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The specially shaped test integration zones (3-5), which may be partly overlapped (43, 45), are dimensioned so that receiver outputs (I1-I3) are either equal or in a monotonically decreasing sequence with increasing radial distance from the optical axis. A difference device (8) compares successive s...

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Bibliographic Details
Main Authors LOEFFLER, WOLFGANG., O-6902 JENA, DE, THORWIRTH, GUENTER., O-6902 JENA, DE
Format Patent
LanguageGerman
Published 24.08.1995
Edition6
Subjects
CALCULATING
COMPUTING
COUNTING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The specially shaped test integration zones (3-5), which may be partly overlapped (43, 45), are dimensioned so that receiver outputs (I1-I3) are either equal or in a monotonically decreasing sequence with increasing radial distance from the optical axis. A difference device (8) compares successive signals and produces difference signals (delta I1, delta I2) for comparison (9) with those obtd. from an unstructured object. The receiver outputs (I1-I3) may be weighted by multiplication by suitable coeffts. USE/ADVANTAGE - In e.g. robot vision and automation technology, medicine and geophysical remote sensing, the vol. of data to be handled for optical parallel image processing is reduced.
Bibliography:Application Number: DE19914103033