Prediction and Adaptive Scanning in a Block-Set Wavelet Image Coder
نویسندگان
چکیده
Conditional probability to predict sub-block significance improves the peak signal-to-noise ratio (PSNR) performance of a block-set wavelet image coder. Adaptive scanning of sub-blocks results in a further gain in PSNR performance. Together the related algorithmic changes introduced in this paper result in competitive PSNR performance without the need for an arithmetic coding stage. As a consequence, timing tests reveal that the critical decoder computational complexity is reduced.
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تاریخ انتشار 2005