20.500.12556/RUL-180157 Spatiotemporal analysis of transient liquid film shape Precise control of thin liquid film deposition is crucial in applications where film stability and internal liquid flow significantly impact the dry film shape or the efficiency of sample or drug delivery. No prior work has automated the extraction and measurement uncertainty quantification of film geometric parameters from dual-view optical visualization with minimal user input. We present Python-based software that extracts time-resolved film thickness, width, and the positions of three contact lines from visual data using computer vision. The utility of such analysis is demonstrated by depositing 30 % glycerol on a flexible tape through a circular nozzle orifice. The nozzle is positioned at a distance of h = 0.3 mm from the tape at an angle of attack α = 45°, with deposition controlled at a volume flow rate ▫$\dot{V}$▫ = 30 μL ▫$min^{−1}$▫ and tape velocity v = 1.0 mm ▫$s^{−1}$▫. Expanded measurement uncertainties are 21 μm, 22 μm, and 53 μm for the upstream static, downstream static, and upstream dynamic contact line positions, respectively, with maximum relative uncertainties of 10.3 % and 8.2 % for film thickness and width. Static contact line oscillations remain within measurement uncertainty, whereas the upstream dynamic contact line exhibits resolvable oscillations. This dual-view framework provides high-resolution insights into liquid film dynamics, which is crucial for comprehensive control of liquid film deposition. liquid film shapes dual-view imaging optical visualization automated spatiotemporal analysis oblike kapljevinskega sloja zajem slik iz dveh pogledov optična vizualizacija avtomatizirana prostorsko-časovna analiza true false true Angleški jezik Slovenski jezik Članek v reviji 2026-03-04 10:27:03 2026-03-04 10:27:11 2026-03-05 04:28:33 0000-00-00 00:00:00 2026 0 0 19 str. issue 3, art. 67 Vol. 11 2026 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 532.5:544.023 2311-5521 10.3390/fluids11030067 270390531 Vidic_..._Spatiotemporal_analysis...pdf Vidic_..._Spatiotemporal_analysis...pdf 1 CE93ABA4A6DA3C39BB415A836BFDC46B 12a89f7193d43c522253a8746f60bdbfce390bcb13eb1f62bba9614ffd414f0a 6abeaf19-17ac-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=229297 https://www.mdpi.com/2311-5521/11/3/67 1 f78b41ca-17ab-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=229296 Fakulteta za strojništvo 0 0 0