Optical Mark Recognition (OMR) is a technology that has been used for data collection in a number of different application areas; surveys, voting ballots, warranty cards and test scoring to name just a few. Where OMR is used to collect data for statistical purposes, i.e. surveys and warranty cards, conventional Bi-Tonal (Black and White) images provide adequate fidelity to accomplish these applications. In applications that such as voting and test scoring, conventional Bi-Tonal images do not produce the necessary fidelity and a gray scale image is required. The application using gray scale images makes the determination, based on the gray level density of the mark, on how to record the mark. Because erasures and other extraneous marks can and do occur on these critical documents, gray scale images enable the application to differentiate between a valid mark attempt, an erasure, an errant mark or an attempt to mark two or more responses to a single request.
AccuScore 2.0 and the Assessment Market