Data partitioning and reversible variable length codes for robust video communications

Li, A.H.; Kittitornkun, Surin; Hu, Yu-Hen; Park, Dong-Seek; Villasenor, John

doi:10.1109/dcc.2000.838186

Cited by 16 publications

(8 citation statements)

References 1 publication

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“…The capability about resuming data will prevent error diffusion [3] . Under some given conditions the decoder could detect the exact position of the error bit, which is especially important in some communication systems.…”

Section: C-e Rvlcsmentioning

confidence: 99%

A Novel Joint Source-Channel Code------ Cost-evaluating Symmetrical Reversible Variable-length Code

Hui

Cui

Shao

et al. 2006

2006 8th International Conference on Signal Processing

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Joint source-channel coding and decoding is the hotspot in the field of coding recently. Realize joint source-channel coding (JSCC) with variable-length code, which can improve the transmission efficiency greatly.The paper adopts a kind of novel coding method, and constructs the cost-evaluating symmetrical reversible variable-length code that is fit for realizing joint source-channel coding and decoding. Finally the excellent simulation results have been get depending on the BSC and AWGN channels.Fix-length codes (FLCs) and variable-length codes (VLCs) both can realize JSCC, but the transmission efficiency of variable-length code is much higher than the other. One problem that how to solve the error diffusion taken by VLCs appears, and now we know Reversible variable-length codes (RVLCs) can resolve it exactly. But the traditional RVLCs has many problems on coding efficiency, error resilient capability and so on. So we propose a kind of novel RVLCs called Cost evaluating symmetrical reversible variable-length codes (C-E RVLCs). It is more sufficient than Takishima algorithm and makes the hanmming distance of the Takishima RVLC bigger. In this paper, we introduce the ultimatum, design rule and performance analysis of C-E RVLCs. Furthermore we propose the JSCC scheme and its simulation results. C-E RVLCsSymmetrical reversible variable-length code (RVLCs) is the VLC with strong bit-error resilience, which can be decoded in both forward and backward directions. RVLCs received extensive attention especially during the development of the new video standards H.263+ and MPEG-4. Fraenkel and Klein proposed the necessary conditions of the RVLCs from the fixed code length. Takishima, Wada and Murakami proposed the first RVLCs codeword based on Huffman codes. Jiangtao Wen and Villasenor proposed novel asymmetrical RVLCs [2] that based on the exponential code length RLCs (Golomb-Rice code and exp-GR code).So RVLCs finally were adopted as the standards of MPEG-4.The reference [1] shows that the traditional RVLCs proposed by Takishima realized the transformation from Huffman codes to RVLCs, but the code-length vector is initialize by Huffman codes, which leads to the total average length of RVLC is bigger than Huffman code.

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Section: C-e Rvlcsmentioning

confidence: 99%

A Novel Joint Source-Channel Code------ Cost-evaluating Symmetrical Reversible Variable-length Code

Hui

Cui

Shao

et al. 2006

2006 8th International Conference on Signal Processing

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“…So when a decoder detects an error while decoding a bit stream in a forward direction, it jumps to the next resynchronization marker and decodes the bit stream in the backward direction until it encounters an error, and based on the locations of these two errors, the decoder can recover some of the data between the two consecutive resynchronization markers that would otherwise have been discarded (Talluri, 1998). According to Li et al (2000), RVLC can be used in conjunction with data partitioning, where data partitioning is used to separate the less important information bits from the most important information bits and RVLC is used in coding the most important information bits so that the decoder is able to recover data within the erroneous segments (Villasenor et al, 1999;Li et al, 2000). RVLC has been adopted in both MPEG-4 and H.263, in conjunction with insertion of synchronized markers (Wang et al, 2000).…”

Section: Error Resiliencementioning

confidence: 99%

QoS in Telemedicine

Malindi¹

2011

Telemedicine Techniques and Applications

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“…Therefore, by means of DP a more fine-grained form of UEP is achieved than in the earlier schemes with scalable rateless coding. Work on combining FEC with DP [9] prior to rateless coding also aimed to deal with [10] the greater risk if priority data were to occur later in the compressed bitstream.…”

Section: Introductionmentioning

confidence: 99%

H.264 video streaming with data-partitioning and Growth codes

Razavi

Fleury

Altaf

et al. 2009

2009 16th IEEE International Conference on Image Processing (ICIP)

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This paper demonstrates that Growth codes, based on Raptor channel coding, allow incremental protection of H.264 video codec data-partitioned Network Adaption Layer units. When combined with increased protection of video reference frames, in an ADSL erasure channel up to 10 dB in video quality (PSNR) can be gained through this scheme compared to equal error protection with rateless codes. Equivalent gains occur in a wireless channel from combining data-partitioning with error protection. The bitrate overhead from data-partitioning is also shown to be less than from other H.264 error resilient tools.

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Data partitioning and reversible variable length codes for robust video communications

Cited by 16 publications

References 1 publication

A Novel Joint Source-Channel Code------ Cost-evaluating Symmetrical Reversible Variable-length Code

A Novel Joint Source-Channel Code------ Cost-evaluating Symmetrical Reversible Variable-length Code

QoS in Telemedicine

H.264 video streaming with data-partitioning and Growth codes

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