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http://dx.doi.org/10.5351/KJAS.2011.24.4.695

Image Fusion Based on Statistical Hypothesis Test Using Wavelet Transform  

Park, Min-Joon (Korea Science Academy)
Kwon, Min-Jun (Korea Science Academy)
Kim, Gi-Hun (Korea Science Academy)
Shim, Han-Seul (Korea Science Academy)
Lim, Dong-Hoon (Department of Information Statistics and RINS, Gyeongsang National University)
Publication Information
The Korean Journal of Applied Statistics / v.24, no.4, 2011 , pp. 695-708 More about this Journal
Abstract
Image fusion is the process of combining multiple images of the same scene into a single fused image with application to many fields, such as remote sensing, computer vision, robotics, medical imaging and military affairs. The widely used image fusion rules that use wavelet transform have been based on a simple comparison with the activity measures of local windows such as mean and standard deviation. In this case, information features from the original images are excluded in the fusion image and distorted fusion images are obtained for noisy images. In this paper, we propose the use of a nonparametric squared ranks test on the quality of variance for two samples in order to overcome the influence of the noise and guarantee the homogeneity of the fused image. We evaluate the method both quantitatively and qualitatively for image fusion as well as compare it to some existing fusion methods. Experimental results indicate that the proposed method is effective and provides satisfactory fusion results.
Keywords
Image fusion; wavelet transform; hypothesis test; squared ranks test;
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