Articles & Proceedings

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Evaluation of Voting with Form Dropout Techniques for Ballot Vote Counting (with Shatakshi Goyal, Robbie Scott, and Daniel Lopresti), 2011 International Conference on Document Analysis and Recognition (ICDAR) (2011)

Vote counting accuracy has become a well-known issue in the vote collection process. Digital image...

 

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Towards Improved Paper-Based Election Technology (with Daniel Lopresti, George Nagy, and Ziyan Wu), 2011 International Conference on Document Analysis and Recognition (ICDAR) (2011)

Resources are presented for fostering paper-based election technology. They comprise a diverse collection of real...

 

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Enhancement of Historical Printed Document Images by Combining Total Variation Regularization and Non-Local Means Filtering (with Laurence Likforman-Sulem and Jérôme Darbon), Image and Vision Computing (2011)

This paper proposes a novel method for document enhancement which combines two recent powerful noise-reduction...

 

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A Mask-Based Enhancement Method for Historical Documents (with Jerôme Darbon and Laurence Likforman-Sulem), Proceedings of SPIE (2011)

This paper proposes a novel method for document enhancement. The method is based on the...

 

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Characterizing Challenged Minnesota Ballots (with George Nagy, Daniel Lopresti, and Ziyan Wu), Proceedings of SPIE (2011)

Photocopies of the ballots challenged in the 2008 Minnesota elections, which constitute a public record,...

 

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Descreening of Color Halftone Images in the Frequency Domain (with C. J. Stanger and Thanh Tran), Proceedings of SPIE (2011)

Scanning a halftone image introduces halftone artifacts, known as Moiré patterns, which significantly degrade the...

 

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Document Analysis Issues in Reading Optical Scan Ballots (with Daniel Lopresti and George Nagy), DAS '10 Proceedings of the 9th IAPR International Workshop on Document Analysis Systems (2010)

Optical scan voting is considered by many to be the most trustworthy option for conducting...

 

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An Analysis of Binarization Ground Truthing, Proceedings of the 9th IAPR International Workshop on Document Analysis Systems (2010)

The accuracy of a binarization algorithm is often calculated relative to a ground truth image....

 

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2x1D Image Registration and Comparison (with Geng Zheng, Nader Rafla, and Tim Andersen), Image Processing: Machine Vision Applications III, Proceedings of SPIE-IS&T Electronic Imaging (2010)

This paper presents a novel 2x1D phase correlation based image registration method for verification of...

 

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Relating Electrophotographic Printing Model and IS013660 Standard Attributes, Image Quality and System Performance VII, Proceedings of SPIE-IS&T Electronic Imaging (2010)

A mathematical model of the electrophotographic printing process has been developed. This model can be...

 

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Effect of Pre-Processing on Binarization (with Laurence Likforman-Sulem and Jérôme Darbon), Proceedings of SPIE (2010)

The effects of different image pre-processing methods for document image binarization are explored. They are...

 

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New Metric Describes Edge Noise in Bilevel Images, SPIE Online Newsroom (2009)

A new approach enables quantitative and qualitative characterization of varying edge noise even if the...

 

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Camera-Based Ballot Counter (with George Nagy, Bryan Clifford, Andrew Berg, Glenn Saunders, and Dan Lopresti), 10th International Conference on Document Analysis and Recognition, ICDAR '09. (2009)

Portable ballot counters using camera technology and manual paper feed are potentially more reliable and...

 

Document Photography In Vitro (with George Nagy, B. Clifford, A. Berg, G. Saunders, and D. Lopresti), Third International Workshop on Camera-Based Document Analysis and Recognition (CBDAR2009) (2009)

Experiments on evaluating and improving the mechanical configuration and target illumination in a prototype camera-based...

 

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Edge Noise in Document Images (with Craig McGillivary and Chris Hale), AND 2009 Proceedings of The Third Workshop on Analytics for Noisy Unstructured Text Data (2009)

A degradation model that describes many image degradations produced by desktop scanning is used to...

 

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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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Mark Detection from Scanned Ballots (with George Nagy and Daniel Lopresti), Proceedings of SPIE (2009)

Analyzing paper-based election ballots requires finding all marks added to the base ballot. The position,...

 

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INCITS W1.1 Standards for Perceptual Evaluation of Text and Line Quality (with Edul N. Dalal, Frans Gaykema, Allan Haley, Kerry Kirk, Don Kozak, Mark Robb, Tim Qian, and Ming-Kai Tse), Proceedings of SPIE (2009)

INCITS W1.1 is a project chartered to develop an appearance-based image quality standard. This paper...

 

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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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A Document Analysis System for Supporting Electronic Voting Research (with Daniel Lopresti and George Nagy), The Eighth IAPR International Workshop on Document Analysis Systems, 2008. DAS '08. (2008)

As a result of well-publicized security concerns with direct recording electronic (DRE) voting, there is...

 

Modeling Image Degradations for Improving OCR, 16th European Signal Processing Conference (EUSIPCO) (2008)

Clean documents are relatively easy to recognize. However, when digitizing collections of documents, the clean...

 

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Correlating Degradation Models and Image Quality Metrics (with Darrin K. Reed), Proceedings of SPIE Electronic Imaging, Document Recognition and Retrieval XV (2008)

OCR often performs poorly on degraded documents. One approach to improving performance is to determine...

 

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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...

 

The Power of External Mentors for Women Pursuing Academic Careers in Engineering and Science: Stories of MentorNet ACE and Its Protégés and Mentors (with Carol B. Muller, Jennifer Chou-Green, Theda Daniels-Race, Arielle Drummond, and Katherine J. Kuchenbecker), Proceedings of the 2007 WEPAN Conference (2007)

"Finding my way through the completion of my doctorate and the start of my faculty...

 

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Recent Progress in the Development of INCITS W1.1, Appearance-Based Image Quality Standards for Printers, Proceedings of SPIE (2007)

In September 2000, INCITS W1 (the U.S. representative of ISO/IEC JTC1/SC28, the standardization committee for...

 

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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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PSF Estimation by Gradient Descent Fit to the ESF, Proceedings of SPIE Electronic Imaging, Image Quality and System Performance III (2006)

Calibration of scanners and cameras usually involves measuring the point spread function (PSF). When edge...

 

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Partitioning of the Degradation Space for OCR Training (with Tim Andersen), Proceedings of SPIE Electronic Imaging, Document Recognition and Retrieval XIII (2006)

Generally speaking optical character recognition algorithms tend to perform better when presented with homogeneous data....

 

Education by Design: Connecting Engineering and Elementary Education (with Rickie Miller), Proceedings Hawaii International Conference on Education (2006)
 

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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....

 

Engineering for Educators (with Rickie Miller), Proceedings of the 2005 American Society for Engineering Education Annual Conference and Exposition (2005)

To increase the preparedness for and interest in Engineering, as well as general math-science skills...

 

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A Study of Style Effects on OCR Errors in the MEDLINE Database (with Penny Garrison, Diane Davis, and Tim Andersen), Proceedings of SPIE (2005)

The National Library of Medicine has developed a system for the automatic extraction of data...

 

Printer Modeling for Document Imaging (with Margaret Norris), Proceedings of the 2004 International Conference on Imaging Science, Systems, and Technology (CISST'04) (2004)

The microscopic details of printing often are unnoticed by humans, but can make differences that...

 

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Reports of the DAS02 Working Groups (with David Monn, Harsha Veeramachaneni, Koichi Kise, Alessio Malizia, Leon Todoran, Adnan El-Nasan, and Rolf Ingold), International Journal of Document Analysis and Recognition (2004)

This document is a collection of four working group reports in the areas of digital...

 

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Statistical Image Differences, Degradation Features, and Character Distance Metrics (with Xiaohui Qiu), International Journal of Document Analysis and Recognition (2004)

Document image quality is degraded through processes such as scanning, printing, and photocopying. The resulting...

 

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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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Speedup of Optical Scanner Characterization Subsystem (with Roger D. Clements), Proceedings, SPIE Electronic Imaging (2003)

Small image deformations such as those introduced by optical scanners significantly reduce the accuracy rate...

 

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Relating Statistical Image Differences and Degradation Features (with Xiaohui Qiu), Lecture Notes in Computer Science (2002)

Document images are degraded through bilevel processes such as scanning, printing, and photocopying. The resulting...

 

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Uniqueness of Bilevel Image Degradations, Proceedings of SPIE (2002)

Two major degradations, edge displacement and corner erosion, change the appearance of bilevel images. The...

 

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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...

 

Bilevel Image Degradations: Effects and Estimation, 2001 Symposium on Document Image Understanding Technology (2001)

The two most significant parameters affecting degradations of bilevel images are the point spread function...

 

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Estimating Scanning Characteristics from Corners in Bilevel Images, Proceedings of SPIE Document Recognition and Retrieval VIII (2001)

Degradations that occur during scanning can cause errors in Optical Character Recognition (OCR). Scans made...

 

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Characterization of Image Degradation Caused by Scanning, Pattern Recognition Letters (1998)

A single parameter value that represents the difference between the original and the digitized characters...

 

Target Rapid Automatic Classification System (TRACS) Development Methodology (with C. Baltensperger, J. Drew, and E. Siborg), Journal of Underwater Acoustics (1993)
 

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Model Reference Adaptive Control of Cardiac Output and Blood Pressure Through Two Drug Infusions (with Howard Kaufman), Proceedings of the 5th IEEE International Symposium on Intelligent Control (1990)

Control of blood pressure and cardiac output, with dopamine and sodium nitroprusside has been achieved...

 

Contributions to Books

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Document Scanning, McGraw-Hill Yearbook of Science and Technology (2005)
 

Presentations

An Analysis of the Comparative Effectiveness of a Computerized Module in Probability Theory (with E. Bringsjord), 30th Annual Conference of the New England Educational Research Organization (1998)
 

Student Mentored Work

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Camera Imaging System (Undergraduate Research Conference Poster) (with Wayne Kreimeyer, Adrian Rothenbühler, and Anita Poudel) (2011)

* Magnetic shape memory alloys are functional materials which can remember their shape

* Currently,...

 

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Degradation Specific OCR (Masters Thesis) (2010)

Optical Character Recognition (OCR) is the mechanical or electronic translation of scanned images of handwritten,...

 

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Extending the Page Segmentation Algorithms of the OCRopus Document Layout Analysis System (Masters Thesis) (2010)

With the advent of more powerful personal computers, inexpensive memory, and digital cameras, curators around...

 

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Camera Based Image Acquisition for OCR and Other Uses (Undergraduate Research Conference Poster) (with William Grover, Kris Burch, and Josh Johnson) (2010)

A system was developed to acquire images from a digital camera with control coming from...

 

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Descreening of Halftoning (Undergraduate Research Conference Poster) (with CJ Stanger and Thanh Tran) (2010)

Halftoning is the process a printer uses to print color images using black in combination...

 

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Form Removal from Election Ballots Using Image Processing (Undergraduate Research Conference Poster) (with Shatakshi Goyal and Robbie Scott) (2010)

Vote accuracy and efficiency has become a well-known issue in the vote collection process. This...

 

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A Parallel Computing Test Bed for Performing an Unsupervised Fluoroscopic Analysis of Knee Joint Kinematics (Masters Thesis) (2009)

Fluoroscopic analysis of knee joint kinematics involves accurately determining the position and orientation of bones...

 

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Lissajous Patterns (Undergraduate Research Conference Poster) (with Arlene Fausnaugh and Prativa Bhattaraighimire) (2009)

The Discovery Center of Idaho (DCI) is always looking for new displays. The display needs...

 

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Statistical Scanner Model Validation (Undergraduate Research Conference Poster) (with CJ Stanger, Greg Ilk, Robbie Scott, and Bryce Simpson) (2009)

The process of scanning inherently introduces degradations to an image. These degradations affect the overall...