Use of the Discrete Cosine Transform For The Restoration Of An Image Sequence.

Marc P. J. Acheroy

doi:10.1117/12.952168

5 May 1986 Use of the Discrete Cosine Transform For The Restoration Of An Image Sequence.

Marc P. J. Acheroy

Proceedings Volume 0593, Medical Image Processing; (1986) https://doi.org/10.1117/12.952168
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

The Discrete Cosine Transform (DCT) is recognized as an important tool for image compression techniques. Its use in image restoration is, however, not well known. It is the aim of this paper to provide a restoration method for a sequence of images using the DCT as well for the deblurring as for the noise reduction. It is shown that the DCT can play an interesting role in the deconvolution problem for linear imaging systems with finite, invariant and symmetric impulse response. It is further shown that the noise reduction can be performed onto an image sequence using a time adaptive Kalman filter in the domain of the Karhunen-Loeve transform which is approximated by the DCT.

Citation Download Citation

Marc P. J. Acheroy "Use of the Discrete Cosine Transform For The Restoration Of An Image Sequence.", Proc. SPIE 0593, Medical Image Processing, (5 May 1986); https://doi.org/10.1117/12.952168

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