Title :
DCT Sign Only Correlation and Its Application to Image Registration
Author :
Arnia, Fitri ; Iizuka, I. ; Kobayashi, H. ; Masaaki, F. ; Kiya, H.
Author_Institution :
Dept. of Elect. Eng., Tokyo Metropolitan Univ.
Abstract :
This paper presents DCT sign only correlation (DSOC) method for image registration, the task that previously can be accomplished by phase only correlation (POC) method. The POC function corresponds to phase information of the DFT coefficients. In the DCT case, all DCT coefficients are real values, as a result, the phase information corresponds to the sign of DCT coefficients. Three DSOC methods are described and their suitability for image registration is discussed
Keywords :
design for testability; discrete cosine transforms; image registration; DCT sign only correlation; DFT coefficients; discrete cosine transform; image registration; phase information; phase only correlation; Brightness; Discrete Fourier transforms; Discrete cosine transforms; Educational institutions; Image coding; Image registration; Noise robustness; Radio frequency; Transform coding; Video compression;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342490
