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The Color Fusion of Infrared and Visual Images Based on NSCT
2013 Seventh International Conference on Image and Graphics, 2013In the night vision fusion, traditional methods, such as the wavelet transform, always suffer from the problems of shift-variant, limited direction. In order to obtain a more ideal fused image, this paper proposes a new night vision fusion scheme based on NSCT (nonsubsampled contour let transform).
Yajie Wang +3 more
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MSVD based image watermarking in NSCT domain
2016 Fourth International Conference on Parallel, Distributed and Grid Computing (PDGC), 2016Image watermarking in wavelet domain has been emerged as an interesting area of research. However, classical wavelet transform, like DWT, lacks in providing directional information and is shift sensitive. These limitations can be overcome with the use of NSCT (Nonsubsampled contourlet transform), which is shift invariant and provides rich directional ...
Siddharth Singh +2 more
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An improved method of denoising shrink-function by NSCT
2011 International Conference on Multimedia Technology, 2011The threshold filtering based on multi-resolution is composed of the soft threshold and hard threshold. For the soft shrink-function, the filtered signal is excessively smooth. For the hard shrink-function, the filtered signal associated with the Gibbs phenomenon in the signal mutation after filtering.
null Yi-bing Li, null Zong-zhi Zhang
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An Image Fusion Algorithm Based on NSCT
Applied Mechanics and Materials, 2013The study proposed an improved NSCT fusion method based on the infrared and visible light images characteristics and fusion requirement. This paper improved the high-frequency coefficient and low-frequency coefficient fusion rules. The low-frequency sub-band images adopted the pixel feature energy weighted fusion rule.
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Image Segmentation Based on NSCT and BF-PSO Algorithm
2013Image segmentation is an important part of image processing. To improve the quality and the speed of the segmentation, a new method based on Non Subsampled Contourlet Transform (NSCT) and Bacterial Foraging-Particle Swarm Optimization (BF-PSO) algorithm is proposed in the paper.
Le Wang, Zhenbing Zhao
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A Novel Fusion Method Using NSCT and PCNN
Applied Mechanics and Materials, 2013An image fusion algorithm by combing Nonsubsampled Contourlet Transform and Pulse Coupled Neural Network is proposed in this paper. Two primitive matched images are decomposed in NSCT domain. The low frequency used the regional energy weighted fusion. The high frequency coefficients are input to the PCNN.
Hong Li +3 more
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An Improved NSCT of Fusion of Visible and Infrared Images
Proceedings of the 2019 4th International Conference on Robotics, Control and Automation, 2019An improved NSCT of infrared and visible light image fusion method is proposed, which aims at the problem of low contrast between target and background in infrared and visible light fusion images. Firstly, the infrared and visible images are preprocessed respectively.
Zeng Xiangjin, Chen jian, Liu Ke
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Fusion of Visual and Infrared Image Based on NSCT
Applied Mechanics and Materials, 2014Non-subsampled contourlet transform (NSCT) is the combination of the multi-scale analysis and multi-directional analysis in processing high-dimensional signals and has better approximation precision and better sparse description. A novel and efficient fusion method of infrared image and visible image based on NSCT is proposed.
Zi Hong Chen +3 more
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Image Fusion Based on NSCT and Fuzzy Logic
2010 International Conference on Multimedia Technology, 2010Nonsubsampled contourlet transform (NSCT) can provide flexible multiresolution, anisotropy, and directional expansion for images. Compared with the original contourlet transform, it is shift-invariant and can overcome the pseudo-gibbs phenomena around singularities. Fuzzy logic is an efficient intelligent method to handle uncertain information. In this
Xianyi Ren +3 more
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A novel image fusion algorithm using PCNN In NSCT domain
2016 9th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2016This paper proposed a novel image fusion framework based on PCNN in NSCT domain. Compared with the contourlet transform(CT), NSCT has translational invariance and can also overcome the image pseudo Gibbs phenomena around singularites. PCNN is evolved from mammal's visual cortex neuron model, and characterized by its pulse synchronization and ...
Yongxing Jia +4 more
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