Infrared and visible image fusion based on nonsubsampled Contourlet transform
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摘要:基于非下采样Contourlet变换(NSCT),提出了一种红外和可见光图像融合算法。针对低频子带系数和各带通方向子带系数分别提出了基于图像物理特征的系数加权选择方式与基于区域能量匹配的系数选择方式,即低频基于区域梯度信息、高频基于区域特征因子的加权与选择结合的图像融合算法。实验结果表明:非下采样Contourlet变换具有较快的运算速度,且经非下采样变换后能量更加集中,可提供更多的图像信息。相对于基于像素的图像融合算法,本文的图像融合算法具有更高的融合性能,是一种更适合图像融合的多尺度几何分析(MGA)工具。
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关键词:
- 图像融合/
- 多尺度几何分析/
- 非下采样Contourlet变换/
- 区域能量匹配
Abstract:A fusion algorithm based on the Nonsubsampled Contourlet Transform(NSCT) is proposed to fuse infrared and visible images. A weighted averaging' scheme based on the physical features of infrared and visible images and a selection principle based on the local energy matching are presented for the low frequency subband coefficients and the high frequency subband coefficients, respectively. Experimental results show that the NSCT has a fast computing ability and can provide more image information due to the concentration energy by image processing. As compared to the image fusion algorithm based on pixels, this algorithm has higher fusion performance, and is a Multiscale Geometric Analysis(MGA) tool more suitable for image fusion. -
[1] 毛士艺,赵巍.多传感器图像融合技术综述[J].北京航空航天大学学报 ,2002,28(5):512-518. MAO SH Y,ZHAO W. Comments on multisensor image fusion techniques[J].J. Beijing University Aeronautics and Astronautics,2002,28(5):512-518.(in Chinese) [2] SIMONE G,FARINA A,MORABITO F C. Image fusion techniques for remote sensing application[J].Information Fusion,2002,3(1):3-15. [3] 杜宝祥. Contourlet变换在图像处理中的应用研究. 哈尔滨:哈尔滨工程大学 ,2009. DU B X. Recearch on applications of contourlet transform in image processing.Harbin:Harbin Engineering University,2009.(in Chinese) [4] WEN C Y,CHEN J K. Multi-resolution image fusion technique and its application to forensic science[J].Forensic Science International,2004,140(2-3):217-232. [5] PAN J P,GONG J Y,LU J,et al.. Image fusion based on local deviation and high-pass filtering of wavelet transform[J].SPIE,2004,5660:191-198. [6] TU T M,HUANG P S,HUNG C L,et al.. A fast intensity-hue-saturation fusion technique with spectral adjustment for IKONOS imagery[J].IEEE Geoscience and Remote Sensing Lett.,2004,1(4):309-312. [7] 宋好好. Contourlet变换在图像分析处理中的应用研究. 上海:上海交通大学 ,2008. SONG H H. Application research on contourlet in image processing.Shanghai:Shanghai Jiaotong University,2008.(in Chinese) [8] HEATHER J P,SMITH M I. Multimodal image registration with applications to image fusion. 20057th IEEE International Conference on Information Fusion,Philadelphia,Pa,25-28 July,2005:372-379. [9] 杨俊,赵忠明. 基于Curvelet变换的多聚焦图像融合方法[J]. 光电工程 ,2007,6(1):11-16. YANG J,ZHAO ZH M. Multifocus image fusion method based on curvelet transform[J].Opto-Electronic Eng.,2007,6(1):11-16.(in Chinese) [10] NIKOLOV S G,HILL P R,BULL D R,et al.. Wavelets for image fusion.(2001-03-06).http://www.tallypaul.pwp.blueyonder.co.uk/papers/nikolov-wif.pdf. [11] SHI W Z,ZHU C Q,TIAN Y,et al.. Wavelet-based image fusion and quality assessment[J].International J. Appl. Earth Observation and Geoinformation,2005,6(3):241-251. [12] STARCK J L,CANDES E,DONOHO D L. The curvelet transform for image denoising[J].IEEE T. Image Process.,2002:670-684. [13] CANDES E J,DEMANET L,DONOHO D L. Fast discrete curvelet transform.(2005-01-10).http://www.acm.caltech.edu/emmanuel/paper/FDCT.pdf. [14] 倪伟. 基于多尺度几何分析的图像处理技术研究. 西安:西安电子科技大学 ,2008. NI W. Research on image processing algorithms via multiscale geometric analysis.Xi'an:Xi'an Univeristy of Electronic Science and Technology,2008.(in Chinese) [15] BENDER E J,REESE C E,SVANDERWAL G. Comparison of additive image fusion vs. feature-level image fusion techniques for enhanced night driving[J].SPIE,2003,4796:140-151.
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