Spatial Concealment for Damaged Images Using H.264 (MPEG-4 AVC) Intra Prediction and Neighborhood Cliques

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2012, No. 10, pp. 1–10
Abstract: Intra prediction methods introduced by H.264/AVC and furthered by HEVC, beyond enhancing intra coding efficiency also provide a potent tool for spatial error/loss concealment and digital film restoration e.g. restoration of scratches. In this paper, a novel H.264/AVC intra prediction based algorithm for spatial concealment is introduced. The proposed algorithm utilizes reliable intra prediction direction information from available neighboring regions in the same image (or video frame) and synthesizes intra prediction directions most suitable for erroneous/lost/damaged image regions. The synthesized intra prediction directions are used to conceal the underlying artifacts through pixel domain interpolation. Distinguishing features of the current work contributing to its success are its use of (a) an accuracy assessment and consequent weighting of available neighbors' information, and (b) conditional propagation of available neighbors' information based on the concept of ‘neighborhood cliques’. Both features significantly improve the reliability of interpolation results. Proposed framework enables using both causal and non-causal information.
Publication Date: 2012-10-01
DOI: 10.5594/M001441
Link: https://doi.org/10.5594/M001441
Author(s): Seyfullah Halit OguzQualcomm, Inc. 5775 Morehouse Drive, San Diego, CA 92121
Copyright: © 2012 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

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Seyfullah Halit Oguz; Spatial Concealment for Damaged Images Using H.264 (MPEG-4 AVC) Intra Prediction and Neighborhood Cliques, SMPTE Meetings and Conferences ( October 2012); SMPTE, 2012. Available at https://doi.org/10.5594/M001441

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Seyfullah Halit Oguz; Spatial Concealment for Damaged Images Using H.264 (MPEG-4 AVC) Intra Prediction and Neighborhood Cliques, SMPTE Meetings and Conferences ( October 2012); SMPTE, 2012. Available at https://doi.org/10.5594/M001441

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<span class="citation">Seyfullah Halit Oguz; <cite>Spatial Concealment for Damaged Images Using H.264 (MPEG-4 AVC) Intra Prediction and Neighborhood Cliques</cite>, SMPTE Meetings and Conferences ( October 2012); SMPTE, 2012. Available at <a href="https://doi.org/10.5594/M001441" target="_blank" rel="noopener">https://doi.org/10.5594/M001441</a></span>

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Seyfullah Halit Oguz; <cite id="bib-10-5594-m001441">Spatial Concealment for Damaged Images Using H.264 (MPEG-4 AVC) Intra Prediction and Neighborhood Cliques</cite>, SMPTE Meetings and Conferences ( October 2012); SMPTE, 2012
<span class="doi">10.5594/M001441</span>
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