Optimal tradeoff between precision and sampling rate in DoFP imaging polarimeters

Xiaobo Li; Xiaobo Li; Haofeng Hu; Haofeng Hu; Haofeng Hu; Haofeng Hu; Matthieu Boffety; Stéphane Roussel; Tiegen Liu; Tiegen Liu; François Goudail; François Goudail

doi:10.1364/OL.44.005900

Optics Letters
Vol. 44,
Issue 24,
pp. 5900-5903
(2019)
•https://doi.org/10.1364/OL.44.005900

Optimal tradeoff between precision and sampling rate in DoFP imaging polarimeters

Xiaobo Li, Haofeng Hu, Matthieu Boffety, Stéphane Roussel, Tiegen Liu, and François Goudail

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Xiaobo Li, Haofeng Hu, Matthieu Boffety, Stéphane Roussel, Tiegen Liu, and François Goudail, "Optimal tradeoff between precision and sampling rate in DoFP imaging polarimeters," Opt. Lett. 44, 5900-5903 (2019)

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Abstract

A linear division-of-focal-plane camera combined with a controllable polarization modulator constitutes a versatile full-Stokes imager with four possible sampling rate modes, depending on the number of acquisitions. Considering several polarization modulator architectures, we determine the parameter settings that minimize estimation variance in each sampling rate mode, so that precision, sampling rate, and acquisition time can be optimally and dynamically balanced to implement the imaging solution best adapted to a given application.

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$N$	2	2	3	4
Sampling rate (pixels)	$2 \times 2$	$2 \times 1$	$2 \times 1$	$1 \times 1$
2-VR	5.5	11	6.7	10
2-QWP	5.5	11	6.7	10
1-QWP	5.5	15.3	10.2	27.6

$N$	2	2	3	4
Sampling rate (pixels)	$2 \times 2$	$2 \times 1$	$2 \times 1$	$1 \times 1$
2-VR	5.5	11	6.7	10 (11)
2-QWP	5.5	11	6.7	10 (/)
1-QWP	5.5	15.3 (/)	10.2 (/)	27.6 (/)

$N$	2	2	3	4
Sampling rate (pixels)	$2 \times 2$	$2 \times 1$	$2 \times 1$	$1 \times 1$
2-VR	5.5	11	6.7	10
2-QWP	5.5	11	6.7	10
1-QWP	5.5	15.3	10.2	27.6

$N$	2	2	3	4
Sampling rate (pixels)	$2 \times 2$	$2 \times 1$	$2 \times 1$	$1 \times 1$
2-VR	5.5	11	6.7	10 (11)
2-QWP	5.5	11	6.7	10 (/)
1-QWP	5.5	15.3 (/)	10.2 (/)	27.6 (/)

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Equations (12)

Optics Letters