Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
US-9516337-B2 · Dec 6, 2016 · US
Inter sub-mode decision process in a transcoding operation
US8929448B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929448-B2 |
| Application number | US-64429606-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 22, 2006 |
| Priority date | Dec 22, 2006 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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In one embodiment, a macroblock is determined in an incoming bitstream. In one example, the macroblock may be a 16×16 macroblock for a first coding standard, such as MPEG-2. The macroblock is then divided into a plurality of segmented blocks. For example, an arbitrary sized segment of blocks may be used to divide the macroblock into segmented blocks. In one example, the macroblock is divided into four 8×8 segmented blocks. A plurality of statistical measures are then determined for the plurality of segmented blocks. For example, for each segmented block, a sum of absolute differences (SAD) is determined. Then, one or more sizes for the sub-blocks are determined based on the comparison. For example, a variable sub-block size for an AVC bitstream is determined.
First claim
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I claim: 1. A method for determining one or more sub-block sizes for a macroblock in a transcoding process for an incoming bitstream, the method comprising: determining a macroblock in the incoming bitstream; dividing the macroblock into a plurality of segmented blocks, each segmented block being characterized by a first size including a plurality of pixels; determining for each of the plurality of segmented blocks, a statistical measure comprising a sum of absolute difference…
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Electricity · mapped topic
- H04N7/26941Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N19/137Primary
Electricity · mapped topic
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- What does patent US8929448B2 cover?
- In one embodiment, a macroblock is determined in an incoming bitstream. In one example, the macroblock may be a 16×16 macroblock for a first coding standard, such as MPEG-2. The macroblock is then divided into a plurality of segmented blocks. For example, an arbitrary sized segment of blocks may be used to divide the macroblock into segmented blocks. In one example, the macroblock is divided in…
- Who is the assignee on this patent?
- Youn Jeongnam, Sony Corp, Sony Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04N7/26941. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 06 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).