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Information on Optical Mark Recognition

The technology of Optical Mark Recognition (OMR) enables the extraction of data from human-marked fields on printed forms. OMR is a safe and speedy method of data entry. Unlike Optical Character Recognition (OCR), OMR does not require a machine with a recognition engine.

  1. How It Works

    • An optical mark reader scans marked forms, and detects the marks by gauging levels of reflected light. The resulting pattern of spaces and marks is then analyzed by the reader, and sent to a computer for reportage. Images on forms must exhibit high contrast as well as a recognizable shape.

    Advantages

    • OMR technology is employed to quickly and accurately process large numbers of hand-marked forms, such as reply cards, surveys, ballots and student exams. People who collect and sort the data do not have to be adept computer users.

    Required Equipment

    • Dedicated OMR readers use LEDs (Light Emitting Diodes) to direct reflected light on forms that pass through them. Sensors in the OMR reader identify the marks, which reflect less light. The majority of OMR readers scan professionally printed forms. OMR software, on the other hand, requires only an image scanner and a computer. The OMR application pulls out mark data from computer image files.

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