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Search Publications by: Shahram Orandi ()

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Displaying 26 - 34 of 34

Does the Angle of a Fingerprint Scanner Affect User Performance?

September 22, 2008
Author(s)
Mary F. Theofanos, Ross J. Micheals, Shahram Orandi, Brian C. Stanton, Nien F. Zhang, Charles L. Sheppard
As the deployment of biometric technologies such as fingerprints has become more widespread in government applications there is an increased awareness of the human-computer interaction that such technologies involve. User behavior can impact operational

Assessing Face Acquisition

September 15, 2008
Author(s)
Mary F. Theofanos, Brian C. Stanton, Charles L. Sheppard, Ross J. Micheals, John M. Libert, Shahram Orandi
The requirements necessary for taking a successful face picture are arguably the least constrained of any biometric. The camera must be operational, and the subject must be illuminated sufficiently and facing the camera. Yet, a significant portion of the

How the User can Improve Fingerprint Image Quality

May 12, 2008
Author(s)
Mary F. Theofanos, Ross J. Micheals, Shahram Orandi, Brian C. Stanton, Nien F. Zhang
Traditionally the biometric field has viewed the user as a passive source of the biometric sample rather than an interactive component of the biometric system. But fingerprint image quality is highly dependent on the human computer interaction and

Usability Testing of Ten-Print Fingerprint Capture

October 8, 2007
Author(s)
Brian C. Stanton, Mary F. Theofanos, Shahram Orandi, Ross J. Micheals, Nien F. Zhang
Despite the increased deployment of biometric technologies in United States government applications, not enough attention is being paid to the human factors that such technologies involve. The use of biometric applications will be unfamiliar to many users

Biometric Systematic uncertatinty and the User

September 12, 2007
Author(s)
Mary F. Theofanos, Ross J. Micheals, Shahram Orandi, Brian C. Stanton
Often biometric technology and system evaluators are concerned with capturing accurate performance estimates that predict performance for target populations of interest. Occasionally, predictions, and perhaps adjustments, for subpopulations based on

Effects of Scanner Height on Fingerprint Capture

June 27, 2007
Author(s)
Mary Theofanos, Shahram Orandi, Ross J. Micheals, Brian Stanton, Nien F. Zhang
Although there is widespread deployment of biometric technologies such as fingerprint systems, little attention is being paid to the human-computer interaction that such technologies involved. This report presents the results of a study that examined the

Usability Testing of Ten-Print Fingerprint Capture

March 13, 2007
Author(s)
Mary Theofanos, Brian Stanton, Shahram Orandi, Ross J. Micheals, Nien F. Zhang
The Department of Homeland Security (DHS) and the United States Visitor and Immigrant Status Indicator Technology (US-VISIT) program are migrating from a two print capture process (left and right index fingers) to a ten-print slap fingerprint capture

A Taxonomy of Definitions for Usability Studies in Biometrics

November 27, 2006
Author(s)
Ross J. Micheals, Brian C. Stanton, Mary F. Theofanos, Shahram Orandi
Historically, usability research strives to focus on user behavior in a manner that is as system independent as possible. Although ¿ISO/IEC JTC 1/SC 37 Standing Document 2 ¿ Harmonized Biometric Vocabulary, Draft N1779¿ provides a foundation towards common