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Proceedings Paper

Exponential Sensor Array Geometry And Simulation
Author(s): Carl F. R. Weiman
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Paper Abstract

Polar exponential sensor arrays have been shown to be advantageous over conventional x-y raster imaging sensors when wide field of view, high central resolution, and rotation and zoom invariance are desirable. Applications include spacecraft docking, tracking and station keeping, and mobile robot navigation. Optimal designs minimizing sensor configuration and computational requirements are critical in such mobile applications. This paper analyzes geometric parameters of polar exponential arrays, and their relation to 3-D sensing precision requirements which drive sensor design. Resolution, field of view, and perspective projection are discussed. A method for smoothly patching the "blind-spot" singularity in the sensor with a uniformly high resolution "fovea" is presented. A software testbed for simulation of the sensor geometry and mappings is described. The user can specify any resolution and field of view. Imagery generated by this simulator efficiently illustrates the geometric effects of various choices of parameters, thereby providing a design tool for construction of sensors.

Paper Details

Date Published: 22 August 1988
PDF: 9 pages
Proc. SPIE 0938, Digital and Optical Shape Representation and Pattern Recognition, (22 August 1988); doi: 10.1117/12.976585
Show Author Affiliations
Carl F. R. Weiman, Transitions Research Corporation (United States)

Published in SPIE Proceedings Vol. 0938:
Digital and Optical Shape Representation and Pattern Recognition
Richard D. Juday, Editor(s)

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