Title :
Integer wavelet transform for medical image compression
Author_Institution :
Dept. of Electron. Eng., La Trobe Univ., Bundoora, Vic., Australia
Abstract :
The Integer Wavelet Transform (IWT) is a transform that maps integers to integers and can thus be used for the lossless compression of medical images. A class of IWT which are parametrized simply by one free parameter is presented in this work. The class of IWT is obtained by a lifting based factorization on a class of 6/10 filter pair. By adjusting the free parameter, IWT with different properties and characteristics can be obtained and this feature can be utilized in an adaptive system. Within this class are lifting filters with rational coefficients which are easier to implement than the irrational counterpart.
Keywords :
data compression; discrete wavelet transforms; image coding; medical image processing; integer wavelet transform; lifting based factorization; lossless compression; medical image compression; rational coefficients; Adaptive filters; Biomedical imaging; Channel bank filters; Discrete wavelet transforms; Filter bank; Image coding; Image resolution; Signal resolution; Spatial resolution; Wavelet transforms;
Conference_Titel :
Intelligent Information Systems Conference, The Seventh Australian and New Zealand 2001
Print_ISBN :
1-74052-061-0
DOI :
10.1109/ANZIIS.2001.974104
