Two error resilient coding schemes for wavelet-based image transmission based on data embedding and genetic algorithms

Li Wei Kang, Jin Jang Leou*

*此作品的通信作者

研究成果: 會議貢獻類型會議論文同行評審

10 引文 斯高帕斯(Scopus)

摘要

For an entropy-coded wavelet-based image, such as a JPEG-2000 image, a transmission error in a codeword will not only affect the underlying codeword but also may affect subsequent codewords, resulting in a great degradation of the received image. In this study, two error resilient coding schemes for wavelet-based image transmission based on data embedding and genetic algorithms (GA's) are proposed. In this study, as JPEG-2000, an image is decomposed into 6 wavelet levels (levels 0-5). For level 0, an error resilient coding scheme based on data embedding and side-match vector quantization is employed. For level 1, the proposed basic scheme uses the embedded important data for a corrupted code block to conceal the corrupted code block, whereas the proposed enhanced scheme uses a GA-based error concealment scheme to conceal the corrupted code block. For level 2, the embedded important data for a corrupted code block are used to conceal the corrupted code block. For levels 3-5, the wavelet coefficients of each corrupted code block are simply replaced by zeros. Based on the simulation results obtained in this study, the performances of the two proposed schemes are better than that of the three existing approaches for comparison. The proposed schemes can recover high-quality wavelet-based JPEG-2000 images from the corresponding corrupted images up to a bit error rate of 0.5%.

原文英語
頁面461-464
頁數4
出版狀態已發佈 - 2003
對外發佈
事件Proceedings: 2003 International Conference on Image Processing, ICIP-2003 - Barcelona, 西班牙
持續時間: 2003 9月 142003 9月 17

其他

其他Proceedings: 2003 International Conference on Image Processing, ICIP-2003
國家/地區西班牙
城市Barcelona
期間2003/09/142003/09/17

ASJC Scopus subject areas

  • 硬體和架構
  • 電腦視覺和模式識別
  • 電氣與電子工程

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