Results 141 to 150 of about 538 (196)

A compressed image encryption algorithm leveraging optimized 3D chaotic maps for secure image communication. [PDF]

Sci Rep
Tiwari A, Diwan P, Diwan TD, Miroslav M, Samal SP.   +4 more
europepmc   +1 more source

Method of Improved Fuzzy Contrast Combined Adaptive Threshold in NSCT for Medical Image Enhancement. [PDF]

Biomed Res Int, 2017
Zhou F, Jia Z, Yang J, Kasabov N.
europepmc   +1 more source

An Image Fusion Method Based on Sparse Representation and Sum Modified-Laplacian in NSCT Domain. [PDF]

Entropy (Basel), 2018
Li Y, Sun Y, Huang X, Qi G, Zheng M, Zhu Z.   +5 more
europepmc   +1 more source

Bayesian decision based fusion algorithm for remote sensing images. [PDF]

Sci Rep
Wu L, Jiang X, Zhu W, Huang Y, Liu K.
europepmc   +1 more source

A New Non-Aliasing Nonsubsampled Contourlet Transform [PDF]

Key Engineering Materials, 2011
The factors of aliasing in the nonsubsampled Contourlet transform(NSCT) has been analyzed.The primary reason has been pointed that the à trous algorithm binary zero-interpolation brought about the width of the filter rapid increase and border distortion (that is aliasing).
He Yan, Ying Jun Pan
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The Nonsubsampled Contourlet Transform: Theory, Design, and Applications

IEEE Transactions on Image Processing, 2006
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 ...
Minh Do, Jianping Zhou, M N Do
exaly   +3 more sources

Image inpainting with nonsubsampled contourlet transform

Pattern Recognition Letters, 2013
A new algorithm for image inpainting based on the searching of redundancy for corner points across different scales and orientations is proposed. The searching utilises the nonsubsampled contourlet transform (NSCT) of the original image. The target region is filled-in following the priority which is given to the corner points that accumulate a high ...
J Fdez-Valdivia, Rosa Maria Rodriguez Sanchez   +1 more
exaly   +3 more sources

Multifocus image fusion using the nonsubsampled contourlet transform

Signal Processing, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bao-Long Guo
exaly   +3 more sources

Compressed sensing MRI based on nonsubsampled contourlet transform [PDF]

2008 IEEE International Symposium on IT in Medicine and Education, 2008
How to reduce acquisition time is very important in magnetic resonance imaging (MRI). Compressed sensing MRI emerges recently to suppress the aliasing when undersampling k-space data is employed. However, typical sparse transform for compressed sensing MRI ever used is wavelet, which only captures limited directional information with decay rate M1.
Qu, Xiaobo, Guo, Di, Chen, Zhong, Cai, Congbo   +3 more
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Image Enhancement Based on Nonsubsampled Contourlet Transform [PDF]

2009 Fifth International Conference on Information Assurance and Security, 2009
Based on nonsubsampled contourlet transform and image statistical property, an image enhancement method is presented. A noise variance estimate algorithm is given using nonsubsampled Laplace Pyramid decompose, and a wake edge enhancement algorithm using directional local neighborhood is proposed.
Yuxin Ma, Jiancang Xie, Jungang Luo
openaire   +2 more sources