Universiti Teknologi Malaysia Institutional Repository

Stack-run adaptive wavelet image compression using wavelet packets

Awan, A. Majid and Rajpoot, Nasir M. and Hussain, Syed Afaq and Md. Sap, Mohd. Noor (2007) Stack-run adaptive wavelet image compression using wavelet packets. Jurnal Teknologi Maklumat, 19 (2). pp. 101-114. ISSN 0128-3790

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Abstract

We report on the development of an adaptive wavelet image coder based on stack-run representation of the quantized coefficients. The coder works by selecting an optimal wavelet packet basis for the given image and encoding the quantization indices for significant coefficients and zero runs between coefficients using a 4-ary arithmetic coder. Due to the fact that our coder exploits the redundancies present within individual sub bands, its addressing complexity is much lower than that of the wavelet zerotree coding algorithms. Experimental results show coding gains of up to 1.4 dB over the benchmark wavelet coding algorithm.

Item Type:Article
Uncontrolled Keywords:lossless data compression, image compression, wavelet transform, adaptive wavelet transform, best basis selection
Subjects:T Technology > T Technology (General)
Divisions:Computer Science and Information System (Formerly known)
ID Code:8204
Deposited By: Norshiela Buyamin
Deposited On:02 Apr 2009 04:21
Last Modified:09 Jan 2014 03:39

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