Title :
Lifting based integer wavelet transform with binary coefficients
Author_Institution :
Dept. of Electron. Eng., LaTrobe Univ., Bundoora, Vic., Australia
Abstract :
A family of lifting based integer wavelet transform (IWT) that is parametrised in a simple manner by one free parameter is presented in this paper. The coefficients of the lifting filters in this family are binary numbers and therefore can be implemented efficiently without using any multipliers. By adjusting the free parameter, IWT with different properties and characteristics can be obtained. Included in this family is the well known MIT ´9/7´ pair which is known to be effective for image coding. A study of the non-linearity of this family of IWT is also performed.
Keywords :
data compression; image coding; wavelet transforms; MIT ´9/7´ pair; binary coefficients; binary numbers; free parameter; image coding; lifting based integer wavelet transform; nonlinearity; Arithmetic; Codecs; Computational efficiency; Convolution; Discrete wavelet transforms; Filter bank; Image coding; Signal processing; Transform coding; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010377
