Architecture Design of Context-Based Adaptive Variable-Length Coding for H.264/AVC

Chen, Tung-Chien; Huang, Yu-Wen; Tsai, Chuan-Yung; Hsieh, Bing-Yu; Chen, Liang-Gee

doi:10.1109/tcsii.2006.880014

Cited by 38 publications

(38 citation statements)

References 12 publications

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“…From Table I, we can see that the throughput of the proposed design is 120 cycles/MB, which is smaller than all [3,4,5] does. In practice, with the method using the coded block pattern (CBP) to determine whether the blocks need to be encoded or not, the average cycles will be smaller than the worst case.…”

Section: Performance Analysis and Comparisonmentioning

confidence: 91%

“…The circuit occupies about 32 k gates at a core speed of 250 MHz. The comparison on hardware cost and processing speed of the proposed design with the existing design [3,4,5] is as Table I shows.…”

Section: Performance Analysis and Comparisonmentioning

confidence: 99%

“…The general approach to cut down the cycles is to increase the parallelism. Varieties of VLSI architectures for CAVLC are proposed in [3,4,5]. Chen et al [3] adopted a two-stage stage structure, but parallelism is not implemented in their work, which makes it require at most 500 cycles to process one MB and greatly restrict the throughput.…”

Section: Introductionmentioning

confidence: 99%

“…Varieties of VLSI architectures for CAVLC are proposed in [3,4,5]. Chen et al [3] adopted a two-stage stage structure, but parallelism is not implemented in their work, which makes it require at most 500 cycles to process one MB and greatly restrict the throughput. A parallel structure for Luma (Y) and Chroma (Cr and Cr) encoding is proposed in [4], however, this parallel approach introduces large hardware cost.…”

Section: Introductionmentioning

confidence: 99%

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A 4-way parallel CAVLC design for H.264/AVC 4Kx2K 60fps encoder

Zhong

Shen

Fan

et al. 2011

IEICE Electron. Express

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This paper presents a high performance design for ContextBased Adaptive Variable Length Coding (CAVLC) used in the H.264/ AVC standard. A two-stage encoder is proposed to make the scan and encode stage work simultaneously. The scan engine scans four coefficients at each cycle. Parallel encoder for four "levels" and parallel encoder for four "Run before" are adopted to accelerate the encode engine. Only 120 cycles at most are needed to process one MB. The proposed CAVLC encoder can support 4 Kx2 K@60 fps (frame per second) real-time encoding at 250 MHz and the gate count is about 32 k.

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Section: Performance Analysis and Comparisonmentioning

confidence: 91%

Section: Performance Analysis and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A 4-way parallel CAVLC design for H.264/AVC 4Kx2K 60fps encoder

Zhong

Shen

Fan

et al. 2011

IEICE Electron. Express

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“…There are two entropy coding implements in H.264/SVC one is based on variable length coding (VLC) and the other is based on binary arithmetic coding (BAC) both of which are applied in a context adaptive way, known as Context Adaptive Variable Length Coding (CAVLC) [31] and the other as CABAC [13] (refer to Section 1). The main difference between the two forms of entropy coding is that additional syntax elements are coded with CABAC such as: the intra prediction modes; the MB type; reference picture indexes; and motion vectors.…”

Section: Overview Of Svc With Cabacmentioning

confidence: 99%

Transparent encryption with scalable video communication: Lower-latency, CABAC-based schemes

Asghar

Kousar

Majid

et al. 2017

Journal of Visual Communication and Image Representation

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Review of Existing Statistical Codec Designs

Tian

Lian

2010

Entropy Coders of the H.264/AVC Standard

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Architecture Design of Context-Based Adaptive Variable-Length Coding for H.264/AVC

Cited by 38 publications

References 12 publications

A 4-way parallel CAVLC design for H.264/AVC 4Kx2K 60fps encoder

A 4-way parallel CAVLC design for H.264/AVC 4Kx2K 60fps encoder

Transparent encryption with scalable video communication: Lower-latency, CABAC-based schemes

Review of Existing Statistical Codec Designs

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