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dc.contributor.authorQadir, Hemin
dc.contributor.authorKozaitis, Samuel P.
dc.contributor.authorAli, Ehsan A.
dc.date.accessioned2017-06-13T13:59:41Z
dc.date.available2017-06-13T13:59:41Z
dc.date.issued2014-05-06
dc.identifier.citationQadir, H., Kozaitis, S. P., & Ali, E. (2014). Enhancing thermal video using a public database of images. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, , 9121 doi:10.1117/12.2050399en_US
dc.identifier.urihttp://hdl.handle.net/11141/1519
dc.description.abstractWe presented a system to display nightime imagery with natural colors using a public database of images. We initially combined two spectral bands of images, thermal and visible, to enhance night vision imagery, however the fused image gave an unnatural color appearance. Therefore, a color transfer based on look-up table (LUT) was used to replace the false color appearance with a colormap derived from a daytime reference image obtained from a public database using the GPS coordinates of the vehicle. Because of the computational demand in deriving the colormap from the reference image, we created an additional local database of colormaps. Reference images from the public database were compared to a compact local database to retrieve one of a limited number of colormaps that represented several driving environments. Each colormap in the local database was stored with an image from which it was derived. To retrieve a colormap, we compared the histogram of the fused image with histograms of images in the local database. The colormaps of the best match was then used for the fused image. Continuously selecting and applying colormaps using this approach offered a convenient way to color night vision imagery.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with publishers policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://spie.org/publications/journals/guidelines-for-authors#Terms_of_Useen_US
dc.titleEnhancing thermal video using a public database of imagesen_US
dc.typeConference Proceedingen_US
dc.identifier.doi10.1117/12.2050399


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