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Video processing

Jan Biemond
Delft University of Technology

Many unique records of archived motion pictures are in a fragile state and contain many artifacts. Preservation of these pictures can be achieved by copying them onto new digital media in compressed format, using, for instance, the MPEG standard. Restoration of the old film sequences prior to renewed storage is often beneficial both in terms of visual quality and in terms of coding efficiency. Restoring old image sequences manually is a tedious and costly process and therefore the use of an automated system for image restoration capable of dealing with common and less common artifacts is beneficial. This paper presents the AURORA project, whose goal it is to create such an automated system for image restoration. Three algorithms developed within the AURORA project for dealing with artifacts as noise, blotches and intensity flicker, are described here. The successfulness of these algorithms is demonstrated using both common measures of performance and using a new objective measure based on coding efficiency.

Jan Biemond was born in De Kaag, The Netherlands. He received the M.S. and Ph.D degrees in electrical engineering from Delft University of Technology, Delft, The Netherlands, in 1973 and 1982, respectively. Currently, he is Professor and Chairman of the Information Theory Group of the Department of Electrical Engineering at Delft University of Technology. His research interests include multidimensional signal processing, image enhancement and restoration, video compression (digital TV, stereoscopic TV, and HDTV), and motion estimation with applications in image coding and computer vision. He has authored and co-authored extensively in these fields. He was recipient of the Dutch Telecom Award "Vederprijs" in 1986 for his contributions in the area of digital image processing, in particular in image restoration and subband coding. He was a Distinguished Lecturer of the IEEE Signal Processing Society for 1993-1994 and he is a Fellow of the Institute of Electrical and Electronic Engineers (IEEE). In 1983 he was a Visiting Professor at Rensselaer Polytechnic Institute, Troy, NY, and at Georgia Institute of Technology, Atlanta, GA. He is a former member of the IEEE-SPS Technical Committee on Image and Multidimensional Signal Processing and a member of the IEEE-CAS Technical Committee on Visual Signal Processing and Communications, since 1988. He has served as the General Chairman of the Fifth ASSP/EURASIP Workshop on Multidimensional Signal Processing, held at Noordwijkerhout, The Netherlands, in September 1987. Further, he is a former member of the Administrative Committee of the European Association for Signal Processing (EURASIP) and a former of the Board of Governors of the IEEE-SP Society. He is a former Co-Editor of the International Journal on Multidimensional Systems and Signal Processing, and he serves on the Editorial Boards of Image Communication, and the Journal of Visual Communication and Image Representation. He is the Scientific Editor of a series of books on Image Communication with Elsevier Science BV. Currently, he is a member of the European Science Foundation for European Research Conferences. He was the General Chairman of the 1997 Visual Communication and Image Processing Conference (VCIP-97) held in San Jose, CA.

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