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Coded aperture snapshot linear-Stokes imaging spectropolarimeter
- Source :
- Optics Communications. 450:72-77
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- In this paper, we present a coded aperture snapshot linear-Stokes imaging spectropolarimeter (CASSIS) based on a combination of coded aperture spectral imager and a division-of-focal-plane polarization camera. The CASSIS achieves aperture coding with a digital micromirror device (DMD) first, and then encodes polarization state using the polarization camera. Finally, the camera gets the coded polarization spatio-spectral image at a single snapshot. Linear-Stokes spectral images are estimated with sparsity-constrained optimization from the acquired image. The principle and feasibility are validated with simulations. It is noted that a modest peak-signal-to-noise ratio (PSNR) is recovered with a single snapshot, and higher PSNR is obtained with multiple snapshots.
- Subjects :
- Physics
business.industry
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Astrophysics::Instrumentation and Methods for Astrophysics
02 engineering and technology
021001 nanoscience & nanotechnology
Polarization (waves)
01 natural sciences
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Digital micromirror device
law.invention
010309 optics
Optics
law
Computer Science::Computer Vision and Pattern Recognition
0103 physical sciences
Snapshot (computer storage)
Coded aperture
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
0210 nano-technology
business
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 450
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........fbdbc69d785ab9b4c12c8d9a456e8c70