An FMO based error resilience method in H.264/AVC and its UEP application in DVB-H link layer

Tan, Keyu; Pearmain, A.J.

doi:10.1109/icme.2010.5583887

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…The encoder would then refresh those MBs which had more of an impact on error propagation. Alternatively the authors of [75] proposed a scheme in which FMO is combined with adaptive MB grouping. Because such schemes are at an individual MB level, they significantly increase the computational complexity arising from the required video content analysis.…”

Section: Protection For Entropy Codingmentioning

confidence: 99%

Innovations in Video Error Resilience and Concealment

Fleury¹,

Moiron²,

Ghanbari³

2011

RPTSP

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Router buffer overflow and random bit errors have always been a problem in the Internet. The growth in multimedia applications in mobile extensions of the Internet has increased the threat from error bursts, random errors, and packet erasures that are a manifestation of wireless channels. Source-coded error resilience has come to prominence in the H.264/AVC codec standard, and this paper reviews such innovations surrounding this codec. Some innovations are new variants of an existing technique such as datapartitioning and some are entirely new such as the powerful dispersed-mode flexible macroblock ordering. Other techniques, such as reversible variable length coding, were not be transferred to H.264 from earlier codecs and, hence, innovations are proposed to still provide robust entropy coding. Other variants such as adaptive intra-refresh are still being experimented with. When error resilience or other protection methods fail to present an adequate video frame then error concealment can be brought to bear. This paper reviews error concealment which is important to commercial companies as they are able to distinguish their codec from others. The paper considers spatial, temporal and hybrid error concealment methods. Though this paper contains over one hundred references it can only provide a slice through this rich field.

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Section: Protection For Entropy Codingmentioning

confidence: 99%

Innovations in Video Error Resilience and Concealment

Fleury¹,

Moiron²,

Ghanbari³

2011

RPTSP

View full text Add to dashboard Cite

show abstract

“…The encoder would then refresh those macroblocks which were more subject to error propagation. Other schemes [6] [7] were also proposed where 'explicit' FMO has been employed with adaptive macroblock grouping. The grouping schemes were based on individual MB importance measuring the quality impact when an individual MB is lost.…”

Section: Introductionmentioning

confidence: 99%

Enhanced slicing for robust video transmission

Moiron

Ali

Ghanbari

et al. 2011

2011 IEEE EUROCON - International Conference on Computer as a Tool

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Abstract-This paper presents a low complexity yet effective slicing scheme for enhanced error resiliency. The proposed scheme uses Flexible Macroblock Ordering (FMO) without requiring any decoder modification without any increase in bitrate or computational complexity. Frame level packet priority is then provided based on slice position within the frame. Experimental results indicate that, when FMO is combined with Unequal Error Protection, the scheme can achieve quality gains up to 4 dB over other slicing techniques.

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“…The encoder would then refresh those MBs which had more impact on error propagation. Alternatively, [5] proposed a scheme in which FMO is combined with adaptive MB grouping. Because such schemes work at an individual MB level, they significantly increase the computational complexity and memory footprint arising from the required video content analysis.…”

Section: Introductionmentioning

confidence: 99%

Prioritized packetization for video with intra-refresh macroblock line

Ali

Moiron

Ghanbari

et al. 2011

2011 IEEE International Conference on Multimedia and Expo

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When transmitting video over low bandwidth networks a cyclic intra-refresh (IR) line is preferable to periodic intra frames as an error mitigation technique. This paper shows that IR lines introduce non-uniform error sensitivity among regions within a picture that are identifiable by the position of the IR line. To exploit this characteristic, a packet prioritization scheme is proposed in which priorities are assigned on a packet-level basis. Thus, higher priority packets can be given better protection. The proposed scheme is demonstrated for prioritized access to a congested IEEE 802.11e network. Experimental results indicate that, when compared with the classic non-prioritized packet access scheme, the proposed scheme can achieve quality gains of up to 3.6 dB for a 10% data loss rate.

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An FMO based error resilience method in H.264/AVC and its UEP application in DVB-H link layer

Cited by 7 publications

References 19 publications

Innovations in Video Error Resilience and Concealment

Innovations in Video Error Resilience and Concealment

Enhanced slicing for robust video transmission

Prioritized packetization for video with intra-refresh macroblock line

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