Real-Time Adaptive Background-Oriented Schlieren Imaging Algorithm with Spatiotemporal Variability Using Computer Vision and Particle Image Velocimetry

Abstract

Advanced BOS computational system integrating wavelet transformations, Kalman filtering, and adaptive CLAHE contrast enhancement. Demonstrated 30.6% improvement in edge detection sensitivity, 12.5% in resolution enhancement, and 11% in noise reduction versus OpenCV/OpenPIV baselines — enabling real-time mobile fluid flow visualization.