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13 June 2022 Super-resolution thermographic imaging
Peter Burgholzer, Gregor Thummerer, Guenther Mayr, Markus Haltmeier
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Proceedings Volume PC12109, Thermosense: Thermal Infrared Applications XLIV; (2022) https://doi.org/10.1117/12.2618390
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States
Abstract
In the presented work the principle of super-resolution imaging using structured illumination is applied to thermography. Scattered light which can penetrate under the surface of a sample heats subsurface light absorbing structures. The diffused heat is measured on the sample surface e.g. with an infrared camera, which allows to image the subsurface structures. The deeper these structures are below the surface, the more blurred their images become. Blind structured illumination inside the sample is used to calculate a super-resolution image which less blurring. The structured illumination inside the sample can be generated by interference of scattered light producing laser speckles.
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Peter Burgholzer, Gregor Thummerer, Guenther Mayr, and Markus Haltmeier "Super-resolution thermographic imaging", Proc. SPIE PC12109, Thermosense: Thermal Infrared Applications XLIV, (13 June 2022); https://doi.org/10.1117/12.2618390
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KEYWORDS
Super resolution
Laser scattering
Light scattering
Infrared cameras
Laser tissue interaction
Microscopy
Natural surfaces
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