System for interpreting scannable marks

Details System for interpreting scannable marks System for interpreting scannable marks

G - Physics

06

K

G06K 9/18 (2006.01) G06K 7/14 (2006.01)

Patent

CA 2131222

To determine a read level threshold for discriminating those response bubbles on a scannable answer sheet intended to be marked from those response bubbles not intended to be marked, an adjustable read level threshold is dynamically determined based on the read levels of a designated pool of response bubbles.

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