An error resilience technique based on FMO and error propagation for H.264 video coding in error-prone channels

Vu, Tien Huu; Aramvith, Supavadee

doi:10.1109/icme.2009.5202472

Cited by 9 publications

(8 citation statements)

References 8 publications

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“…The two transcoding operations effectively allow retrofitting of FMO error resiliency to non-compliant codecs. In general, the explicit mode of FMO has been widely adopted for a variety of coding purposes, e.g., [33][34][35]. Research in [36] employed FMO's explicit mode for adaptive intra-coded MB grouping.…”

Section: Implementation With Fmomentioning

confidence: 99%

Data Partitioning Technique for Improved Video Prioritization

et al. 2017

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Abstract:A compressed video bitstream can be partitioned according to the coding priority of the data, allowing prioritized wireless communication or selective dropping in a congested channel. Known as data partitioning in the H.264/Advanced Video Coding (AVC) codec, this paper introduces a further sub-partition of one of the H.264/AVC codec's three data-partitions. Results show a 5 dB improvement in Peak Signal-to-Noise Ratio (PSNR) through this innovation. In particular, the data partition containing intra-coded residuals is sub-divided into data from: those macroblocks (MBs) naturally intra-coded, and those MBs forcibly inserted for non-periodic intra-refresh. Interactive user-to-user video streaming can benefit, as then HTTP adaptive streaming is inappropriate and the High Efficiency Video Coding (HEVC) codec is too energy demanding.

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Section: Implementation With Fmomentioning

confidence: 99%

Data Partitioning Technique for Improved Video Prioritization

et al. 2017

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“…There are two ways to define the importance level of an MB. One is by estimating its impact on the final video quality at the receiver side when this MB is lost, which includes the visual distortion from this MB, its neighbours and the following pictures, as done in [2][3][4]. This method involves transcoding, which increases the computation complexity and causes severe time delay.…”

Section: Introductionmentioning

confidence: 99%

A new error resilience scheme based on FMO and error concealment in H.264/AVC

Tan

Pearmain

2011

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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Slice group coding using Flexible Macroblock Ordering (FMO) based on Macroblock (MB) importance in H.264/AVC has been studied for providing higher error robustness in error prone environments. However, the efficiency still needs to be improved and the high computational and time cost it causes remains to be an issue. In this paper, an Adaptive Macroblock-to-slice Allocation map (MBAmap) Updating scheme is proposed based on our previous research work. The extra computational and time cost introduced is less than 10% compared to the conventional methods. The PSNR of the reconstructed video at the decoder side can be improved for up to 0.6dB compared to previous proposed method. A Slice Matching (SM) error concealment method is also introduced, which increases the PSNR for a further 0.2 to 0.4dB when applied with the slice group coding scheme.

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“…Using FMO to group MBs by estimating their contribution to current frame, a relative priority index at MB level is calculated and used to mark video packets accordingly. In [8], the authors identify a number of ways to mark MBs according to their effect on bit-count, distortion-from-error concealment, distortion-from- error-propagation and so on. The method proposed in [8] takes into account the bit-count, distortion impact if lost, and the motion vectors of the MBs to group them into a separate FMO slice.…”

Section: Introductionmentioning

confidence: 99%

“…In [8], the authors identify a number of ways to mark MBs according to their effect on bit-count, distortion-from-error concealment, distortion-from- error-propagation and so on. The method proposed in [8] takes into account the bit-count, distortion impact if lost, and the motion vectors of the MBs to group them into a separate FMO slice. In our paper, in contrast, a simple criterion is applied, reducing the implementation complexity.…”

Section: Introductionmentioning

confidence: 99%

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A prioritization scheme for H.264/AVC video congestion resilience with IEEE 802.11e

Moiron

Ali

Fleury

et al. 2010

2010 Wireless Advanced 2010

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Abstract-Intra-refresh is an efficient technique to mitigate temporal error propagation resulting from network packet losses. However, while including intra-refresh macroblocks (MBs) can prevent error propagation, conversely when network congestion occurs, packets carrying this type of MBs should be dropped at wireless network access time, in preference to dropping packets containing data of other types of MBs. Exploiting this observation, the proposed network access prioritization scheme combines intra-refresh MB lines with the H.264/AVC codec's Flexible Macroblock Ordering (FMO) to enhance congestion resilience. The proposed scheme is shown to improve the resulting video quality by up to 4 dB during periods of congestion. As an application of the proposed algorithm, the paper applies a crosslayer mapping of video traffic to IEEE802.11e access categories. The potential gains are demonstrated both for random packet drops at input buffers and for a wireless sensor network scenario.

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An error resilience technique based on FMO and error propagation for H.264 video coding in error-prone channels

Cited by 9 publications

References 8 publications

Data Partitioning Technique for Improved Video Prioritization

Data Partitioning Technique for Improved Video Prioritization

A new error resilience scheme based on FMO and error concealment in H.264/AVC

A prioritization scheme for H.264/AVC video congestion resilience with IEEE 802.11e

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