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Parallel CABAC Decoding Using Entropy Slices

a cabac and entropy technology, applied in the field of parallel cabac decoding using entropy slices, can solve the problems of inherently lossless compression technique, similar algorithms, and large amount of processing to decod

Inactive Publication Date: 2010-04-22
TEXAS INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such it is an inherently lossless compression technique.
CABAC is only supported in Main and higher profiles and requires a considerable amount of processing to decode compared to other similar algorithms.
CABAC achieves 9%-14% better compression compared to CAVLC, with the cost of increased complexity.
The use of CABAC can create a performance bottleneck for hardware decoders with the high-definition (HD) video requirements.

Method used

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  • Parallel CABAC Decoding Using Entropy Slices
  • Parallel CABAC Decoding Using Entropy Slices
  • Parallel CABAC Decoding Using Entropy Slices

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Embodiment Construction

[0019]Specific embodiments of the invention will now be described in detail with reference to the accompanying figures. Like elements in the various figures are denoted by like reference numerals for consistency.

[0020]Certain terms are used throughout the following description and the claims to refer to particular system components. As one skilled in the art will appreciate, components in digital systems may be referred to by different names and / or may be combined in ways not shown herein without departing from the described functionality. This document does not intend to distinguish between components that differ in name but not function. In the following discussion and in the claims, the terms “including” and “comprising” are used in an open-ended fashion, and thus should be interpreted to mean “including, but not limited to . . . .” Also, the term “couple” and derivatives thereof are intended to mean an indirect, direct, optical, and / or wireless electrical connection. Thus, if a ...

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Abstract

A method of video encoding is provided that includes performing context-adaptive binary arithmetic coding (CABAC) on a plurality of syntax element values in a slice to generate a plurality of entropy-encoded syntax element values, generating an entropy slice header to identify the plurality of entropy-encoded syntax element values as an entropy slice, wherein the entropy slice header comprises context model initialization information, and outputting the entropy slice header and the plurality of entropy encoded syntax element values.

Description

CLAIM OF PRIORITY UNDER 35 U.S.C. 119(e)[0001]The present application claims priority to U.S. Provisional Patent Application No. 61 / 106,323, filed Oct. 17, 2008, entitled “Method and Apparatus for Video Processing in Context-Adaptive Binary Arithmetic Coding,” which is incorporated by reference herein in its entirety.BACKGROUND OF THE INVENTION[0002]The demand for digital video products continues to increase. Some examples of applications for digital video include video communication, security and surveillance, industrial automation, and entertainment (e.g., DV, HDTV, satellite TV, set-top boxes, Internet video streaming, digital cameras, video jukeboxes, high-end displays and personal video recorders). Further, video applications are becoming increasingly mobile as a result of higher computation power in handsets, advances in battery technology, and high-speed wireless connectivity.[0003]Video compression and decompression is an essential enabler for digital video products. Compres...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N11/02
CPCH03M7/4006H04N19/13H04N19/61H03M7/48
Inventor DEMIRCIN, MEHMET UMUTBUDAGAVI, MADHUKAR
Owner TEXAS INSTR INC
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