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篇名
Image Compression using Lifting-based Wavelet Transform and Modified Zero-Tree Coding Scheme
作者 Yao-Tien Chen (Yao-Tien Chen)
英文摘要
A coding approach based on modified embedded zero-tree scheme is proposed for image compression. At first, an image is decomposed using lifting wavelet transform. Then, the obtained wavelet coefficients are encoded by the proposed modified embedded zero-tree scheme. Finally, adaptive arithmetic coding is adopted to encode the coding coefficients. Lifting wavelet transform accomplishes in-place computation, fast forward/backward transformation, and integer-to-integer transformation, as well as modified embedded zero-tree scheme takes the statistical distribution of image data to encode wavelet coefficients; thus, an optimal coding approach is obtained for lossless data compression and progressive transmission. Experiments show that proposed approach achieves the best compression ratio compared with ”JPEG”, ”EZW”, and ”SPIHT” schemes.
起訖頁 13-20
關鍵詞 embedded zero-tree schemelifting wavelet transformin-place computationinteger-to-integer transformationprogressive transmission
刊名 影像處理暨通訊期刊  
期數 201312 (5:1期)
出版單位 元培醫事科技大學行動科技應用系
該期刊-上一篇 An Efficient Data Gathering and Notification System for Wireless Sensor Network with Geospatial Interoperability
該期刊-下一篇 A Webpage System for Medical Image Processing on Computed Tomography Images
 

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