Development of a fused geometric-optical measurement system
- Master's thesis (Electrical and Information technology, major Photonics), 2014/2015

The geometric-optical phase measurement techniques (GOPs) Fringe Projection and Phase Measuring Deflectometry are designed for the measurement of diffusely reflective and specularly reflective surfaces respectively. Measurement of surfaces with unknown reflective characteristics or with spatially varying reflective characteristics using a single one of these techniques is not feasible.

In the scope of a master's thesis, a novel combined GOP for the measurement of technical or other surfaces with mixed reflective characteristics was developed, which involves the fusion of measurement data from Fringe Projection and Phase Measuring Deflectometry measurements. After explaining the basic principle of geometric-optical phase measuring and the importance of the measurement parameters, the novel algorithm is described and measurements with a combined GOP setup are presented.

Download thesis as pdf-file in english

Presentation in german.