Skylight polarization measurement based on DoFP polarization camera

Shuai Li; Wenqing Xu; Jie Zhan; Gang Xu; Gang Song

doi:10.1117/12.2622531

27 March 2022 Skylight polarization measurement based on DoFP polarization camera

Shuai Li, Wenqing Xu, Jie Zhan, Gang Xu, Gang Song

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 1216924 (2022) https://doi.org/10.1117/12.2622531
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

As an emerging technology, division-of-focal-plane (DoFP) polarization camera have raised attention due to their integrated structure. The DoFP sensor can output real time data of polarization information. In this paper, a novel visualization method for polarization is proposed for DoFP polarization camera. This approach provides three views: linear polarization image, azimuth image and four quadrant polarization image. We also use pseudo color characterization method enhances the image visualization and highlights the polarization characteristics of skylight observation targets. The experimental results show that the proposed method can output and display three polarization parameters of the incident light at each pixel: intensity, linear polarization and azimuth in real time. Imaging is intuitive we can clearly see the polarization state distribution of skylight and the polarization characteristics of the target building.

Citation Download Citation

Shuai Li, Wenqing Xu, Jie Zhan, Gang Xu, and Gang Song "Skylight polarization measurement based on DoFP polarization camera", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 1216924 (27 March 2022); https://doi.org/10.1117/12.2622531

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KEYWORDS

Polarization

Cameras

Polarizers

Linear polarizers

Sensors

Image sensors

Optical testing

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