Image Denoising Using Neighbouring Contourlet Coefficients
ISNN '08 Proceedings of the 5th international symposium on Neural Networks: Advances in Neural Networks, Part II
Foundations and Trends in Signal Processing
The Autonomous Underwater Vehicle Vision Denoising Method of Surfacelet Based on Sample Matrix
ICIRA '08 Proceedings of the First International Conference on Intelligent Robotics and Applications: Part I
Multifocus image fusion using the nonsubsampled contourlet transform
Signal Processing
Implementational aspects of the contourlet filter bank and application in image coding
EURASIP Journal on Advances in Signal Processing
Shearlet-based total variation diffusion for denoising
IEEE Transactions on Image Processing
Wavelet-based SAR image despeckling and information extraction, using particle filter
IEEE Transactions on Image Processing
Invariant pattern recognition using contourlets and AdaBoost
Pattern Recognition
The Nonsubsampled Contourlet Transform for Enhancement of Microcalcifications in Digital Mammograms
MICAI '09 Proceedings of the 8th Mexican International Conference on Artificial Intelligence
Image fusion based on a new contourlet packet
Information Fusion
Contourlet transform based complex diffusion for ultrasonic speckle reduction
BioMED '08 Proceedings of the Sixth IASTED International Conference on Biomedical Engineering
IEEE Transactions on Image Processing
Design of directional filter banks with arbitrary number of subbands
IEEE Transactions on Signal Processing
IEEE Transactions on Image Processing
Rotation invariant watermark embedding based on scale-adapted characteristic regions
Information Sciences: an International Journal
Expert Systems with Applications: An International Journal
SAR image despeckling using undecimated directional filter banks and mean shift
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Adaptive directional wavelet transform based on directional prefiltering
IEEE Transactions on Image Processing
Contourlet-based image watermarking using optimum detector in a noisy environment
IEEE Transactions on Image Processing
A wavelet-based image denoising using least squares support vector machine
Engineering Applications of Artificial Intelligence
A color multi-focus image fusion algorithm with nonsubsampled contourlet transform in space domain
CAR'10 Proceedings of the 2nd international Asia conference on Informatics in control, automation and robotics - Volume 3
The discrete shearlet transform: a new directional transform and compactly supported shearlet frames
IEEE Transactions on Image Processing
Uniform discrete curvelet transform
IEEE Transactions on Signal Processing
LMMSE-based image denoising in nonsubsampled contourlet transform domain
ICISP'10 Proceedings of the 4th international conference on Image and signal processing
A novel color image watermarking scheme in nonsampled contourlet-domain
Expert Systems with Applications: An International Journal
Crack image enhancement of track beam surface based on nonsubsampled contourlet transform
LSMS/ICSEE'10 Proceedings of the 2010 international conference on Life system modeling and and intelligent computing, and 2010 international conference on Intelligent computing for sustainable energy and environment: Part I
A feature level multimodal approach for palmprint identification using directional subband energies
Journal of Network and Computer Applications
Biological image fusion using a NSCT based variable-weight method
Information Fusion
SAR image denoising using the non-subsampled contourlet transform and morphological operators
MICAI'10 Proceedings of the 9th Mexican international conference on Advances in artificial intelligence: Part I
Journal of Mathematical Imaging and Vision
Image denoising with anisotropic bivariate shrinkage
Signal Processing
Similarity-based multimodality image fusion with shiftable complex directional pyramid
Pattern Recognition Letters
Pixel-level image fusion with simultaneous orthogonal matching pursuit
Information Fusion
Images registration based on mutual information and nonsubsampled contourlet transform
AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
Computers and Electrical Engineering
Geometrically invariant image watermarking using SVR correction in NSCT domain
Computers and Electrical Engineering
A new SVM-based image watermarking using Gaussian-Hermite moments
Applied Soft Computing
Computer Methods and Programs in Biomedicine
International Journal of Computer Applications in Technology
Journal of Visual Communication and Image Representation
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
Shift-invariant texture retrieval using P- contourlet
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
A 2d rigid point registration for satellite imaging using genetic algorithms
ICISP'12 Proceedings of the 5th international conference on Image and Signal Processing
Using anisotropic bivariate threshold function for image denoising in NSCT domain
IScIDE'11 Proceedings of the Second Sino-foreign-interchange conference on Intelligent Science and Intelligent Data Engineering
Video denoising based on adaptive shrinkage in surfacelet transform domain
IScIDE'11 Proceedings of the Second Sino-foreign-interchange conference on Intelligent Science and Intelligent Data Engineering
A high capacity and strong robust fingerprinting for compressed images
Computers and Electrical Engineering
ICCVG'12 Proceedings of the 2012 international conference on Computer Vision and Graphics
A flexible directional image representation using pseudo polar fourier transform based DFBs
PCM'12 Proceedings of the 13th Pacific-Rim conference on Advances in Multimedia Information Processing
Tunable-Q contourlet-based multi-sensor image fusion
Signal Processing
Human face super-resolution based on NSCT
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part II
Mutual spectral residual approach for multifocus image fusion
Digital Signal Processing
Image denoising using SVM classification in nonsubsampled contourlet transform domain
Information Sciences: an International Journal
Image inpainting with nonsubsampled contourlet transform
Pattern Recognition Letters
Gender Recognition Based On Combining Facial and Hair Features
Proceedings of International Conference on Advances in Mobile Computing & Multimedia
Gender Recognition Based On Combining Facial and Hair Features
Proceedings of International Conference on Advances in Mobile Computing & Multimedia
Directional Multiscale Processing of Images Using Wavelets with Composite Dilations
Journal of Mathematical Imaging and Vision
| Hi-index | 0.02 |
In this paper, we develop the nonsubsampled contourlet transform (NSCT) and study its applications. The construction proposed in this paper is based on a nonsubsampled pyramid structure and nonsubsampled directional filter banks. The result is a flexible multiscale, multidirection, and shift-invariant image decomposition that can be efficiently implemented via the a trous algorithm. At the core of the proposed scheme is the nonseparable two-channel nonsubsampled filter bank (NSFB). We exploit the less stringent design condition of the NSFB to design filters that lead to a NSCT with better frequency selectivity and regularity when compared to the contourlet transform. We propose a design framework based on the mapping approach, that allows for a fast implementation based on a lifting or ladder structure, and only uses one-dimensional filtering in some cases. In addition, our design ensures that the corresponding frame elements are regular, symmetric, and the frame is close to a tight one. We assess the performance of the NSCT in image denoising and enhancement applications. In both applications the NSCT compares favorably to other existing methods in the literature