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In this paper, a shape adaptive wavelet transform coding scheme for arbitrarily shaped visual objects which is also scalable and progressive is proposed. The proposed scheme uses the shape adaptive wavelet transform (SA-DWT) of extracted objects for generating the wavelet coefficients and the wavelet difference method (SWDR) for progressive scalable coding and decoding. The method is developed for...
This paper presents a medical image transmission scheme based on the wavelet-based coding technique and supports the scalability and region of interest properties. The proposed scalable wavelet difference reduction scheme (SWDR), is based on the wavelet difference reduction (WDR) method, progresses adaptively to get different resolution images at any bit rate required, and supports spatial and signal...
This paper presents a lossy/lossless coding approach for medical images and textured data. The coding scheme is designed to suit a selective region growing method and the wavelet difference reduction method (Tian and Wells, 1996) is used to code the selected region. Zero tree concept is used to rearrange the wavelet coefficients after the singular value decomposition based texture classification in...
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