TINKU ACHARYA, PhD, is Chief Science Officer and Senior Executive Vice President of Avisere, Inc., Tucson, Arizona, and an adjunct professor in the Department of Electrical Engineering at Arizona State University, Tempe, Arizona. With seventy-four U.S. patents, fourteen European patents, and more than fifty patents pending, Professor Acharya has been recognized as Intel Corporation’s "Most Prolific Inventor" in 1999 and 2001 worldwide and for five consecutive years (1997—2001) in Arizona. He has published three books and more than sixty papers in the area of multimedia computing.

PING-SING TSAI, PhD, is Assistant professor in the Department of Computer Science of the University of Texas-Pan American, in Edinburg, Texas. He has published more than twenty journal and conference papers, holds thirteen patents, and has five patents pending.