LOW-POWER IMAGE CHANGE DETECTOR

LOW-POWER IMAGE CHANGE DETECTOR

A sensing device projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the point-spread response distributes spatial modulations over a relatively large area on the array. The spatial modulations are captured by the array, and p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ERICKSON, Evan, L, STORK, David, G, GILL, Patrick, R, TRINGALI, James
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:A sensing device projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the point-spread response distributes spatial modulations over a relatively large area on the array. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. An image-change detector incorporating such a sensing device uses very little power because only a small number of active pixels are required to cover a visual field.