Optimal entropy-constrained non-uniform scalar quantizer design for low bit-rate pixel domain DVC

In this paper, an optimal entropy-constrained non-uniform scalar quantizer is proposed for the pixel domain DVC. The uniform quantizer is efficient for the hybrid video coding since the residual signals conforming to a single-variance Laplacian distribution. However, the uniform quantizer is not opt...

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Vydáno v:	Multimedia tools and applications Ročník 70; číslo 3; s. 1799 - 1824
Hlavní autoři:	Wu, Bo, Zhang, Nan, Ma, Siwei, Zhao, Debin, Gao, Wen
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Boston Springer US 01.06.2014 Springer Springer Nature B.V
Témata:	Algorithms Analysis Applied sciences Artificial intelligence Biomedical engineering Codes Coding, codes Computer Communication Networks Computer Science Computer science; control theory; systems Counters Data Structures and Information Theory Design Dynamic programming Efficiency Entropy Exact sciences and technology Information, signal and communications theory Multimedia communications Multimedia Information Systems Optimization Partitions Pattern recognition. Digital image processing. Computational geometry Pixels Quantization Scalars Signal and communications theory Special Purpose and Application-Based Systems Studies Telecommunications and information theory Tradeoffs DVC Optimal quantizer Non-uniform scalar quantizer Video coding Histogram Lagrangian Rate distortion theory Mixture theory Updating Iterative method Conditional probability Joint distribution Adaptive method Laplacian Variance Image quality Image coding Signal quantization Probability density function Low bit rate Multiple channel Monotonicity
ISSN:	1380-7501, 1573-7721
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