Title :
HR image from multiframes by Delaunay triangulation: a synopsis
Author :
Lertrattanapanich, S. ; Bose, K.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An algorithm, based on spatial tessellation and approximation of each triangle patch in the Delaunay triangulation (with smoothness constraints) by a bivariate polynomial, is advanced to construct a high resolution (HR) high quality image from a set of low resolution (LR) frames. This algorithm, followed by post filtering, is suitable for real-time image sequence processing because of the fast expected (average) time construction of Delaunay triangulation and the local update feature.
Keywords :
approximation theory; filtering theory; image reconstruction; image registration; image resolution; image sequences; interpolation; mesh generation; polynomials; Delaunay triangulation; approximation; bivariate polynomial; high quality image; high resolution image; image registration; image restoration; interpolation; low resolution frames; multiframes; post filtering; real-time image sequence processing; smoothness constraints; spatial tessellation; Approximation algorithms; Data acquisition; Digital cameras; Filtering algorithms; Image resolution; Image restoration; Image sequences; Interpolation; Polynomials; Spatial resolution;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1040089
