2014
DOI: 10.1049/el.2014.1055
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Edge‐based spatial concealment of digital dropout error in degraded archived media

Abstract: A spatial concealment technique, based on the concept of the strength of an edge, is proposed for 'digital dropout' error, evident in old archived media. As long as the presence of pathological motion is observed in video sequences where current state-of-the-art methods fail to reproduce correct information, such spatial restoration offers a much better solution in terms of quality and complexity. Furthermore, relevant edge-based weighted interpolation is able to restore complicated edges and complex textures … Show more

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Cited by 7 publications
(4 citation statements)
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References 6 publications
(9 reference statements)
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“…This approach works well with sufficient information from nearby edges but does not produce better results in heavy losses. The relevant edges in the presence of digital drop out errors are estimated through canny edge detector [20]. This approach produces better results in linear motion only.…”
Section: A Spatial Error Concealmentmentioning
confidence: 99%
“…This approach works well with sufficient information from nearby edges but does not produce better results in heavy losses. The relevant edges in the presence of digital drop out errors are estimated through canny edge detector [20]. This approach produces better results in linear motion only.…”
Section: A Spatial Error Concealmentmentioning
confidence: 99%
“…This approach produces a defined number of computations, and is suitable for images having significant edges with details. The Canny edge detector is used to detect relevant edges in order to conceal digital dropout errors for the content of digital video tapes in [11]. This technique can restore complex edges and non-linear features with controlled computational complexity.…”
Section: A Intra-frame Error Concealment Techniquesmentioning
confidence: 99%
“…This approach can reconstruct complex textures, but is computationally complex and requires accelerated hardware. The approaches presented in [10][11][12] produce a better reconstruction performance with simple operations and are suitable for the random loss of data.…”
Section: A Intra-frame Error Concealment Techniquesmentioning
confidence: 99%
“…Moreover, Kokaram's system often falls short in responding to the errors occurring in consecutive frames at the same position. It also shows shortcomings in detecting some other major errors, such as blotches, digital dropout, Betacam dropout, blockiness etc., as discussed in [8–13].…”
Section: Introductionmentioning
confidence: 99%