A spectral calibration approach for snapshot Image Mapping Spectrometer (IMS)

  • Zhenyi Ai
  • , Yan Yuan*
  • , Lijuan Su
  • , Xiaoming Ding
  • , Wanyue Wang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The snapshot image mapping spectrometer (IMS) is a hyper-spectral imaging system that simultaneously captures spatial and spectral information about an object in a single integral time. The spectral calibration can help to obtain accurate 3D datacube of the objects. This paper proposes a new approach to improve the spectral calibration accuracy of the instrument. By adding a slit mask into the optical path to reduce crosstalk, the accuracy of each sub pupil center and spectral channel location can be improved. The calibration process is simulated to analyze the effects of the size and position designed for the mask. The analysis results show that the calibration accuracy of each sub pupil center position and spectral channel position for IMS is 3μm, which is significantly improved than the calibration accuracy 10.5μm without the mask.

Original languageEnglish
Title of host publication9th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationOptical Test, Measurement Technology, and Equipment
EditorsBin Fan, Fan Wu, Yudong Zhang, Xiaoliang Ma, Xiong Li
PublisherSPIE
ISBN (Electronic)9781510623200
DOIs
StatePublished - 2019
Event9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment - Chengdu, China
Duration: 26 Jun 201829 Jun 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10839
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
Country/TerritoryChina
CityChengdu
Period26/06/1829/06/18

Keywords

  • crosstalk
  • hyper-spectral imaging system
  • snapshot image mapping spectrometer
  • spectral calibration

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