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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 5, Iss. 5 — May. 1, 1988
  • pp: 666–673

Maximum-likelihood image restoration adapted for noncoherent optical imaging

Timothy J. Holmes  »View Author Affiliations

JOSA A, Vol. 5, Issue 5, pp. 666-673 (1988)

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Noncoherent optical-imaging systems are identified as potential applications for the maximum-likelihood image-restoration methods that are currently being studied for various modalities of nuclear-medicine imaging. An analogy between the quantum-photon measurements of such an optical system and that of a gamma camera allow for this new application. Results of a computer simulation are presented that support its feasibility. One important property revealed by this simulation is that the maximum-likelihood method demonstrates the ability to extrapolate the Fourier spectrum of a band-limited signal. This ability can be partially understood in that this algorithm, similar to some of the other spectral-extrapolation algorithms, constrains the solution to nonnegative values. This observation has implications on the potential of superresolution, the restoration of images from a defocused optical system, and three-dimensional imaging with a microscope.

© 1988 Optical Society of America

Timothy J. Holmes, "Maximum-likelihood image restoration adapted for noncoherent optical imaging," J. Opt. Soc. Am. A 5, 666-673 (1988)

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