Video encoding/decoding method and apparatus, and recording medium in which bit stream is stored
US-2024357109-A1 · Oct 24, 2024 · US
Moving picture coding method for quantizing a plurality of pictures using a quantization step and a small quantization step having a size smaller than a size of the quantization step
US8948255B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948255-B2 |
| Application number | US-200913054946-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 29, 2009 |
| Priority date | Sep 29, 2008 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A moving picture coding device according to the present invention includes: a QP deriving unit which derives, based on a moving picture signal, a quantization step and a small quantization step having a size smaller than a size of the quantization step; a small QP position determining unit which determines a position, within a picture, of a first block group to be quantized by using the small quantization step; and a video encoder which quantizes the first block group at the determined position by using the small quantization step and a second block group at a position within the picture other than the position of the first block group by using the quantization step.
First claim
Opening claim text (preview).
This invention claimed is: 1. A moving picture coding device which quantizes, per block, a plurality of pictures by using a quantization step and codes the quantized pictures, the plurality of pictures being temporally consecutive and included in a moving picture signal, said moving picture coding device comprising: a quantization step deriving unit configured to derive, based on the moving picture signal, a quantization step and a small quantization step having a size smaller tha…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N19/174Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8948255B2 cover?
- A moving picture coding device according to the present invention includes: a QP deriving unit which derives, based on a moving picture signal, a quantization step and a small quantization step having a size smaller than a size of the quantization step; a small QP position determining unit which determines a position, within a picture, of a first block group to be quantized by using the small q…
- Who is the assignee on this patent?
- Kadono Shinya, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N19/174. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 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).