Flexible Complexity Control Solution for Transform Domain Wyner-Ziv Video Coding

HoangVan, Xiem

doi:10.1109/tbc.2012.2187611

Cited by 14 publications

(7 citation statements)

References 33 publications

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“…DSC has the characteristics of easy encoding and complex decoding, and are highly complementary with the traditional video encoding whose characteristics are reversed. In recent years, the research focus is on the distributed source encoding techniques based on Wyner–Ziv encoding, such as Pixel-domain Wyner–Ziv encoding and Transform-domain Wyner–Ziv encoding [53,55]. A rate compatible punctured turbo code (RCPT), which is often used in Wyner–Ziv encoder and decoder, is proposed in [56].…”

Section: Key Supporting Technologies For the Wmsnsmentioning

confidence: 99%

MB-OFDM-UWB Based Wireless Multimedia Sensor Networks for Underground Coalmine: A Survey

Han

Yang

You

2016

Sensors

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Safety production of coalmines is a task of top priority which plays an important role in guaranteeing, supporting and promoting the continuous development of the coal industry. Since traditional wireless sensor networks (WSNs) cannot fully meet the requirements of comprehensive environment monitoring of underground coalmines, wireless multimedia sensor networks (WMSNs), enabling the retrieval of multimedia information, are introduced to realize fine-grained and precise environment surveillance. In this paper, a framework for designing underground coalmine WMSNs based on Multi-Band Orthogonal Frequency-Division Multiplexing Ultra-wide Band (MB-OFDM-UWB) is presented. The selection of MB-OFDM-UWB wireless transmission solution is based on the characteristics of underground coalmines. Network structure and design challenges are analyzed first, which is the foundation for further discussion. Then, key supporting technologies and open research areas in different layers are surveyed, and we provide a detailed literature review of the state of the art strategies, algorithms and general solutions in these issues. Finally, other research issues like localization, information processing, and network management are discussed.

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Section: Key Supporting Technologies For the Wmsnsmentioning

confidence: 99%

MB-OFDM-UWB Based Wireless Multimedia Sensor Networks for Underground Coalmine: A Survey

Han

Yang

You

2016

Sensors

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“…Since DVC uses channel coding to correct errors occurring in SI, it is also very robust to error resilience. However, there is still much work to do before making it achieve coding performance comparable to conventional predictive video coding in terms of both subjective and objective quality [2,10]. One of the problems to solve in this effort is removing the blocking artifacts often found at its reconstructed video.…”

Section: Introductionmentioning

confidence: 99%

Reliability-based deblocking filter for distributed video coding

Dinh

Park

2012

2012 International Symposium on Communications and Information Technologies (ISCIT)

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Distributed video coding (DVC) is one of the new video coding techniques which can fulfill emerging key requirements of low computational complexity and low power consumption at encoder side. Because of different quality among motion-compensated blocks inside side information and effect of quantization, blocking artifacts occur and degrade quality of decoded Wyner-Ziv pictures both subjectively and objectively. In this paper, we propose a deblocking postfilter which aims not only to reduce the uncomfortable artifacts but also to improve coding efficiency by differentiating well-decoded blocks from poorly-decoded ones based on new concept of reliability. Experimental results show that the proposed method not only reduces blocking artifacts considerably but also gains up to 0.23 dB in term of rate distortion (RD) performance.

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“…Encoder Block Mode Decision (EBMD) is a useful method for improving the coding efficiency and many literatures [9,11,13,17,22,24,32] have focused on this method.…”

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confidence: 99%

“…In [11,17], in order to reduce the computational complexity, the mode selection algorithm uses the Sum of Absolute Difference (SAD) between the blocks as an indication of the temporal coherence solution.A bit plane Motion Estimation (ME) algorithm is proposed in [13] and the residual error of ME is used in the selection of the coding mode for each block. In [24], SI is required to be generated at the encoder and an iterative algorithm is proposed to select the mode dynamically to improve the accuracy of mode decision.…”

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confidence: 99%

A simple encoder scheme for distributed residual video coding

Zhao

Liu

et al. 2020

Multimed Tools Appl

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Rate-Distortion (RD) performance of Distributed Video Coding (DVC) is considerably less than that of conventional predictive video coding. In order to reduce the performance gap, many methods and techniques have been proposed to improve the coding efficiency of DVC with increased system complexity, especially techniques employed at the encoder such as encoder mode decisions, optimal quantization, hash methods etc., no doubt increase the complexity of the encoder. However, low complexity encoder is a widely desired feature of DVC. In order to improve the coding efficiency while maintaining low complexity encoder, this paper focuses on Distributed Residual Video Coding (DRVC) architecture and proposes a simple encoder scheme. The main contributions of this paper are as follows: 1) propose a bit plane block based method combined with bit plane re-arrangement to improve the dependency between source and Side Information (SI), and meanwhile, to reduce the amount of data to be channel encoded 2) present a simple iterative dead-zone quantizer with 3 levels in order to adjust quantization from coarse to fine. The simulation results show that the proposed scheme outperforms DISCOVER scheme for low to medium motion video sequences in terms of RD performance, and maintains a low complexity encoder at the same time. Keywords Distributed residual video coding (DRVC) Bit plane block based Low complexity encoder 1 IntroductionDistributed Video Coding (DVC), based on Slepian-Wolf theorems, is an emerging video coding paradigm and it shifts the computational complexity and storage burdens from encoder to decoder. It encodes video frames independently and decodes them jointly, which is a promising scheme for applications with limited resources [25], such as sensor networks, wireless video surveillance, etc. However, RD performance of DVC is still considerably less than that of conventional motion-compensation based video � Yunhui Xiong

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Flexible Complexity Control Solution for Transform Domain Wyner-Ziv Video Coding

Cited by 14 publications

References 33 publications

MB-OFDM-UWB Based Wireless Multimedia Sensor Networks for Underground Coalmine: A Survey

MB-OFDM-UWB Based Wireless Multimedia Sensor Networks for Underground Coalmine: A Survey

Reliability-based deblocking filter for distributed video coding

A simple encoder scheme for distributed residual video coding

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