Coding position data for the last non-zero transform coefficient in a coefficient group
US-9215464-B2 · Dec 15, 2015 · US
Progressive coding of position of last significant coefficient
US9154792B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9154792-B2 |
| Application number | US-201213669032-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 5, 2012 |
| Priority date | Nov 8, 2011 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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Abstract
Official abstract text for this publication.
A video encoder is configured to determine a first and second binary string for a value indicating the position of the last significant coefficient, within a video block of size T. A video decoder is configured to determine a value indicating the position of a last significant coefficient within a video block of size T based on a first and second binary string. In one example, the first binary string is based on a truncated unary coding scheme defined by a maximum bit length defined by 2 log 2 (T)−1 and the second binary string is based on a fixed length coding scheme defined by a maximum bit length defined by log 2 (T)−2.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for encoding video data comprising: obtaining a value indicating a position of a last significant coefficient within a video block of size T; determining a first binary string for the value indicating the position of the last significant coefficient based on a truncated unary coding scheme defined by a maximum bit length defined by 2log 2 (T)−1; determining a second binary string for the value indicating the position of the last significant coef…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04N19/88Primary
Electricity · mapped topic
- H03M7/4018Primary
Electricity · mapped topic
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- What does patent US9154792B2 cover?
- A video encoder is configured to determine a first and second binary string for a value indicating the position of the last significant coefficient, within a video block of size T. A video decoder is configured to determine a value indicating the position of a last significant coefficient within a video block of size T based on a first and second binary string. In one example, the first binary …
- Who is the assignee on this patent?
- Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H04N19/88. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 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).