Performance enhancement of error resilient entropy coding on block based bitstream of SPIHT

Authors:
Jeong-Sig Kim;Keun-Young Lee
Affiliations:
Image Communication Lab., School of Information and Communication Engineering, SungKyunKwan University, Suwon, Kyunggi-do, Republic of Korea;Image Communication Lab., School of Information and Communication Engineering, SungKyunKwan University, Suwon, Kyunggi-do, Republic of Korea
Venue:
MMM'07 Proceedings of the 13th International conference on Multimedia Modeling - Volume Part II
Year:
2007

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Abstract

Standard image and video techniques designed to provide the bitstream with some level of protection against channel errors usually add a controlled amount of redundancy. This redundancy may take the form of resynchronization makers which enable the decoder to restart the decoding process from a known state in the event of transmission errors. The Error Resilient Entropy Code(EREC) is a well known algorithm designed to reduce the added redundant information. Wavelet tree coding provides the most efficient of image compression currently available with respect to rate-distortion. This paper presents a performance enhancement of EREC on the bitstream of SPIHT, which greatly improves its ability to maintain the compressed image quality in the event of random errors. This paper demonstrates that Efficient and Robust EREC(EREREC) improves the image quality of SPIHT in the presence of channel errors. The simulation result shows that the quality of transmitted image is improved when compared to the existing EREC on SPIHT.