A rate-distortion optimization model for SVC inter-layer encoding and bitstream extraction

Peng, Wen-Hsiao; Zao, John K.; Huang, Hsueh-Ting; Wang, Tse-Wei; Huang, Lin-Shung

doi:10.1016/j.jvcir.2008.08.002

Cited by 14 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the future, it would be desirable to develop an adaptive decision strategy of scalability options for resource-constrained networks by taking into account the drawn observations in this paper as guidelines. Previously, there have been some work of proposing such strategies (e.g., [8], [23]), which are not usually based on thorough subjective evaluation across all three scalability dimensions. Moreover, it is useful to develop objective quality measures of video sequences generated by scalable video coding based on the results reported here, which can be used in adaptive strategies for real-time automatic quality measurement and monitoring of delivered content.…”

Section: Discussionmentioning

confidence: 99%

Subjective Quality Evaluation via Paired Comparison: Application to Scalable Video Coding

Lee¹,

Simone²,

Ebrahimi³

2011

IEEE Trans. Multimedia

View full text Add to dashboard Cite

Abstract-Scalable video coding is a powerful solution for content delivery in many interactive multimedia services due to its adaptability to varying terminal and network constraints. In order to successfully exploit such adaptability, it is necessary to understand users' preference among various scalability options and consequently develop an optimal bit rate adaptation strategy. In this paper, we present a study of subjective quality assessment of scalable video coding, which investigates the influence of the combination of scalability options on perceived quality with the goal of providing guidelines for an adaptive strategy that selects the optimal combination for a given bandwidth constraint. In particular, the study is based on paired comparison of stimuli that is suitable for our goal due to its simplicity and easiness. We propose a new method, called Paired Evaluation via Analysis of Reliability (PEAR), which analyzes paired comparison results and produces not only quality scores but also intuitive measures of confidence of the scores for significance analysis. Results and analysis of extensive subjective tests for two different scalable video codecs and high definition contents are described, from which general consistent conclusions are drawn. The video and subjective data used in the paper are publicly available to the research community. 1

show abstract

Section: Discussionmentioning

confidence: 99%

Subjective Quality Evaluation via Paired Comparison: Application to Scalable Video Coding

Lee¹,

Simone²,

Ebrahimi³

2011

IEEE Trans. Multimedia

View full text Add to dashboard Cite

show abstract

“…The innovative solution is able to explore the particular data dependence among consecutive layers in a recursive way, systematically reusing flexible hardware modules, in order to reduce the encoder complexity [3].…”

Section: Proposed Solutionmentioning

confidence: 99%

“…The main obstacle to implement a multi-layer video encoding in real-time is the extremely high processing load demanded, which, in some cases, requiring dozens of tera instructions per second. Considering this serious limitation, practical solutions for this kind of codec should evaluate the use of dedicated hardware acceleration engines, as emergent platforms of DSP (Digital Signal Processing) multi-cores or programmable logic devices [3].…”

Section: Introductionmentioning

confidence: 99%

Efficient hardware solution for practical intra h.264/SVC video encoder implementation

Hüsemann

Susin

Roesler

et al. 2011

Proceedings of the 24th Symposium on Integrated Circuits and Systems Design

View full text Add to dashboard Cite

The emergent standard H.264/SVC (scalable video coding) combines distinct complex techniques in order to allow efficient data compression considering data among consecutive layers. In practice, a complete implementation of this scalable encoder is not trivial, since the global complexity increases proportionally with the number of layers involved. Considering that, this paper proposes an innovative scalable architecture, which adopts a flexible approach able to reuse computational hardware modules in order to perform iteratively the SVC intra computational coding, for both the base layer and enhancement layers. In order to validate this proposal it was implemented in VHDL and compared with other conventional hardware approaches, confirming significant gain in terms of occupied memory and total chip area.

show abstract

“…Since these two methods still involve high computational complexity, we address this problem in a novel way. Another work [6] proposed to search for adaptation track and obtained some criteria for SVC coding. It recommends some findings but no general rules have been summarized.…”

Section: Introductionmentioning

confidence: 99%

“…There are other ideas to carry out the rate adaptation. As in [6], it is also possible to consider the bitstream adaptation to lower spatial resolution and restore the decoded video to the target resolution by spatial interpolation. The interested readers are advised to refer to this alternative adaptation method in [7], [8] and its application in wireless video streaming in [9] for details.…”

Section: Introductionmentioning

confidence: 99%

A fast rate adaptation scheme for SVC based on the packet dependencies

Chen

Chuah

et al. 2013

2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)

View full text Add to dashboard Cite

The Scalable Video Coding (SVC) standard offers multiple scalabilities while maintaining high coding efficiency. However, the joint coding of multiple scalabilities complicates the rate adaptation as the SVC packets possess different priorities. To address this challenge, we propose in this paper a fast rate adaptation scheme for SVC in absence of the original video sequence. Specifically, we present an efficient algorithm to extract the SVC bitstream by a packet prioritization scheme, which is based on the analysis of packet dependencies (PD) in encoding of full scalability. Experimental results demonstrate that the proposed scheme achieves significant improvement in PSNR over the basic bit extraction scheme in SVC and attains comparable PSNR performance to the Quality Layer based rate adaptation scheme while significantly reducing the computational cost.

show abstract

A rate-distortion optimization model for SVC inter-layer encoding and bitstream extraction

Cited by 14 publications

References 10 publications

Subjective Quality Evaluation via Paired Comparison: Application to Scalable Video Coding

Subjective Quality Evaluation via Paired Comparison: Application to Scalable Video Coding

Efficient hardware solution for practical intra h.264/SVC video encoder implementation

A fast rate adaptation scheme for SVC based on the packet dependencies

Contact Info

Product

Resources

About