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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.
Remark Office OMR 1.0 was released in 1991. The need for OMR software originated because early optical mark recognition systems used dedicated scanners and special pre-printed forms with drop-out colors and registration marks. Such forms typically cost US$0.10 to $0.19 a page. [13]
A mobile device with a built-in camera, such as a smartphone, can function as the latter type of barcode reader using specialized application software and is suitable for both 1D and 2D codes. Barcoded rolling stock in the UK, 1962. The barcode was invented by Norman Joseph Woodland and Bernard Silver and patented in the US in 1952. [1]
A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner , it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.
Being able to use a full 8 + 1 ⁄ 2 in × 11 in (22 cm × 28 cm) answer sheet rather than a 7 + 3 ⁄ 8 in × 3 + 1 ⁄ 4 in (18.7 cm × 8.3 cm) mark sense card, eliminated the need to use multiple answer cards per test per student, as well as dramatically increased the marking speed for test answers.
Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...
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Scan-Optics' records management, [1] information, data remanence, data backup and data recovery services are supplied to government and business customers throughout North America [2] [3] and Europe, [4] while its industrial high-speed digital imaging and OCR SO-series scanners are being used worldwide.