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《Journal of Southeast University(Natural Science Edition)》 2010-S1
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Nonsubsampled contourlet-based anisotropic diffusion filtering for infrared image denoising

Ni Chao1 Li Qi2 Xia Liangzheng2 ( 1 School of Mechanical and Electronic Engineering,Nanjing Forestry University,Nanjing 210037,China) ( 2 School of Automation,Southeast University,Nanjing 210096,China)  
According to the characteristics of infrared image,a method of nonsubsampled contourletbased anisotropic diffusion filtering for infrared image denoising is proposed. First,nonsubsampled pyramid technique is used to decompose noisy image into lowpass subband and multi-scale bandpass subbands. Nonlinear anisotropic diffusion filtering is performed in all bandpass nonsubsampled pyramid layers to aim at preserving the edges and details when reducing noise. Then nonlinear diffusion filtered bandpass nonsubsampled pyramid layers are decomposed by nonsubsampled directional filter banks. Nonsubsampled contourlet coefficients are processed by thresholding for inter-scale correlations,and the denoised image is achieved. Experiments show that the method can effectively achieve better SNR( signal to noise ratio) and visual effect for edge preserving of denoised infrared images in comparison with other methods.
【Fund】: 江苏省高等学校自然科学基金资助项目(09KJB210002)
【CateGory Index】: TP391.41
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Chinese Journal Full-text Database 1 Hits
1 Zhang Lin①② Zhu Zhao-da① ①(College of Information Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) ②(Radar and Avionics Institute of AVIC, Wuxi 214063, China);A Novel Nonlinear Method for Image Enhancement Based on Nonsubsampled Contourlet Transform[J];Journal of Electronics & Information Technology;2009-08
Chinese Journal Full-text Database 2 Hits
1 CUI Fa-yi, ZHENG De-zhong ( Measurement Technology and Instrumentation Key Lab of Hebei Province, Yanshan University, Qinhuangdao, Hebei 066004, China );An algorithm for image weighted generalized fuzzy enhancement using wavelet packet transform[J];Journal of Yanshan University;2009-06
2 Zhan Bichao1 Wu Yiquan1,2 Ji Shouxin1(1School of Information Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 210016,China2State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing,Jiangsu 210093,China);Infrared Image Enhancement Method Based on Stationary Wavelet Transformation and Retinex[J];Acta Optica Sinica;2010-10
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 He Hong1 Tang Zhihang1,2 Zhang Xizheng1 Yang Baoan21(Department of Computer Science,Hunan Institute of Engineering,Xiangtan Hunan 411104,China)2(Glorious-Sun School of Business and Management,Donghua University,Shanghai 200051,China);NOVEL ALGORITHM FOR IMAGE ENHANCEMENT BASED ON WAVELET MULTISCALE PRODUCT[J];Computer Applications and Software;2007-03
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