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RVLC decoding scheme for improved data recovery in MPEG-4 video coding standard

Sunil Kumar, Liyang Xu
2004 Real-time imaging  
Therefore, the data recovery scheme suggested in MPEG-4 can still be used as default scheme. r  ...  In this paper, we present a low-complexity 'reversible variable length code' (RVLC) decoding scheme for MPEG-4 video that recovers more blocks and sometimes more macroblocks (MBs) from error propagation  ...  Proposed improved data recovery scheme The RVLC-based data recovery scheme used in MPEG-4 is known to improve the PSNR performance of decoded video frames in the presence of errors, when compared to conventional  ... 
doi:10.1016/j.rti.2004.07.003 fatcat:qe3jlamoxzezjph7l352gb2fdi

Data recovery using improved RVLC in MPEG-4

Sunil Kumar, Liyang Xu, Andrew G. Tescher, Bhaskaran Vasudev, V. Michael Bove, Jr., Ajay Divakaran
2003 Multimedia Systems and Applications VI  
In addition, we present more conditions for better error detection than those suggested in MPEG-4, and also discuss properties of error propagation in corrupted video packets.  ...  It is shown that the proposed scheme achieves better data recovery, both in terms of PSNR and perceptual quality.  ...  The above RVLC-based data recovery scheme used in MPEG-4 is known to improve the PSNR performance of decoded video frames in the presence of errors, when compared to conventional variable length Huffman  ... 
doi:10.1117/12.514465 fatcat:eqopalzsbzawtoolfsqtnym4aa

Error-resilient video coding in the ISO MPEG-4 standard

R. Talluri
1998 IEEE Communications Magazine  
This article describes error resilience aspects of the video coding ABSTRACT techniques that are standardized in the IS0 MPEG-4 standard.  ...  The specific tools adopted into the 150 MPEG-4 standard t o enable the communication of compressed video data over noisy wireless channels are presented in detail.  ...  Note that the MPEG-4 standard does not standardize the method in which an MPEG-4 decoder has to apply the RVLCs for error resilience.  ... 
doi:10.1109/35.685373 fatcat:lx5muesernfzxioam3dwo35zri

Low power reversible variable length decoder for MPEG-4 based on fast codeword detection and table partition

Yeong-Kang Lai, Yu-Fan Lai, Yin-Ruey Huang
2011 2011 IEEE 15th International Symposium on Consumer Electronics (ISCE)  
Current ITU H.263+ and ISO MPEG-4 standards have used reversible variable length coding (RVLC) which provides greater error robustness than non-reversible counterparts (VLC) due to the growing need for  ...  In this paper, a new method for RVLC decoding is described.  ...  MPEG-4 video coding standard (i.e., MPEG-4 Part 2) is designed to support a wide range of applications from computer, entertainment and telecommunication industries.  ... 
doi:10.1109/isce.2011.5973907 fatcat:5atvgrxj5rdfrfvyz2njzcgori

Coding efficiency evaluation of RVLC codes

Liyang Xu, S. Kumar, M.K. Mandal
2005 48th Midwest Symposium on Circuits and Systems, 2005.  
In this paper, we develop a mathematical approach to calculate the efficiency of RVLC code table for coding symbols with generalized Gaussian distribution. I.  ...  Variable length coding (VLC) has become an important part of visual compression standards such as JPEG, MPEG, and H.26x.  ...  The reversible variable length code (RVLC) has been used to improve error resiliency in the MPEG-4 [1] , and H.263 [2] video coding standards.  ... 
doi:10.1109/mwscas.2005.1594411 fatcat:fhn7qjwvx5c3dcjbeq23yrf7ne

Wireless Video Communications [chapter]

Madhukar Budagavi, Raj Talluri
2002 The Communications Handbook  
Most of these strategies are incorporated in the MPEG-4 video coding standard and the H.263 (Version 2) video coding standard [3] .  ...  The MPEG-4 video coding standard is the first video coding standard to address the problem of efficient representation of visual objects of arbitrary shape.  ... 
doi:10.1201/9781420041163-91 fatcat:qtoj4sdgnvhbdjghvtssunofwu

Wireless Video Communications [chapter]

Madhukar Budagavi, Raj Talluri
1999 Electrical Engineering Handbook  
Most of these strategies are incorporated in the MPEG-4 video coding standard and the H.263 (Version 2) video coding standard [3] .  ...  The MPEG-4 video coding standard is the first video coding standard to address the problem of efficient representation of visual objects of arbitrary shape.  ... 
doi:10.1201/noe0849321672.ch31 fatcat:hha6bfygjbb3xptkaq43zggfj4

Error-resilient coding in JPEG-2000 and MPEG-4

I. Moccagatta, S. Soudagar, J. Liang, H. Chen
2000 IEEE Journal on Selected Areas in Communications  
We also review the state-of-the-art techniques adopted in the MPEG-4 standard for robust transmission of video and still texture data.  ...  The rapid growth of mobile communications and the widespread access to information via the Internet have resulted in a strong demand for robust transmission of compressed image and video data for various  ...  ACKNOWLEDGMENT The authors would like to express their gratitude to all the individuals who participated (and continue to participate) in the MPEG-4 and JPEG-2000 activity on error resilience for their  ... 
doi:10.1109/49.848245 fatcat:isuqqxutljezbg6kiazxt2cmje

Error resilience in network-driven Wyner-Ziv video coding

Limin Liu, Pau Sabrià, Luís Torres, Edward J. DelpIII, John G. Apostolopoulos, Amir Said
2006 Visual Communications and Image Processing 2006  
A hybrid scheme with selective coding is proposed to improve the coding efficiency when transmission delay occurs.  ...  Previously we presented a network-driven Wyner-Ziv video coding method, in which the motion vectors are derived at the decoder and sent back to the encoder through a reliable backward channel.  ...  The Reversible Variable Length Code (RVLC) is utilized in the MPEG-4 error resilient tools for the recovery of the residual coefficients. 18 It enables both forward and backward decoding thus it prevents  ... 
doi:10.1117/12.643571 fatcat:jihydddhxrhbno7gxsuwjugmsu

A Review of Error Resilience Techniques in Video Streaming

A. Panayides, M.S. Pattichis, C.S. Pattichis, A. Pitsillides
2006 Zenodo  
Delivering video data of satisfactory quality over unreliable networks - such as the internet or wireless networks - is a demanding area which has received significant attention of the research community  ...  This paper aims to summarize the most significant approaches for: error resilience, error concealment and joint encoder-decoder error control techniques, and to provide a thorough discussion of the benefits  ...  TABLE 1 1 ERROR RESILIENCE TECHNIQUES Technique Video Coding Channel Standards Adaptive Technique Robust Resync MPEG-2/ NO Entropy Markers H.263 Coding RVLC MPEG-4/ NO H.263 Data Partitioning MPEG-2/ NO  ... 
doi:10.5281/zenodo.2555843 fatcat:37vzgqg2yvaunp6ayppynoup2y

Robust video coding algorithms and systems

J.D. Villasenor, Ya-Qin Zhang, Jiangtao Wen
1999 Proceedings of the IEEE  
We describe design and implementation strategies for error-robust video communications with an emphasis on techniques compatible with the coding approaches used in the ISO (MPEG-4) and ITU standards organizations  ...  These techniques include modifications to the video coding algorithms as well as to the system layers that perform packetization and multiplexing.  ...  Hashfiled for their input and contribution on MPEG-4 error resilience, WIT, and HMT testbeds.  ... 
doi:10.1109/5.790633 fatcat:4lg7hsiabvegxfyskncsiuobtu

MPEG video markup language and its applications to robust video transmission

Xiaoming Sun, Chang-Su Kim, C.-C. Jay Kuo
2005 Journal of Visual Communication and Image Representation  
In this research, we develop the MPEG video markup language (MPML) to describe MPEG-4 video contents.  ...  As an XML designed specifically for MPEG-4 bitstreams, MPML provides a friendly support for random access, portability, interoperability, flexibility, and extendibility.  ...  MPML description for MPEG-4 video content Terminologies The current video coding standards, including MPEG-4, emphasize the sequential coding fashion.  ... 
doi:10.1016/j.jvcir.2005.03.007 fatcat:qlnbz5f4bffvlblklsjfr335c4

A New Soft Variable Length Decoder for Wireless Video Transmission

Tsu-Ming Liu, Sheng-Zen Wang, Bai-Jue Shieh, Chen-Yi Lee
2007 IEEE transactions on circuits and systems for video technology (Print)  
We averagely improve the peak signal-to-noise ratio by 0.4 2.9 dB as compared with traditional VLC decoding and standard-support reversible VLC decoding schemes.  ...  The proposed design is evaluated using the model of MPEG-4/UDP-Lite/UEP/ AWGN, and hence it is standard-compliant.  ...  They are extensively used in recent image and video coding standards including JPEG, MPEG-1/2/4 and the new design of H.264 [2] .  ... 
doi:10.1109/tcsvt.2006.887133 fatcat:2rb6ti6asrhyfeihkh4scowmoi

Error resilience video transcoding for wireless communications

A. Vetro, Jun Xin, Huifang Sun
2005 IEEE wireless communications  
In this article, we provide an overview of the error-resilience tools found in todays video coding standards and describe a variety of techniques that may be used to achieve error-resilence video transcoding  ...  In this article, we provide an overview of the error-resilience tools found in today's video coding standards and describe a variety of techniques that may be used to achieve error-resilience video transcoding  ...  Another form of temporal localization is reference picture selection, which was introduced in the H.263 and MPEG-4 standards for improved error-resilience.  ... 
doi:10.1109/mwc.2005.1497854 fatcat:6o3xdq2yfvd7vd6lddnuagwge4

Innovations in Video Error Resilience and Concealment

Martin Fleury, Sandro Moiron, Mohammed Ghanbari
2011 Recent Patents on Signal Processing  
Source-coded error resilience has come to prominence in the H.264/AVC codec standard, and this paper reviews such innovations surrounding this codec.  ...  When error resilience or other protection methods fail to present an adequate video frame then error concealment can be brought to bear.  ...  In previous codecs (H.263 and MPEG-4), Reversible Variable Length Coding (RVLC) [49] was employed.  ... 
doi:10.2174/1877612411101020124 fatcat:2snaikfnzndlxpk536exft5tb4
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