Estimation of the degree of polarization in low-light 3D integral imaging

Artur Carnicer; Bahram Javidi

doi:10.1117/12.2225482

1 June 2016 Estimation of the degree of polarization in low-light 3D integral imaging

Artur Carnicer, Bahram Javidi

Proceedings Volume 9867, Three-Dimensional Imaging, Visualization, and Display 2016; 98670C (2016) https://doi.org/10.1117/12.2225482
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

The calculation of the Stokes Parameters and the Degree of Polarization in 3D integral images requires a careful manipulation of the polarimetric elemental images. This fact is particularly important if the scenes are taken in low-light conditions. In this paper, we show that the Degree of Polarization can be effectively estimated even when elemental images are recorded with few photons. The original idea was communicated in [A. Carnicer and B. Javidi, “Polarimetric 3D integral imaging in photon-starved conditions,” Opt. Express 23, 6408–6417 (2015)]. First, we use the Maximum Likelihood Estimation approach for generating the 3D integral image. Nevertheless, this method produces very noisy images and thus, the degree of polarization cannot be calculated. We suggest using a Total Variation Denoising filter as a way to improve the quality of the generated 3D images. As a result, noise is suppressed but high frequency information is preserved. Finally, the degree of polarization is obtained successfully.

Citation Download Citation

Artur Carnicer and Bahram Javidi "Estimation of the degree of polarization in low-light 3D integral imaging", Proc. SPIE 9867, Three-Dimensional Imaging, Visualization, and Display 2016, 98670C (1 June 2016); https://doi.org/10.1117/12.2225482

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