題名: Image Coding Using Adaptive Wavelet Zerotree
作者: Hsieh, Ming-Shing
Tseng, Din-Chang
Chuang, Yuan-Da
關鍵字: image compression
discrete wavelet transform
EZW
P-zerotree
期刊名/會議名稱: 2001 NCS會議
摘要: Wavelet image decompositions generate a tree structured components that provide a hierarchical data structure for representing images. A new class of recently proposed image compression algorithms has focused on new ways for exploiting dependencies between this hierarchy of wavelet coefficients using zerotree data structures. This paper deals with a particular type of adaptive subband image coding where we focus on the image coder’s ability to adjust its coding length of each coefficient of high frequency subbands. Our model is inspired by a variation on the embedded zerotree wavelet (EZW). Our subband image coder based on the proposed adaptive quantization idea exhibits excellent rate-distortion performance. For popular test images, it is comparable or superior to most of the state-of-the-art coders in the literature.
日期: 2006-10-17T07:03:57Z
分類:2001年 NCS 全國計算機會議

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