TY - GEN
T1 - A subpixel image matching technique using phase-only correlation
AU - Nagashima, Sei
AU - Aoki, Takafumi
AU - Higuchi, Tatsuo
AU - Kobayashi, Koji
PY - 2006/1/1
Y1 - 2006/1/1
N2 - This paper presents a high-accuracy image matching technique using a Phase-Only Correlation (POC) function. The POC-based image matching enables estimation of image displacements with 1/10-1/100-pixel accuracy by a function fitting technique using the closed-form representation of the POC function's peak. This method requires an iterative process for the nonlinear function fitting, resulting in long computation times. In this paper, we propose a Peak Evaluation Formula (PEF) that directly estimates the correlation peak location from actual 2-D data array of the POC function. Experimental evaluation shows that the proposed method reduces computation time without sacrificing image matching accuracy.
AB - This paper presents a high-accuracy image matching technique using a Phase-Only Correlation (POC) function. The POC-based image matching enables estimation of image displacements with 1/10-1/100-pixel accuracy by a function fitting technique using the closed-form representation of the POC function's peak. This method requires an iterative process for the nonlinear function fitting, resulting in long computation times. In this paper, we propose a Peak Evaluation Formula (PEF) that directly estimates the correlation peak location from actual 2-D data array of the POC function. Experimental evaluation shows that the proposed method reduces computation time without sacrificing image matching accuracy.
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U2 - 10.1109/ISPACS.2006.364751
DO - 10.1109/ISPACS.2006.364751
M3 - Conference contribution
AN - SCOPUS:45249125180
SN - 0780397339
SN - 9780780397330
T3 - 2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
SP - 701
EP - 704
BT - 2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
Y2 - 12 December 2006 through 15 December 2006
ER -