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Error Concealment Based on Multiple Representation for Wireless Transmission of JPEG2000 Image
Yang Ou,Won-Young Lee(이원영),Taeuk Yang(양태욱),Sung Taek Chee(지성택),Kyung Hyune Rhee(이경현) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.1C
The transmission of multimedia information over error-prone channels such as wireless networks has become an important area of research. In this paper, we propose two Error Concealment (EC) schemes for wireless transmission of JPEG2000 image. The Multiple Representation (MR) is employed as the preprocessing in our schemes, whereas the main error concealing operation is applied in wavelet domain at receiver side. The compressed code-stream of several subsampled versions of original image is transmitted over a single channel with random bit errors. In the decoder side, the correctly reconstructed wavelet coefficients are utilized to recover the corrupted coefficients in other sub-images. The recovery is carried out by proposed basic (MREC-BS) or enhanced (MREC-ES) methods, both of which can be simply implemented. Moreover, there is no iterative processing during error concealing, which results a big time saving. Also, the simulation results confirm the effectiveness and efficiency of our proposed schemes.