Multiband longwave infrared reflectance removal using blackbody channel prior
dc.contributor.author | Grimming, R. | |
dc.contributor.author | Furxhi, O. | |
dc.contributor.author | Driggers, R. | |
dc.contributor.author | Renshaw, K. | |
dc.date.accessioned | 2024-08-12T20:38:57Z | |
dc.date.available | 2024-08-12T20:38:57Z | |
dc.date.issued | 2023-03-03 | |
dc.identifier.citation | Robert Grimming, Orges Furxhi, Ronald Driggers, and Kyle Renshaw "Multiband longwave infrared reflectance removal using blackbody channel prior," Optical Engineering 62(3), 033101 (3 March 2023). https://doi.org/10.1117/1.OE.62.3.033101 | |
dc.identifier.issn | 0091-3286 | |
dc.identifier.doi | 10.1117/1.OE.62.3.033101 | |
dc.identifier.uri | http://hdl.handle.net/10150/674227 | |
dc.description.abstract | Drawing from techniques used to dehaze visible, three-channel RGB images, we propose an approach to separate emissive and reflected radiance in images at short distances with a microbolometer-based longwave infrared (LWIR) camera system. The best case for optimal contrast and with the most descriptive information about the scene in an LWIR image would be where no external sources are radiating toward the scene. We introduce the concept of a blackbody channel prior (BCP) to multiband LWIR imaging to describe pixels that represent objects that behave most similarly to perfect blackbodies with an emissivity near unity. Most LWIR images of outdoor scenes are degraded largely in part by reflected sky path radiance. We can estimate scene radiance with a minimized reflective component producing images with enhanced contrast. Experiments on a number of multiband images are present to demonstrate this spectral-based BCP technique and show its potential for preserving scene information while achieving contrast enhancement. © 2023 Society of Photo-Optical Instrumentation Engineers (SPIE). | |
dc.language.iso | en | |
dc.publisher | SPIE | |
dc.rights | © 2023 Society of Photo-Optical Instrumentation Engineers (SPIE). | |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | |
dc.subject | brightness temperature | |
dc.subject | contrast enhancement | |
dc.subject | emissivity | |
dc.subject | longwave infrared | |
dc.subject | multiband imaging | |
dc.title | Multiband longwave infrared reflectance removal using blackbody channel prior | |
dc.type | Article | |
dc.type | text | |
dc.contributor.department | Wyant College of Optical Sciences, University of Arizona | |
dc.identifier.journal | Optical Engineering | |
dc.description.note | Immediate access | |
dc.description.collectioninformation | This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu. | |
dc.eprint.version | Final Published Version | |
dc.source.journaltitle | Optical Engineering | |
refterms.dateFOA | 2024-08-12T20:38:57Z |