TY - GEN
T1 - Adaptive denoising based on lifting scheme
AU - Wu, Yonghong
AU - Pan, Quan
AU - Zhang, Hongcai
AU - Zhang, Shaowu
PY - 2004
Y1 - 2004
N2 - Observing that the Haar wavelet is sensitive to step edges, and the CDF(2.2) wavelet which is a subset of the Cohen-Daubechies-Feauveau family performs well for smooth signals, we present a new adaptive wavelet transform via the lifting scheme for noise reduction. Unlike many popular wavelets that adapt scale-by-scale, the proposed wavelet can adapt point-by-point. Experiment results show that the proposed method has advantages of both the Haar and CDF(2,2) wavelets and performs well for the smooth and edge-dominated regions. Moreover, the interval of the switch thresholding parameter of the proposed wavelet is given by experiments.
AB - Observing that the Haar wavelet is sensitive to step edges, and the CDF(2.2) wavelet which is a subset of the Cohen-Daubechies-Feauveau family performs well for smooth signals, we present a new adaptive wavelet transform via the lifting scheme for noise reduction. Unlike many popular wavelets that adapt scale-by-scale, the proposed wavelet can adapt point-by-point. Experiment results show that the proposed method has advantages of both the Haar and CDF(2,2) wavelets and performs well for the smooth and edge-dominated regions. Moreover, the interval of the switch thresholding parameter of the proposed wavelet is given by experiments.
KW - Adaptive wavelet transform
KW - Lifting scheme
KW - Switch thresholding parameter
UR - https://www.scopus.com/pages/publications/7744243060
U2 - 10.1109/ICOSP.2004.1452654
DO - 10.1109/ICOSP.2004.1452654
M3 - 会议稿件
AN - SCOPUS:7744243060
SN - 0780384067
T3 - International Conference on Signal Processing Proceedings, ICSP
SP - 352
EP - 355
BT - 2004 7th International Conference on Signal Processing Proceedings (ICSP'04)
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Signal Processing, ICSP 2004
Y2 - 31 August 2004 through 4 September 2004
ER -