首页> 外文会议>International Symposium on Computer and Information Sciences(ISCIS 2005); 20051026-28; Istanbul(TR) >Performance Study of an Image Restoration Algorithm for Bursty Mobile Satellite Channels
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Performance Study of an Image Restoration Algorithm for Bursty Mobile Satellite Channels

机译:突发移动卫星信道图像恢复算法的性能研究

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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.
机译:错误隐藏技术提供了一种简单的框架,可以补偿传输失真,而不会引起额外的延迟和浪费带宽资源,这对于资源有限的网络上的实时应用至关重要。在[1]中,我们提出了一种利用离散小波变换(DWT)的错误隐藏技术,将基于宏块的最佳邻居匹配(BNM)信息嵌入到原始图像中,以利用空间冗余。在本文中,我们研究了突发移动卫星信道中的最佳邻域匹配和基于小波的错误隐藏(BWEC)算法的性能。我们表明,该技术特别适合那些遭受大范围丢包损失的突发性移动卫星信道,其代价是原始图像的感知质量和计算负担有所降低。

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