Optical reader
Device that turns visual into digital data
An optical reader is a device that observes visual information and translates it into digital information,[1] as found within most image and barcode and matrix-code scanners.
An example of optical readers are marksense systems for elections where voters mark their choice by filling a rectangle, circle, or oval, or by completing an arrow. After the voting a tabulating device reads the votes using "dark mark logic", whereby the computer selects the darkest mark within a given set as the intended choice or vote.
See also
- Digital paper
- Optical character recognition
- Optical scan voting system
- Optical mark recognition
References
- ^ Weik, Martin H. (2000). "Optical Reader". Computer Science and Communications Dictionary. Boston: Springer. p. 1183. doi:10.1007/1-4020-0613-6_13126. ISBN 978-1-4020-0613-5. Retrieved 10 February 2023.
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