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Multi - Wavelet Domain Reconstruction of Lost Blocks in Wireless Image Transmission | ||
| Engineering and Technology Journal | ||
| Volume 24, Issue 6, June 2005, Pages 707-721 PDF (1.52 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.30684/etj.24.6.8 | ||
| Authors | ||
| Waleed A. Mahmoud1; Mutaz S. Abdul - Wahab2; Atheer A. Sabri | ||
| 1collage of Eng., University of Baghdad. | ||
| 2Electrical and Electronic Eng. Dept., University of Technology, | ||
| Abstract | ||
| bstract A fast scheme for multi - wavelet domain interpolation of lost image blocks in wireless image transmission is proposed in this paper . Instead of using common retransmission query protocols , the lost block is reconstructed in the multi - wavelet domain using the correlation between the lost block and its neighbors . The algorithm suggests that each tile is decomposed using a single level 2 - D DMWT ( 2 - Dimension Discrete Multi - Wavelet Transform ) instead of decomposing the tile into three level 2 - D DWT ( 2 - Dimension Discrete Wavelet Transform ) , as stated in the JPEG2000 standard . It can be easily seen that the reconstruction procedure is very simple because it only requires knowing the 2 - D DMWT of the surrounding tiles . Finally , it requires only to average the corresponding decomposed tiles . | ||
| Keywords | ||
| Keywords: multi - wavelet; lost blocks reconstruction; wireless transmission | ||
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