Call for Papers Biometrics Theory, Applications and Systems (BTAS 09) The IEEE Third International Conference on Biometrics: Theory, Applications and Systems (BTAS 09) is the premier research meeting focused on biometrics. Its broad scope includes advances in fundamental pattern recognition techniques relevant to biometrics, new algorithms and / or technologies for biometrics, analysis of specific applications, and analysis of the social impacts of biometrics technology. Areas of coverage include biometrics based on voice, fingerprint, iris, face, handwriting, gait and other modalities, as well as multi-modal biometrics and new biometrics based on novel sensing technologies. Submissions will be rigorously reviewed, and should clearly make the case for a documented improvement over the existing state of the art. Experimental results for contributions in established areas such as voice, face, iris, fingerprint, and gait are encouraged to use the largest and most challenging existing publicly available datasets. Papers examining the usability of and social impact of biometrics technology are encouraged. Paper submission: May 31. Decisions to authors: July 17. Final versions: August 15 BTAS 09: September 28--30, 2009. Additional information is available on the conference web page: http://www.cse.nd.edu/BTAS_09