Error-resilient image and video coding for wireless communication systems

Redmill, DW; Bull, David; Chung-How, J.; Kingsbury, Nick

doi:10.1049/ecej:19980404

Cited by 17 publications

(1 citation statement)

References 25 publications

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“…Consequently, being aware of the error source Manuscript received March 13, 2000;revised April 4, 2002. and adopting some proper action to handle the transmission errors become a very important issue. This is also the reason why more and more studies concerning error concealment [1]- [10], [13]- [26] and error resilient coding [11], [12] are proposed. Bit error detection, which is considered as the initial step toward error concealment, can be achieved by many ways, such as the invalid codeword detection.…”

Section: Introductionmentioning

confidence: 99%

Novel error concealment method with adaptive prediction of abrupt and gradual scene changes

Pei¹,

Chou²

Object Recognition Supported by User Interaction for Service Robots

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In this paper, the impact of the scene change on the conventional error concealment method is addressed and a novel error concealment method is proposed to improve the insufficiency of conventional temporal error concealment algorithm due to the occurrence of scene change. Combining with the low complexity scene change detection algorithm using macroblock type information, the corrupt blocks resulting from bit errors are concealed either temporally or spatially depending on whether or not an abrupt scene change is found. In the case of gradual scene change, a novel error concealment method of interpolation and extrapolation is proposed to utilize the linear property of gradual scene change sequence, and effectively reduce the concealment error in comparison with the conventional algorithm. Great improvement about 3 to 5 dB PSNR in average and 6 to 8 dB in some cases is obtained with very little overhead memory and computation.

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Section: Introductionmentioning

confidence: 99%