Method of determining motion vectors for bi-predictive image block
US-2016014427-A1 · Jan 14, 2016 · US
Method and apparatus for encoding and decoding image by using large transformation unit
US9386325B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9386325-B2 |
| Application number | US-201514618201-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 10, 2015 |
| Priority date | Aug 13, 2009 |
| Publication date | Jul 5, 2016 |
| Grant date | Jul 5, 2016 |
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Abstract
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An image decoding apparatus in which a size of at least one transformation unit in a coding unit is determined independently from a size of at least one prediction unit in the coding unit.
First claim
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What is claimed is: 1. An image decoding apparatus comprising: a processor which is configured for splitting an image into a plurality of maximum coding units, parsing, from a bitstream, split information of a coding unit, and determining coding units in a maximum coding unit among the plurality of maximum coding units using the split information of a coding unit, and a decoder which is configured for decoding the coding units, wherein: the decoder is configured for reconstructing a residual of at least one transformation unit of a coding unit among the coding units, by performing inverse quantization and inverse transformation on the parsed transformation coefficients, and performing intra prediction or inter prediction on the at least one prediction unit of the coding unit to generate a predictor, and a size of the at least one transformation unit in the coding unit is determined independently from a size of the at least one prediction unit in the coding unit. 2. The image decoding apparatus of claim 1 , wherein the at least one prediction unit comprises a plurality of prediction units, and wherein the at least one transformation unit comprises a transformation unit having a size larger than a size of the plurality of prediction units. 3. The image decoding apparatus of claim 1 , wherein the size of the at least one transformation unit is different from the size of the least one prediction unit and a size of the coding unit.
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Tree coding, e.g. quad-tree coding · CPC title
characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding · CPC title
the region being a block, e.g. a macroblock · CPC title
in combination with predictive coding · CPC title
Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type · CPC title
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- What does patent US9386325B2 cover?
- An image decoding apparatus in which a size of at least one transformation unit in a coding unit is determined independently from a size of at least one prediction unit in the coding unit.
- Who is the assignee on this patent?
- Samsung Electronics Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N19/119. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 05 2016 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).