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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 20 — Jul. 10, 1999
  • pp: 4306–4315

Optical Fourier Processor and Point-Diffraction Interferometer for Moving-Object Trajectory Estimation

Pierre M. Lane and Michael Cada  »View Author Affiliations


Applied Optics, Vol. 38, Issue 20, pp. 4306-4315 (1999)
http://dx.doi.org/10.1364/AO.38.004306


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Abstract

A hybrid optical–digital signal processing system that estimates the trajectory of moving targets in a two-dimensional field at video frame rates was developed and constructed. The hybrid system is particularly well suited to the trajectory estimation of small, barely discernable, moving objects of unknown position and velocity in high-resolution image sequences. The system uses an optical Fourier processor and a point-diffraction interferometer to calculate the frequency-domain representation of moving objects from which their trajectory is estimated by use of conventional electronic processing techniques. In a series of experiments, target velocities were estimated to within 4% of their actual value and direction was estimated to within 3 deg.

© 1999 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.1160) Image processing : Analog optical image processing
(150.0150) Machine vision : Machine vision

Citation
Pierre M. Lane and Michael Cada, "Optical Fourier Processor and Point-Diffraction Interferometer for Moving-Object Trajectory Estimation," Appl. Opt. 38, 4306-4315 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-20-4306

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