Accelerated Analysis of Quad-trees in the Ezw Algorithm
نویسندگان
چکیده
Abstract. In this paper, a novel scheme for the analysis of quad-trees in the discrete wavelet spectrum of a digital image is proposed. The scheme can be successfully applied to any zero-tree based image encoder, such as the embedded zero-tree wavelet (EZW) algorithm of Shapiro and set partitioning in hierarchical trees (SPIHT) by Said and Pearlman. Exceptionally high performance of the proposed quadtree analysis scheme, in the sense of image encoding times, is demonstrated using the EZW algorithm and the discrete Le Gall wavelet transform.
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تاریخ انتشار 2010