Turbo codes for image transmission-a joint channel and source decoding approach

Peng, Zhuogang; Huang, Y.-F.; Costello, Daniel J.

doi:10.1109/49.848241

Cited by 46 publications

(29 citation statements)

References 7 publications

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“…Several methods of resolution on this new subject have been studied in recent publications [3][4][5][6] . In this letter, we present a new super-trellis decoding with source a priori information for VLCs with turbo codes.…”

Section: Introductionmentioning

confidence: 99%

New iterative super-trellis decoding with source a priori information for VLCs with turbo codes

2007

J. of Electron.(China)

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A novel Joint Source and Channel Decoding (JSCD) scheme for Variable Length Codes (VLCs) concatenated with turbo codes utilizing a new super-trellis decoding algorithm is presented in this letter. The basic idea of our decoding algorithm is that source a priori information with the form of bit transition probabilities corresponding to the VLC tree can be derived directly from sub-state transitions in new composite-state represented super-trellis. A Maximum Likelihood (ML) decoding algorithm for VLC sequence estimations based on the proposed super-trellis is also described. Simulation results show that the new iterative decoding scheme can obtain obvious encoding gain especially for Reversible Variable Length Codes (RVLCs), when compared with the classical separated turbo decoding and the previous joint decoding not considering source statistical characteristics.

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Section: Introductionmentioning

confidence: 99%

New iterative super-trellis decoding with source a priori information for VLCs with turbo codes

2007

J. of Electron.(China)

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“…Based on the results of error detection, the soft channel values are modified and fed back to the channel decoder to be used in the next iteration. Peng et al [6][7][8] proposed a similar scheme using turbo codes to transmit JPEG images [6], MPEG-1 video [6], vector-quantized images [7], and sub-band coded images [8]. The source decoders in the schemes in [5][6][7][8] only detects syntax errors.…”

Section: Introductionmentioning

confidence: 99%

“…Peng et al [6][7][8] proposed a similar scheme using turbo codes to transmit JPEG images [6], MPEG-1 video [6], vector-quantized images [7], and sub-band coded images [8]. The source decoders in the schemes in [5][6][7][8] only detects syntax errors. None of these schemes attempt to conceal errors before information is fed back to the channel decoder.…”

Section: Introductionmentioning

confidence: 99%

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Iterative joint source–channel decoding of H.264 compressed video

Levine

Lynch

Le‐Ngoc

2010

Signal Processing: Image Communication

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“…In [10], the authors improved Turbo decoder performance by modifying channel soft values based on the source information.…”

Section: Introductionmentioning

confidence: 99%

A novel bitstream level joint channel error concealment scheme for realtime video over wireless networks

Ding

Roy

Ieee Infocom 2004

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Abstract-With the increasing trend towards wireless multimedia transmission, robust video transmission over time-varying wireless links becomes increasingly important. The question for realtime video is, given the bandwidth and delay constraints, how to achieve maximal visual quality when the channel is subjected to random and bursty errors. The goal of this paper is to salvage as many data from the damaged packets as possible for the highest possible visual quality. In this work, we propose a bitstream level error correction/concealment method using reliability information from soft output channel decoder. Results show that the proposed method can effectively combat residual errors in typical error prone wireless links such as 3G wireless systems, consequently achieving very high after-concealment video quality.Index Terms-Error detection and correction, error concealment, H.263, MPEG-4, WCDMA, 3G wireless systems, channel coding, Turbo decoder.

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Turbo codes for image transmission-a joint channel and source decoding approach

Cited by 46 publications

References 7 publications

New iterative super-trellis decoding with source a priori information for VLCs with turbo codes

New iterative super-trellis decoding with source a priori information for VLCs with turbo codes

Iterative joint source–channel decoding of H.264 compressed video

A novel bitstream level joint channel error concealment scheme for realtime video over wireless networks

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