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Interpolation of missing data in image sequences

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4 Author(s)
Kokaram, A.C. ; Dept. of Eng., Cambridge Univ., UK ; Morris, R.D. ; Fitzgerald, W.J. ; Rayner, P.J.W.

This paper presents a number of model based interpolation schemes tailored to the problem of interpolating missing regions in image sequences. These missing regions may be of arbitrary size and of random, but known, location. This problem occurs regularly with archived film material. The film is abraded or obscured in patches, giving rise to bright and dark flashes, known as “dirt and sparkle” in the motion picture industry. Both 3-D autoregressive models and 3-D Markov random fields are considered in the formulation of the different reconstruction processes. The models act along motion directions estimated using a multiresolution block matching scheme. It is possible to address this sort of impulsive noise suppression problem with median filters, and comparisons with earlier work using multilevel median filters are performed. These comparisons demonstrate the higher reconstruction fidelity of the new interpolators

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Image Processing, IEEE Transactions on  (Volume:4 ,  Issue: 11 )