20.500.12556/DiRROS-30095 Video enhancement for increased spatio-temporal resolution in thermal videos demonstration on a pool fire A spatio-temporal video enhancement of a small-scale pool fire is performed to address the typically low spatial resolution and frame rate of inexpensive infrared (IR) cameras. Improving image quality can increase the applicability of low-cost thermal cameras for certain research tasks and analyses. The spatial resolution and frame rate are doubled, from 310 × 250 pixels (px) to 620 × 500 px, and from 25 frames per second (fps) to 50 fps, as well as from 50 fps to 100 fps. Spatial resolution enhancement is achieved using super-resolution methods based on deep learning, employing several pre-trained models: Fast Super-Resolution CNN (FSRCNN), Efficient Sub-Pixel Convolutional Network (ESPCN), Enhanced Deep Super-Resolution (EDSR), Laplacian Pyramid Super-Resolution Network (LapSRN), and Real-ESRGAN. The footage consists of an n-heptane pool fire recorded using a mid-wave infrared (MWIR) FLIR X6981 HS InSb camera. EDSR provides the best performance for both purely resized images and images subjected to complex degradation. For temporal enhancement, a pre-trained frame interpolation model, FLAVR (FlowAgnostic Video Representation), is used. The resulting interpolated frames appear realistic and preserve the overall flow direction and shape of the flame. The interpolated frames are compared with ground-truth data to validate the accuracy of the temporal enhancement. image processing thermal camera machine learning pool fire obdelava slik termovizijska kamera strojno učenje bazenski požar true false true Elsevier Angleški jezik Slovenski jezik © 2026 The Authors Neznano 2026-06-15 13:18:37 2026-06-15 13:28:19 2026-06-16 03:54:48 0000-00-00 00:00:00 2026 0 0 str. 1-11 [article no.] 104758 Vol. 163 Sep. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-04-03 614.84 1873-7226 10.1016/j.firesaf.2026.104758 280256003 https://www.sciencedirect.com/science/article/pii/S0379711226001268 1 f5b403a8-68ab-11f1-aebd-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=45434 RAZ_Lucherini_Andrea_2026.pdf RAZ_Lucherini_Andrea_2026.pdf 1 D8155B0B3550FEDCA0C5C9D6F9AADC3F ccfee100ffeafbc6ec9a2aa110b762cda7bdac6ddf29f6a85c1651727749cc17 84664f58-68ac-11f1-aebd-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=45436 Zavod za gradbeništvo Slovenije 0 0 0