Proposals for a computer-controlled orbital scanning camera for remote image aquisition

Christopher O. Nwagboso

doi:10.1117/12.28063

1 February 1991 Proposals for a computer-controlled orbital scanning camera for remote image aquisition

Christopher O. Nwagboso

Proceedings Volume 1454, Beam Deflection and Scanning Technologies; (1991) https://doi.org/10.1117/12.28063
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

A method is described for acquiring remote images from a reciprocating axisymmetric aircraft seal ring. The method relies on orbital scanning technique which allows a CCD camera and fiber optic probe to be positioned on azimuth plane within the 2(pi) radian of the inner circumference of the seal ring. The orbital motion which can be controlled by a computer allows the wider coverage of the seal ring surface but in incremental sector bases. The motion control which is based on a stepper motor and a CY500 controller is described. Position accuracy of the probe on the azimuth plane was analyzed. Errors were identified based on pure rotation of the probe, and also for rotation of the probe and the seal ring. Some experimental results obtained with an orbital motion of the fiber optic probe show that image acquisition is possible with the technique.

Citation Download Citation

Christopher O. Nwagboso "Proposals for a computer-controlled orbital scanning camera for remote image aquisition", Proc. SPIE 1454, Beam Deflection and Scanning Technologies, (1 February 1991); https://doi.org/10.1117/12.28063

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KEYWORDS

Image acquisition

Scanners

Cameras

Fiber optics

Imaging systems

Computing systems

CCD cameras

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