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Style-Based Ballot Mark Recognition (with Pingping Xiu, Daniel Lopresti, Henry Baird, and George Nagy), 10th International Conference on Document Analysis and Recognition (2009)
The push toward voting via hand-marked paper ballots has focused attention on the limitations of...
 

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Pre-Processing of Degraded Printed Documents by Non-Local Means and Total Variation (with Laurence Likforman-Sulem and Jérôme Darbon), 2009 10th International Conference on Document Analysis and Recognition (2009)
We compare in this study two image restoration ap- proaches for the pre-processing of printed...
 

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Ballot Mark Detection (with Daniel Lopresti and George Nagy), 19th International Conference on Pattern Recognition (2008)
Optical mark sensing, i.e., detecting whether a “bubble” has been filled in, may seem straightforward....
 

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Human Image Preference and Document Degradation Models (with Chris Hale), Ninth International Conference on Document Analysis and Recognition (2007)
Because most degraded documents are created by people, the preferences individuals have in relation to...
 

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DIAL 2004 Working Group Report on Acquisition Quality Control (with Henry Baird, William Barrett, Frank Le Bourgeois, Xiaofan Lin, George Nagy, and Steve Simske), Second International Conference on Document Image Analysis for Libraries (2006)
This report summarizes the discussions of the Working Group on Acquisition Quality at the International...
 

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An Unsupervised Fluoroscopic Analysis of Knee Joint Kinematics (with Charles Scott), 19th IEEE International Symposium on Computer-Based Medical Systems (2006)
Knowledge of the three dimensional positions of bones at a joint as a function of...
 

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Text Degradations and OCR Training (with Tim Andersen), Eighth International Conference on Document Analysis and Recognition (2005)
Printing and scanning of text documents introduces degradations to the characters which can be modeled....
 

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Estimating Degradation Model Parameters from Character Images (with Hok S. Yam), Seventh International Conference on Document Analysis and Recognition (2003)
This paper discusses the use of character images to determine the parameters of an image...
 

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Scanner Parameter Estimation Using Bilevel Scans of Star Charts, Sixth International Conference on Document Analysis and Recognition (2001)
Scanning a high contrast image in bilevel mode results in image degradation. This is caused...