Method and apparatus for determining whether adjacent macroblocks are located in the same slice
US8265164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2007 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Jun 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a method for determining whether a current macroblock and an adjacent macroblock thereof are located in the same slice. The method is used in a predetermined process for a block-based digitally encoded image. The block-based digitally encoded image is represented as an encoded bit-stream and each macroblock therein is assigned a sequence characteristic number. The method includes: providing a memory space for storing and tracing a slice changing point; initializing the slice changing point to a predetermined number; checking the encoded bit-stream, and when the current slice is determined to change, setting the slice changing point to a derived sequence characteristic number derived from the sequence characteristic number of the current macroblock; and determining whether the current macroblock and the adjacent block thereof are in the same slice according to a comparison result between the sequence characteristic number of the adjacent block and the slice changing point. The invention also discloses an apparatus for performing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.