Calibration and measurement precision of division-of-focal-plane polarization sensors
Résumé
The polarization imagers based on linear divisionof-focal-plane (DoFP) polarization sensors are receiving much attention due to their integrated structure and their ability to capture polarization information in real time. These cameras have manufacturing defects that must be calibrated both in terms of photometry and of polarimetry. We precisely quantify the influence of these defects on the estimation precision of the Stokes vector and on such polarimetric parameters as the degree of polarization (DOP) and the angle of polarization (AOP). Moreover, commercial DoFP cameras can only measure the linear Stokes vector. To perform full Stokes measurements, one can use a retarder placed in front of them. We show that the parameters of the retarder can be optimized in order to minimize the estimation variance of the Stokes vector.
Domaines
Sciences de l'ingénieur [physics]Origine | Fichiers produits par l'(les) auteur(s) |
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