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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 24 — Aug. 20, 2010
  • pp: 4568–4575

Detection and correction of spectral and spatial misregistrations for hyperspectral data using phase correlation method

Naoto Yokoya, Norihide Miyamura, and Akira Iwasaki  »View Author Affiliations


Applied Optics, Vol. 49, Issue 24, pp. 4568-4575 (2010)
http://dx.doi.org/10.1364/AO.49.004568


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Abstract

Hyperspectral imaging sensors suffer from spectral and spatial misregistrations due to optical-system aberrations and misalignments. These artifacts distort spectral signatures that are specific to target objects and thus reduce classification accuracy. The main objective of this work is to detect and correct spectral and spatial misregistrations of hyperspectral images. The Hyperion visible near-infrared subsystem is used as an example. An image registration method based on phase correlation demonstrates the accurate detection of the spectral and spatial misregistrations. Cubic spline interpolation using estimated properties makes it possible to modify the spectral signatures. The accuracy of the proposed postlaunch estimation of the Hyperion characteristics is comparable to that of the prelaunch measurements, which enables the accurate onboard calibration of hyperspectral sensors.

© 2010 Optical Society of America

OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(100.6890) Image processing : Three-dimensional image processing
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6170) Spectroscopy : Spectra

ToC Category:
Image Processing

History
Original Manuscript: April 27, 2010
Revised Manuscript: July 2, 2010
Manuscript Accepted: July 22, 2010
Published: August 16, 2010

Citation
Naoto Yokoya, Norihide Miyamura, and Akira Iwasaki, "Detection and correction of spectral and spatial misregistrations for hyperspectral data using phase correlation method," Appl. Opt. 49, 4568-4575 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-24-4568

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