Pixelated polarizing system for dynamic interferometry events employing a temporal phase unwrapping approach

摘要

We describe a robust system to retrieve the phase using a temporal phase unwrapping approach and a pixelated polarizing camera. By considering the characteristics of the polarizing sensor and its capabilities to acquired simultaneously four phase shifted interferograms in a stable manner, we propose the use of a temporal phase unwrapping technique to simplify the phase retrieval procedure in dynamic events. We also show that by combining the polarizing sensor and temporal phase unwrapping algorithms, the phase unwrapping procedure is not only simplified, but also the computing time is reduced one order of magnitude compared with other algorithms. In the approach taken, each pixel is processed independently obtaining the phase difference for a specific time opening the possibility of real-time analysis. Validation experiments are presented.