Flash hyperspectral imaging of non-stellar astronomical objects

James F. Scholl, E. Keith Hege, Michael Hart, Daniel O'Connell, Eustace L. Dereniak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

There are certain classes of astronomical objects that have rather involved spectra that can also be a composite of a number of different spectral signatures, as well as spatial characteristics that can be used for identification and analysis. Such objects include galaxies and quasars with active nuclei, colliding / interacting galaxies, and globular cluster systems around our own Milky Way and other galaxies. Flash hyperspectral imaging adds coherence-time limited functionality so that Earth orbiting spacecraft and solar system objects such as planets, asteroids and comets can be spectrally imaged as well, as these also have both spatial and spectral structure rotating and moving within much shorter time spans. Flash hyperspectral imaging systems are, therefore, also useful for faster simultaneous spatial and spectral feature analysis. Previous work has explored spectral unmixing and other types of feature extraction of these general types of objects, but without consideration of the hyperspectral imaging system involved, neither in how the data is collected nor in how the datacube is reconstructed. We will present a proof of concept simulation of a resolved object as it is imaged through such a physically modeled imaging system and its datacube reconstructed. Finally, we provide a demonstration of the capability with astronomical data, Venus and a binary star, when constrained by our physical model of the instrumental transfer function.

Original languageEnglish (US)
Title of host publicationMathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications XI
DOIs
StatePublished - Nov 21 2008
EventMathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications XI - San Diego, CA, United States
Duration: Aug 12 2008Aug 13 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7075
ISSN (Print)0277-786X

Conference

ConferenceMathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications XI
CountryUnited States
CitySan Diego, CA
Period8/12/088/13/08

Keywords

  • Astronomical imaging
  • Hyperspectral signal processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Scholl, J. F., Hege, E. K., Hart, M., O'Connell, D., & Dereniak, E. L. (2008). Flash hyperspectral imaging of non-stellar astronomical objects. In Mathematics of Data/Image Pattern Recognition, Compression, and Encryption with Applications XI [70750H] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7075). https://doi.org/10.1117/12.794915