TY - GEN

T1 - A high-accuracy rotation estimation algorithm based on ID phase-only correlation

AU - Nagashima, Sei

AU - Ito, Koichi

AU - Aoki, Takafumi

AU - Ishii, Hideaki

AU - Kobayashi, Koji

PY - 2007/12/1

Y1 - 2007/12/1

N2 - This paper proposes a high-accuracy rotation estimation algorithm using ID Phase-Only Correlation (POC). In general, the rotation angle between two images is estimated as follows: (i) convert the image rotation into the image shift by polar mappings of the amplitude spectra of images, and (ii) estimate the translational displacement between the polar mappings to obtain the rotation angle. The problem of rotation estimation between two images is replaced to ID displacement estimation between pairs of horizontal lines at the same vertical position in two polar mappings. The proposed algorithm employs ID POC instead of 2D matching for estimating a rotation angle. The use of ID POC to estimate the rotation angle makes it possible to reduce the computational cost significantly without sacrificing the estimation accuracy.

AB - This paper proposes a high-accuracy rotation estimation algorithm using ID Phase-Only Correlation (POC). In general, the rotation angle between two images is estimated as follows: (i) convert the image rotation into the image shift by polar mappings of the amplitude spectra of images, and (ii) estimate the translational displacement between the polar mappings to obtain the rotation angle. The problem of rotation estimation between two images is replaced to ID displacement estimation between pairs of horizontal lines at the same vertical position in two polar mappings. The proposed algorithm employs ID POC instead of 2D matching for estimating a rotation angle. The use of ID POC to estimate the rotation angle makes it possible to reduce the computational cost significantly without sacrificing the estimation accuracy.

UR - http://www.scopus.com/inward/record.url?scp=37849033860&partnerID=8YFLogxK

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M3 - Conference contribution

AN - SCOPUS:37849033860

SN - 9783540742586

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 210

EP - 221

BT - Image Analysis and Recognition - 4th International Conference, ICIAR 2007, Proceedings

T2 - 4th International Conference on Image Analysis and Recognition, ICIAR 2007

Y2 - 22 August 2007 through 24 August 2007

ER -