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Moving picture coding method, and moving picture decoding method
US8964839B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964839-B2 |
| Application number | US-201213486358-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 1, 2012 |
| Priority date | Nov 6, 2001 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A moving picture coding apparatus for performing inter-picture predictive coding for pictures constituting a moving picture is provided with a coding unit for performing predictive error coding for image data; a decoding unit for performing predictive error decoding for an output from the coding unit; a reference picture memory for holding output data from the decoding unit; and a motion vector detection unit for detecting motion vectors on the basis of the decoded image data stored in the memory. When coding a B picture as a target picture, information indicating whether or not the target picture should be used as a reference picture when coding another picture is added as header information. Therefore, in a decoding apparatus for decoding a bit stream Bs outputted from the moving picture coding apparatus, management of a memory for holding the reference picture can be facilitated on the basis of the header information.
First claim
Opening claim text (preview).
The invention claimed is: 1. A coding and decoding system which includes a coding apparatus for coding each of plural pictures constituting a moving image and a decoding apparatus for decoding plural pictures constituting a moving image from a bit stream, said coding apparatus comprises: a first and second information generating unit operable to generate, on a picture-by-picture basis, either of (i) first information indicating that a target picture, which is either an I picture…
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Electricity · mapped topic
- H04N19/00Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8964839B2 cover?
- A moving picture coding apparatus for performing inter-picture predictive coding for pictures constituting a moving picture is provided with a coding unit for performing predictive error coding for image data; a decoding unit for performing predictive error decoding for an output from the coding unit; a reference picture memory for holding output data from the decoding unit; and a motion vector…
- Who is the assignee on this patent?
- Kondo Satoshi, Kadono Shinya, Hagai Makoto, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04N19/00. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).