optical scanning

Machine vision input

Optical scanning is the process of using light and sensors to convert physical images or text into digital data.

A scanner passes light over a document, photograph, or barcode, detecting variations in reflection to create a digital representation.

The technology underlies everything from office document scanners to supermarket checkout systems reading barcodes to machines grading standardized tests: Fill in the bubbles completely for accurate optical scanning.

Related

medical imaging · facial recognition · fingerprint reader · spectrophotometer · LiDAR · holography · OCR · industrial automation · 3D modeling · biometric authentication · passport control · QR code · check deposit · photogrammetry

Opposites
data input method

optical scanninghandwriting

Manual letter formation

manual typing · keypunching · manual input · touch typing

information processing approach

optical scanningvisual inspection

Examination by sight alone

Family

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Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G