Recovery of corrupted image data based on the NURBS interpolation

Author

Park, Jong Wook ; Lee, Sang Uk

Author_Institution

Samsung Electron. Co., Kyeongki-do, South Korea

Volume

9

Issue

7

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1003

Lastpage

1008

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

Keywords

Hough transforms; coding errors; image coding; image enhancement; image reconstruction; interpolation; optimisation; splines (mathematics); transform coding; 2D nonuniform rational B-spline; Hough transform; NURBS function; NURBS interpolation; approximated surface generation; block error concealment; computer simulation results; control grid points; corrupted image data recovery; edge components enhancement; edge linking algorithm; image block data; image coding; image data; image reconstruction; interpolation algorithms; optimization; transmission losses; Computer errors; Computer simulation; Discrete cosine transforms; Image reconstruction; Interpolation; Mesh generation; Spline; Surface reconstruction; Surface topography; Transform coding;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.795052

Filename

795052