optical character recognition


Also found in: Dictionary, Medical, Acronyms, Wikipedia.

optical character recognition

(OCR), method for the machine-reading of typeset, typed, and, in some cases, hand-printed letters, numbers, and symbols using optical sensingoptical sensing,
in general, any method by which information that occurs as variations in the intensity, or some other property, of light is translated into an electric signal. This is usually accomplished by the use of various photoelectric devices.
..... Click the link for more information.
 and a computer. The light reflected by a printed text, for example, is recorded as patterns of light and dark areas by an array of photoelectric cellsphotoelectric cell
or photocell,
device whose electrical characteristics (e.g., current, voltage, or resistance) vary when light is incident upon it. The most common type consists of two electrodes separated by a light-sensitive semiconductor material.
..... Click the link for more information.
 in a optical scanner. A computer program analyzes the patterns and identifies the characters they represent, with some tolerance for less than perfect and uniform text. OCR is also used to produce text files from computer files that contain images of alphanumeric characters, such as those produced by fax transmissions. See also computer graphicscomputer graphics,
the transfer of pictorial data into and out of a computer. Using analog-to-digital conversion techniques, a variety of devices—such as curve tracers, digitizers, and light pens—connected to graphic computer terminals, computer-aided design
..... Click the link for more information.
; pen-based computerpen-based computer,
computer that uses software to enable it to accept handwriting or drawing as a form of input. A stylus, which may contain special electronic circuitry, may be used to write on the computer display or on a separate tablet.
..... Click the link for more information.
; personal digital assistantpersonal digital assistant
(PDA), lightweight, hand-held computer designed for use as a personal organizer with communications capabilities; also called a handheld. A typical PDA has no keyboard, relying instead on special hardware and pen-based computer software to enable the
..... Click the link for more information.
.

optical character recognition

[′äp·tə·kəl ′kar·ik·tər ‚rek·ig‚nish·ən]
(computer science)
That branch of character recognition concerned with the automatic identification of handwritten or printed characters by any of various photoelectric methods. Abbreviated OCR. Also known as electrooptical character recognition.

Optical Character Recognition

(text)
(OCR, sometimes /oh'k*/) Recognition of printed or written characters by computer. Each page of text is converted to a digital using a scanner and OCR is then applied to this image to produce a text file. This involves complex image processing algorithms and rarely achieves 100% accuracy so manual proof reading is recommended.
References in periodicals archive ?
Optical character recognition technology accesses a computer by scanning information that is converted to text through software applications.
By combining the processing power of the Ni1000 with the highest- rated accuracy of NESTOR's optical character recognition product, NestorReader, Intel and NESTOR intend to offer a new family of high- speed optical character recognition (HOCR) products.
Since last July when we originally announced both our image spam fingerprinting and optical character recognition (OCR) defenses, we have continued to enhance our defense layers to stay ahead of the latest trends.
Part of the long-term solution will be an optical character recognition (OCR)-friendly alphanumeric font that that allows high-speed digital conversion with 100 percent accuracy.
16 /PRNewswire/ -- Price Waterhouse has introduced PC software that uses a scanner and optical character recognition (OCR) to automate the manual data entry of details from check stubs and remittance advice documents.
A world leader in multilingual Optical Character Recognition (OCR) technologies, Ligature develops, markets and supports a variety of OCR applications.
Other departments covered to a lesser extent include image processing, optical character recognition, forms processing, bar coding, output and display devices, storage management, media and data conversion technologies, data repository and research technologies, image databases, Web-enabled technologies, and workflow software.
ReadIris Pro 10 Corporate Edition: a highly accurate optical character recognition (OCR) application which recognizes 177 different languages and offers a user interface that can be switched to any of 14 different languages.

Full browser ?