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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Performance Study of an Image Restoration Algorithm for Bursty Mobile Satellite Channels
verfasst von : Fatih Alagöz, Gürkan Gür, Mohammed AbdelHafez
Erschienen in: Computer and Information Sciences - ISCIS 2005
Verlag: Springer Berlin Heidelberg
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Error-concealment techniques provide a simple framework to compensate transmission distortions without incurring additional delays and wasting bandwidth resources which are crucial for real-time applications over networks with limited resources. In [1], we have presented an error concealment technique utilizing discrete wavelet transform (DWT) for embedding macroblock-based best-neighborhood-matching (BNM) information into the original image in order to utilize spatial redundancy. In this paper, we investigate the performance of Best-neighborhood-matching and Wavelets based Error-Concealment (BWEC) algorithm in bursty mobile satellite channels. We show that this technique is specifically promising for bursty mobile satellite channels suffering a wide range of packet losses, at the expense of some degradation in the perceptual quality of the original image and computational burden.