Ms. Yahui Wang Profile

Yahui Wang

at Beijing Institute of Technology

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Proceedings Article | 5 August 2015 Paper

Polarization information processing and software system design for simultaneously imaging polarimetry

Yahui Wang, Jing Liu, Weiqi Jin, Renjie Wen

Proceedings Volume 9622, 96220J (2015) https://doi.org/10.1117/12.2192576

KEYWORDS: Polarization, Image segmentation, Image registration, Data processing, Polarimetry, Imaging systems, Calibration, Prisms, Image processing, Image transmission

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Simultaneous imaging polarimetry can realize real-time polarization imaging of the dynamic scene, which has wide application prospect. This paper first briefly illustrates the design of the double separate Wollaston Prism simultaneous imaging polarimetry, and then emphases are put on the polarization information processing methods and software system design for the designed polarimetry. Polarization information processing methods consist of adaptive image segmentation, high-accuracy image registration, instrument matrix calibration. Morphological image processing was used for image segmentation by taking dilation of an image; The accuracy of image registration can reach 0.1 pixel based on the spatial and frequency domain cross-correlation; Instrument matrix calibration adopted four-point calibration method. The software system was implemented under Windows environment based on C++ programming language, which realized synchronous polarization images acquisition and preservation, image processing and polarization information extraction and display. Polarization data obtained with the designed polarimetry shows that: the polarization information processing methods and its software system effectively performs live realize polarization measurement of the four Stokes parameters of a scene. The polarization information processing methods effectively improved the polarization detection accuracy.

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