Fast recovery of rotational symmetry parameters using gradient  orientation

Chang-Ming Sun

doi:10.1117/1.601290

1 April 1997 Fast recovery of rotational symmetry parameters using gradient orientation

Chang-Ming Sun

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Optical Engineering, Vol. 36, Issue 4, (April 1997). https://doi.org/10.1117/1.601290

Symmetry detection is important in the area of computer vision. A simple and fast algorithm for the recovery of rotational symmetry parameters is developed. The fold number of a rotationally symmetrical shape is obtained from the gradient orientation histogram of the input gray-level image using the Fourier method, based on the relationship between the periodicity of the orientation histogram and the fold number of the symmetrical shape. It takes only 0.06 s CPU time for a 256 3256 gray image on a Sun SPARC10. Both simulated and real images are tested and the results are very convincing.

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Chang-Ming Sun "Fast recovery of rotational symmetry parameters using gradient orientation," Optical Engineering 36(4), (1 April 1997). https://doi.org/10.1117/1.601290

Published: 1 April 1997

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