CloudCT 3D volumetric tomography: considerations for imager preference, comparing visible light, short-wave infrared, and polarized imagers

Masada Tzabari; Vadim Holodovsky; Omer Shubi; Eshkol Eytan; Orit Altaratz; Ilan Koren; Anna Aumann; Klaus Schilling; Yoav Y. Schechner

doi:10.1117/12.2594134

1 August 2021 CloudCT 3D volumetric tomography: considerations for imager preference, comparing visible light, short-wave infrared, and polarized imagers

Masada Tzabari, Vadim Holodovsky, Omer Shubi, Eshkol Eytan, Orit Altaratz, Ilan Koren, Anna Aumann, Klaus Schilling, Yoav Y. Schechner

Author Affiliations +

Proceedings Volume 11833, Polarization Science and Remote Sensing X; 1183304 (2021) https://doi.org/10.1117/12.2594134
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The CloudCT project is a mission that aims to demonstrate 3D volumetric scattering tomography of clouds. A formation of ten nanosatellites will simultaneously image cloud fields from multiple directions, at ≈20m nadir ground resolution. Based on this data, scattering tomography will seek the 3D volumetric distribution of cloud properties. We quantitatively compare visible polarized imagers to other imagers considered for the mission. We investigated specifically visible light and short-wave infra-red imagers. Each possibility was considered using Large Eddy Simulation clouds. Major consideration criteria are tomographic quality in the face of sensor and photon noise, calibration errors and stray light. We check the sensitivity to unknown stray light and uncertainty in gain calibration.

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Masada Tzabari, Vadim Holodovsky, Omer Shubi, Eshkol Eytan, Orit Altaratz, Ilan Koren, Anna Aumann, Klaus Schilling, and Yoav Y. Schechner "CloudCT 3D volumetric tomography: considerations for imager preference, comparing visible light, short-wave infrared, and polarized imagers", Proc. SPIE 11833, Polarization Science and Remote Sensing X, 1183304 (1 August 2021); https://doi.org/10.1117/12.2594134

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