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31 May 2016 A comparative study of multi-focus image fusion validation metrics
Michael Giansiracusa; Adam Lutz; Neal Messer; Soundararajan Ezekiel; Mark Alford; Erik Blasch; Adnan Bubalo; Michael Manno
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Proceedings Volume 9841, Geospatial Informatics, Fusion, and Motion Video Analytics VI; 98410J (2016) https://doi.org/10.1117/12.2224349
Event: SPIE Defense + Security, 2016, Baltimore, Maryland, United States
Abstract
Fusion of visual information from multiple sources is relevant for applications security, transportation, and safety applications. One way that image fusion can be particularly useful is when fusing imagery data from multiple levels of focus. Different focus levels can create different visual qualities for different regions in the imagery, which can provide much more visual information to analysts when fused. Multi-focus image fusion would benefit a user through automation, which requires the evaluation of the fused images to determine whether they have properly fused the focused regions of each image. Many no-reference metrics, such as information theory based, image feature based and structural similarity-based have been developed to accomplish comparisons. However, it is hard to scale an accurate assessment of visual quality which requires the validation of these metrics for different types of applications. In order to do this, human perception based validation methods have been developed, particularly dealing with the use of receiver operating characteristics (ROC) curves and the area under them (AUC). Our study uses these to analyze the effectiveness of no-reference image fusion metrics applied to multi-resolution fusion methods in order to determine which should be used when dealing with multi-focus data. Preliminary results show that the Tsallis, SF, and spatial frequency metrics are consistent with the image quality and peak signal to noise ratio (PSNR).
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Michael Giansiracusa, Adam Lutz, Neal Messer, Soundararajan Ezekiel, Mark Alford, Erik Blasch, Adnan Bubalo, and Michael Manno "A comparative study of multi-focus image fusion validation metrics", Proc. SPIE 9841, Geospatial Informatics, Fusion, and Motion Video Analytics VI, 98410J (31 May 2016); https://doi.org/10.1117/12.2224349
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