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Measurement of the point-spread function of a noisy imaging system
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Claxton, Christopher David and Staunton, Richard C. (2008) Measurement of the point-spread function of a noisy imaging system. Journal Optical Society America A, Vol.25 (No.1). pp. 159-170. doi:10.1364/JOSAA.25.000159 ISSN 1084-7529.
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Official URL: http://dx.doi.org/10.1364/JOSAA.25.000159
Abstract
The averaged point-spread function (PSF) estimation of an image acquisition system is important for many computer vision applications, including edge detection and depth from defocus. The paper compares several mathematical models of the PSF and presents an improved measurement technique that enables subpixel estimation of 2D functions. New methods for noise suppression and uneven illumination modeling were incorporated. The PSF was computed from an ensemble of edge-spread function measurements. The generalized Gaussian was shown to be an 8 times better fit to the estimated PSF than the Gaussian and a 14 times better fit than the pillbox model.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QA Mathematics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Computer vision -- Mathematical models | ||||
Journal or Publication Title: | Journal Optical Society America A | ||||
Publisher: | Optical Society of America | ||||
ISSN: | 1084-7529 | ||||
Official Date: | January 2008 | ||||
Dates: |
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Volume: | Vol.25 | ||||
Number: | No.1 | ||||
Number of Pages: | 12 | ||||
Page Range: | pp. 159-170 | ||||
DOI: | 10.1364/JOSAA.25.000159 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 14 December 2015 | ||||
Date of first compliant Open Access: | 14 December 2015 |
Data sourced from Thomson Reuters' Web of Knowledge
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