Title :
Expansion of the image using the B-spline surface
Author :
Kato, Norito ; Yasukawa, Hiroshi ; Taguchi, Akira
Author_Institution :
Aichi Prefectural Univ., Nagakute, Japan
Abstract :
Some image enlarging methods use extrapolation of high-frequency components. The image enlarging method using the Bezier surface has been proposed, where it is assumed that each pixel has energy. The pixel energy is invariant during the enlarging process. We propose a new method using the B-spline surface, and evaluate the effectiveness of the proposed method by using the PSNR value.
Keywords :
image reconstruction; interpolation; splines (mathematics); B-spline surface; Bezier surface; PSNR; extrapolation; image enlargement; image expansion; image interpolation; Digital cameras; Digital images; Frequency; Image analysis; Interpolation; Pixel; Satellite broadcasting; Spline; Surface treatment; TV broadcasting;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2004. ISPACS 2004. Proceedings of 2004 International Symposium on
Print_ISBN :
0-7803-8639-6
DOI :
10.1109/ISPACS.2004.1439119
