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Color visible and infrared image fusion algorithm

Author: WangPeng
Tutor: GuanYuDong
School: Harbin Institute of Technology
Course: Information and Communication Engineering
Keywords: Image Fusion Pyramid algorithm Multi-scale geometric analysis Pulse Coupled Neural Network
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 114
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Abstract


Image fusion technique is to different types of sensors or the same sensor at different times of the various modes of image acquisition integrated into a more accurate and reliable and contains a richer informative images have been widely used in military , medical , artificial intelligence and other areas , there are broad prospects . Color visible image can clearly show scenes details , but influenced by the lighting conditions ; infrared image on the display of the target scene fever has a unique advantage , but the image is poor . Infrared and color visible image fusion can learn from each other , both for detection of fever target , but also has a richer scenes details and better visual effect. In this paper, fusion algorithm is studied , and the fused image is evaluated , the main tasks include: First, the theory of classical fusion algorithm based on the pyramid were studied , including Laplacian pyramid , contrast pyramid , gradient pyramid , ratios and morphological pyramid pyramids , and these algorithms fusion Simulation . Secondly, the fused image quality evaluation factors are discussed, including information entropy, cross entropy , mutual information and edge factor , etc., and these factors was evaluated using image fusion results. Again, research based on improved wavelet transform and lαβ outline color space fusion method of combining . After considering the characteristics of infrared and visible light is proposed based on a new low-frequency coefficients fusion rule , and the simulation experiments show the superiority of this method . Finally, the study of the pulse coupled neural network (Pulse-coupled Neural Networks, PCNN) feature , introduced the basic model and its principles , and with Nonsubsampled Contourlet Transform (Nonsubsampled Contourlet Transform, NSCT) proposed a combination of theory kind of effective image fusion method , and simulation .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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