The presented measurement principle based on cross-correlation of random dot patterns is very modular, since different quantities (deformation, slope, and velocity) can be measured on different surface types. In addition, the PROPAC technique is considerably fast, which allows us to handle moving objects. Future work will be the investigation of evaluation algorithms which allow an improved spatial resolution.
Other possible applications in addition to real-time quality control are vibration analysis of oscillating objects, local deformation or velocity measurements of moving or deforming objects, determination of the shape and local declination of mirrors, lenses, eyeglasses and head-up displays or the measurement of glass panes thickness.