TY - GEN
T1 - Nonlocal patch functional minimization for image denoising using nonsubsampled contourlet
AU - Wan, Hui
AU - Tao, Ran
PY - 2011
Y1 - 2011
N2 - The nonsubsampled contour let transform (NSCT) is an excellent multi scale and multidirection representation for images, born in redundant and shift-invariant quality suitable for denoising. Most NSCT or NSCT-like denoising methods borrow the mature algorithms from wavelets, and are restricted by the precision of the prior model to describe the coefficients statistics. This paper presents a discrete regularization approach relying on the nonlocal weighted patches function and the NSCT sub band estimator, to relieve the effect of prior precision while suppressing the additive noise and the resultant artifacts. Results on the PSNR and vision comparisons with the advanced denoising algorithms demonstrate the superiority of the proposed method.
AB - The nonsubsampled contour let transform (NSCT) is an excellent multi scale and multidirection representation for images, born in redundant and shift-invariant quality suitable for denoising. Most NSCT or NSCT-like denoising methods borrow the mature algorithms from wavelets, and are restricted by the precision of the prior model to describe the coefficients statistics. This paper presents a discrete regularization approach relying on the nonlocal weighted patches function and the NSCT sub band estimator, to relieve the effect of prior precision while suppressing the additive noise and the resultant artifacts. Results on the PSNR and vision comparisons with the advanced denoising algorithms demonstrate the superiority of the proposed method.
KW - Gaussian scale mixtures
KW - image denoising
KW - nonlocal means
KW - nonsubsampled contourlet transform
UR - http://www.scopus.com/inward/record.url?scp=84860624015&partnerID=8YFLogxK
U2 - 10.1109/IMCCC.2011.188
DO - 10.1109/IMCCC.2011.188
M3 - Conference contribution
AN - SCOPUS:84860624015
SN - 9780769545196
T3 - Proceedings - 2011 International Conference on Instrumentation, Measurement, Computer, Communication and Control, IMCCC 2011
SP - 740
EP - 743
BT - Proceedings - 2011 International Conference on Instrumentation, Measurement, Computer, Communication and Control, IMCCC 2011
T2 - 1st International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC2011
Y2 - 21 October 2011 through 23 October 2011
ER -