Research on regions of interest coding based on compensation scheme

Li-bao Zhang; Ke Wang

doi:10.1117/12.539911

25 September 2003 Research on regions of interest coding based on compensation scheme

Li-bao Zhang, Ke Wang

Proceedings Volume 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition; (2003) https://doi.org/10.1117/12.539911
Event: Third International Symposium on Multispectral Image Processing and Pattern Recognition, 2003, Beijing, China

Abstract

Regions of Interest coding (ROI) is the important and convenient image coding technique and is supported by JPEG 2000. It enables a non-uniform distribution of the image quality between selected regions of interest and the background. This paper provides a novel ROI bitplants shift method based on compensation scheme called SHIFT-CS coding algorithm. The method firstly transmits the coding blocks of low-frequency important coefficients that are decoded. The residual coefficients in ROI mask can be transmitted on different bit-planes. When multiple regions of interest are encoded, every ROI has several bit-plane to be transmitted that can be resolved by the ROI's importance. In addition, different objectors can select different regions of interest by the low-quality reconstructive image according to different needs that realize to select ROI based on interactive net browser. The experiments show that SPIFT-CS method combines advantages of both ROI methods. Because the algorithm remain compliant with the MAXSHIFT decoding algorithm described in JPEG 2000 part 1, it is also simple and can be handled by any JPEG 2000 decoder.

Citation Download Citation

Li-bao Zhang and Ke Wang "Research on regions of interest coding based on compensation scheme", Proc. SPIE 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition, (25 September 2003); https://doi.org/10.1117/12.539911

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