Image formation with a microlens-based optical detector: a three-dimensional mapping approach
Applied Optics, Vol. 48, Issue 10, pp. D273-D279 (2009)
http://dx.doi.org/10.1364/AO.48.00D273
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Abstract
A ray-based approach that models the geometric mapping properties of a flat optical detector based on a microlens array is presented. The investigated optical detector substitutes a single-aperture lens optic for planar and tomographic data acquisition in space-constrained small-animal imaging applications. The formalism implements forward mapping of a three-dimensional object volume onto a two-dimensional sensor surface as well as the backprojection (inverse mapping) of acquired sensor data sets. The object focus distance is the sole free parameter for the inverse mapping. By variation of the object focus distance, arbitrary object surface areas within the computed object images can be focused. The inverse mapping algorithm was applied to an experimentally acquired sensor data set from a three-dimensional phantom. The results are compared with focal point image formation.
© 2009 Optical Society of America
OCIS Codes
(040.5160) Detectors : Photodetectors
(080.2720) Geometric optics : Mathematical methods (general)
(100.6890) Image processing : Three-dimensional image processing
(110.0110) Imaging systems : Imaging systems
(110.3010) Imaging systems : Image reconstruction techniques
History
Original Manuscript: September 3, 2008
Revised Manuscript: February 1, 2009
Manuscript Accepted: February 10, 2009
Published: March 12, 2009
Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics
Citation
Daniel Unholtz, Wolfhard Semmler, Olaf Dössel, and Jörg Peter, "Image formation with a microlens-based optical detector: a three-dimensional mapping approach," Appl. Opt. 48, D273-D279 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-10-D273
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