Title :
MDL based algorithm for packet-DWT tree pruning
Author :
Dobrescu, Radu ; Dobrescu, Matei
Author_Institution :
POLYTECHNICA Univ. of Bucharest, Romania
Abstract :
The paper presents an algorithm for both bio-medical signal compression and denoising which realise the pruning of a DWT tree by wavelet thresholding. This algorithm uses a MDL criterion for evaluating the noisy wavelet coefficients. The performances show a significant advantage when compared with those obtained by using other algorithms.
Keywords :
data compression; discrete wavelet transforms; image coding; image denoising; medical image processing; trees (mathematics); bio-medical signal compression; discrete wavelet transform; minimum description length criterion; noisy wavelet coefficient; packet-DWT tree pruning; signal denoising; wavelet thresholding; Discrete wavelet transforms; Frequency; Low pass filters; Narrowband; Noise reduction; Predictive models; Sampling methods; Testing; Tree graphs; Wavelet packets;
Conference_Titel :
Video/Image Processing and Multimedia Communications, 2003. 4th EURASIP Conference focused on
Print_ISBN :
953-184-054-7
DOI :
10.1109/VIPMC.2003.1220484
