Title :
A super-resolution method based on the discrete cosine transforms
Author :
Sakane, Hisashi ; Nishikawa, Kiyoshi ; Kiya, Hitoshi
Author_Institution :
Dept. of Elee. & Info. Eng., Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 192-03, Japan
Abstract :
A super-resolution method based on the discrete cosine transform (DCT) is proposed for a signal with some frequency damage under a type 1 linear-phase (LP) FIR filter as a damage model. The proposed method can be carried out with real value operation and is applicable to any DCT in 4 kinds of DCTs. In addtion, two magnification schemes based on the proposed method to improve the conventional scheme are described.
Keywords :
Convergence; Convolution; Discrete cosine transforms; Finite impulse response filters; Frequency-domain analysis; Image resolution; Signal resolution;
Conference_Titel :
European Signal Processing Conference, 1996. EUSIPCO 1996. 8th
Conference_Location :
Trieste, Italy
Print_ISBN :
978-888-6179-83-6
