Recovery of corrupted image data based on the NURBS interpolation

Authors:
Jong Wook Park;Sang Uk Lee
Affiliations:
Samsung Electron. Co., Kyeongki-do;-
Venue:
IEEE Transactions on Circuits and Systems for Video Technology
Year:
1999

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Abstract

This paper presents a recovery technique for the image block data corrupted by transmission losses, employing the two-dimensional non-uniform rational B-spline (NURBS) function. In our approach, the control grid points which generate the best approximated surface of the neighboring image data are obtained by an optimization technique. To recover the edge components in the corrupted block more faithfully, the edge linking algorithm is utilized for the estimation of the edge components, and the interpolation algorithms are modified to enhance the edge components. Computer simulation results show that the contents of the corrupted image block data, including the edge components, can he recovered more faithfully than the conventional algorithms