Application of Instantaneous Polarization Imagers for Quantitative Optical Metrology by Digital Holography
摘要
Conventional digital holographic systems often face challenges such as limited imaging contrast, loss of information due to saturation on reflective surfaces, and time-consuming region-of-interest (ROI) masking procedures. This paper presents an exploitation of the application and practical use of polarimetric imagers in enhancing the recording and processing of digital holographic data for optical metrology and NDT. Results demonstrate the use of polarization characterization for reduction and removal of saturated areas as well as object detection in automated ROI masking. We provide a comprehensive exploration of the practical use of polarized cameras in digital holography for optical NDT applications, while also discussing some of the disadvantages, highlighting their potential to address critical challenges and advance the capabilities of holographic systems.