Joint source/channel coding for image transmission with JPEG2000 over memoryless channels. |
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Authors: | Zhenyu Wu Ali Bilgin Michael W Marcellin |
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Affiliation: | Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721-0104, USA. zywu@ece.arizona.edu |
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Abstract: | The high compression efficiency and various features provided by JPEG2000 make it attractive for image transmission purposes. A novel joint source/channel coding scheme tailored for JPEG2000 is proposed in this paper to minimize the end-to-end image distortion within a given total transmission rate through memoryless channels. It provides unequal error protection by combining the forward error correction capability from channel codes and the error detection/localization functionality from JPEG2000 in an effective way. The proposed scheme generates quality scalable and error-resilient codestreams. It gives competitive performance with other existing schemes for JPEG2000 in the matched channel condition case and provides more graceful quality degradation for mismatched cases. Furthermore, both fixed-length source packets and fixed-length channel packets can be efficiently formed with the same algorithm. |
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