparatus comprising a decoding unit that decodes a second AU on a basis of header information that is processed upon receipt of an encoded stream, the encoded stream having been generated by adding at least part of the header information about the second AU to be processed immediately after a first AU or information regarding at least part of the header information, to SEI about the first AU. 11 . An image processing method implemented by an image processing apparatus, the image processing method comprising decoding a second AU on a basis of header information that is processed upon receipt of an encoded stream, the encoded stream having been generated by adding at least part of the header information about the second AU to be processed immediately after a first AU or information regarding at least part of the header information, to SEI about the first AU.
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Classifications
using parallelised computational arrangements · CPC title
- H04N19/70Primary
characterised by syntax aspects related to video coding, e.g. related to compression standards · CPC title
involving reduction of coding artifacts, e.g. of blockiness · CPC title
the unit being a group of pictures [GOP] · CPC title
Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder · CPC title
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- What does patent US2022256194A1 cover?
- The present technology relates to an image processing apparatus and method for shortening a delay from inputting of a stream till generation of a decoded image. The image processing apparatus generates an encoded stream by adding at least part of header information about a second access unit (AU) to be processed immediately after a first AU or information regarding at least part of the header i…
- Who is the assignee on this patent?
- Sony Semiconductor Solutions Corp
- What technology area does this patent fall under?
- Primary CPC classification H04N19/70. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 11 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).