High resolution image formation from low resolution frames using Delaunay triangulation

被引：123
作者：
Lertrattanapanich, S [1 ]
Bose, NK [1 ]
机构：
[1] Penn State Univ, Dept Elect Engn, Spatial & Temporal Signal Proc Ctr, University Pk, PA 16802 USA
来源：
IEEE TRANSACTIONS ON IMAGE PROCESSING | 2002年 / 11卷 / 12期
关键词：
Delaunay triangulation; high resolution algorithm; image sequence; interpolation; surface fitting;
D O I：
10.1109/TIP.2002.806234
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
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. The high resolution algorithm is accompanied by a site-insertion algorithm for update of the initial HR image with the availability of more LR frames till the desired image quality is attained. 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.
引用
收藏
页码：1427 / 1441
页数：15
相关论文
共 55 条
[11]   COMPUTING DIRICHLET TESSELLATIONS [J].
BOWYER, A .
COMPUTER JOURNAL, 1981, 24 (02) :162-166
[12]   Parametric blur estimation using the generalized cross-validation criterion and a smoothness constraint on the image [J].
Chardon, S ;
Vozel, B ;
Chehdi, K .
MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING, 1999, 10 (04) :395-414
[13]  
Delaunay B., 1934, Bull. Acad. Sci. USSR. Cl. Sci. Math, V7, P1
[14]  
Deslauriers G., 1987, FRACTALS DIMENSIONS, P44
[15]  
DONOHO DL, 1993, RECENT ADV WAVELET A, P259
[16]   HIGHER-DIMENSIONAL VORONOI DIAGRAMS IN LINEAR EXPECTED TIME [J].
DWYER, RA .
DISCRETE & COMPUTATIONAL GEOMETRY, 1991, 6 (04) :343-367
[17]   Restoration of a single superresolution image from several blurred, noisy, and undersampled measured images [J].
Elad, M ;
Feuer, A .
IEEE TRANSACTIONS ON IMAGE PROCESSING, 1997, 6 (12) :1646-1658
[18]   Superresolution restoration of an image sequence: Adaptive filtering approach [J].
Elad, M ;
Feuer, A .
IEEE TRANSACTIONS ON IMAGE PROCESSING, 1999, 8 (03) :387-395
[19]   A fast super-resolution reconstruction algorithm for pure translational motion and common space-invariant blur [J].
Elad, M ;
Hel-Or, Y .
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2001, 10 (08) :1187-1193
[20]   Wavelet basis reconstruction of nonuniformly sampled data [J].
Ford, C ;
Etter, DM .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1998, 45 (08) :1165-1168
123456