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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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Published on: February 12, 2014

[Spatially modulated interference Hadamard transform spectral imager].

Jin-Song Zhou1, Bin Xiangli, Ru-Yi Wei

  • 1Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China. jszhou@opt.ac.cn

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|January 28, 2010
PubMed
Summary
This summary is machine-generated.

A novel spectral imager design overcomes limitations of previous Hadamard transform spectral imagers. This new approach improves spatial and spectral resolution, enabling high-throughput imaging.

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Area of Science:

  • Optics and Photonics
  • Spectroscopy
  • Instrumental Science

Context:

  • Dispersion Hadamard transform spectral imagers suffer from spatial-spectral information dislocation and limited spectral resolution.
  • Existing designs are constrained by factors like Hadamard encoding mask width.

Purpose:

  • To propose a new instrumental principle and design for a spatially modulated interference Hadamard transform spectral imager.
  • To address the limitations of dispersion-based Hadamard transform spectral imagers.

Summary:

  • A lateral shearing interferometer acquires interference signals for Hadamard encoding at varying optical path differences.
  • Fourier and Hadamard transforms are applied to interferograms for spectral data acquisition.
  • Theoretical analysis confirms the new design is unaffected by mask parameters and enhances spectral resolution.

Impact:

  • Eliminates spatial-spectral information dislocation inherent in dispersion Hadamard transform spectral imagers.
  • Enables high-throughput, high spatial resolution, and high spectral resolution imaging.
  • Offers a more convenient and effective spectral imaging solution.