Psychophysically derived quantisation model for efficient DWT image coding

Ferguson, K. L. and Allinson, Nigel (2002) Psychophysically derived quantisation model for efficient DWT image coding. IEE Proceedings: Vision, Image and Signal Processing, 149 (1). pp. 51-56. ISSN 1350-245X

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Item Type:Article
Item Status:Live Archive


An efficient method for the optimum quantisation of the luminance and chrominance components for discrete wavelet transform (DWT) still image coding, based on current psychophysical evidence, is described. Its practical application to image compression is presented. This new approach is further supported by experimental work which compares perceived DWT image quality with conventional JPEG-encoding, that is block-based discrete cosine transform (DCT) coding, on the basis of quantisation distortion.

Keywords:Cosine transforms, Image compression, Image quality, Imaging techniques, Wavelet transforms, Discrete wavelet transforms (DWT), Image coding
Subjects:G Mathematical and Computer Sciences > G400 Computer Science
Divisions:College of Science > School of Computer Science
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ID Code:8572
Deposited On:26 Apr 2013 10:12

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