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Calibration algorithms for polarization filter array camera: survey and evaluation

Abstract : A polarization filter array (PFA) camera is an imaging device capable of analyzing the polarization state of light in a snapshot manner. These cameras exhibit spatial variations, i.e., nonuniformity, in their response due to optical imperfections introduced during the nanofabri-cation process. Calibration is done by computational imaging algorithms to correct the data for radiometric and polarimetric errors. We reviewed existing calibration methods and applied them using a practical optical acquisition setup and a commercially available PFA camera. The goal of the evaluation is first to compare which algorithm performs better with regard to polarization error and then to investigate both the influence of the dynamic range and number of polarization angle stimuli of the training data. To our knowledge, this has not been done in previous work.
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https://hal.archives-ouvertes.fr/hal-02546953
Contributor : Pierre-Jean Lapray Connect in order to contact the contributor
Submitted on : Sunday, April 19, 2020 - 11:31:47 AM
Last modification on : Tuesday, April 5, 2022 - 6:16:02 PM

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Yilbert Giménez, Pierre-Jean Lapray, Alban Foulonneau, Laurent Bigué. Calibration algorithms for polarization filter array camera: survey and evaluation. Journal of Electronic Imaging, SPIE and IS&T, 2020, 29. ⟨hal-02546953⟩

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