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
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
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
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
and HDTV), and motion estimation with applications in image coding and
computer vision. He has authored and co-authored extensively in these
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
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
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,