Paper
12 January 1993 Novel synchronous detection method for obtaining directional gradients of images
Mark Storrs, David J. Mehrl
Author Affiliations +
Abstract
We describe an optical, scanning-based imaging system for directly acquiring the directional gradient of an image. We later discuss a modification to the system which enables it to track contours of moving objects. We present results of proof-to-principle experiments and discuss applications of the system to the identification of objects.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark Storrs and David J. Mehrl "Novel synchronous detection method for obtaining directional gradients of images", Proc. SPIE 1772, Optical Information Processing Systems and Architectures IV, (12 January 1993); https://doi.org/10.1117/12.140922
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KEYWORDS
Transmittance

Control systems

Raster graphics

Amplifiers

Homodyne detection

Computing systems

Heterodyning

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