Optimizations of Optical Flow Measurement Systems

Abstract

In this cumulative thesis contributions are presented that cover the computational aspects of optical measurement systems for flow investigations in aerodynamics and fluid mechanics. Flow measurements are useful in gaining an understanding of flow dynamics and validating numerical models for flow dynamics simulations. With the goal of accurately capturing and visualizing details of unsteady and moving flow structures based on recorded digital images of small tracer particles, the contributions cover a wide range from digital image processing, camera calibration, 20 and 30 reconstruction, estimation of position, velocity and acceleration, noise reduction and spatial interpolation of scattered 30 data using physically-motivated regularizations.