Reduced complexity H.264/AVC transrating based on frequency selectivity for high-definition streams

In this paper, we present a complete transrating architecture for H.264/AVC high-definition video bitstreams. Based on frequency-selective filtering, this architecture has a minimized complexity and is drift-error-free for intra-coded pictures. Moreover, both Video Quality Metric (VQM) experiments a...

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Bibliographic Details
Published in:IEEE transactions on consumer electronics 2010-11, Vol.56 (4), p.2430-2437
Main Authors: Deknudt, Christophe, Corlay, Patrick, Bacquet, Anne-Sophie, Zwingelstein-Colin, Marie, Coudoux, François-Xavier
Format: Article
Language:English
Subjects:
Architecture
Automatic voltage control
Bit rate
Complexity
Computer Science
Decoding
Distortion
Electronics
Encoding
Engineering Sciences
Filtering
Filtration
Networking and Internet Architecture
PSNR
Quantization
Signal and Image Processing
Streams
Transforms
Visual
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Summary:In this paper, we present a complete transrating architecture for H.264/AVC high-definition video bitstreams. Based on frequency-selective filtering, this architecture has a minimized complexity and is drift-error-free for intra-coded pictures. Moreover, both Video Quality Metric (VQM) experiments and subjective analysis show that the algorithm gives satisfactory results in terms of visual quality. Our solution introduces blurring only compared to conventional requantization transrating, which also introduces other artifacts as distortion. We propose an easy and efficient bitrate estimation model controlled by transrating parameters.
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2010.5681124