Education
He was educated at the University of Illinois at Urbana Champaign (Doctor of Philosophy 1984).
He was educated at the University of Illinois at Urbana Champaign (Doctor of Philosophy 1984).
He has made numerous fundamental contributions to the fields of Digital Image Processing, Digital Video Processing, Digital Television, Digital Cinema, and Computational Visual Perception. He is well known for his work on image processing, low-level vision, natural scene modeling, image quality and video quality. He has published more than 700 articles in these areas.
His work has been cited in the scientific and engineering literature nearly 50,000 times according to Google Scholar.
He is a Fellow of the Institute of Electrical and Electronics Engineers, a Fellow of the Optical Society of America, and a Fellow of the Society of Photo-Optical and Instrumentation Engineers (International Society for Optical Engineering). He was named a Distinguished Alumnus of the University of Illinois at Champaign-Urbana in 2008.
He is credited with the development of order statistic filters, the image modulation model, theories of foveated image processing, and in particular image quality and video quality. His work in these areas has been recognized by several Institute of Electrical and Electronics Engineers Signal Processing Society best journal paper awards.