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Design of Fiducials for Accurate Registration Using Machine Vision
December 1990 (vol. 12 no. 12)
pp. 1196-1200

The effect of the shape and size of a standard feature (fiducial) on the positional accuracy of the centroid in machine-vision applications is studied. It is shown that a circular fiducial provides superior subpixel registration accuracy among the fiducial shapes typically used today.

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Index Terms:
fiducials; machine vision; shape; size; standard feature; centroid; subpixel registration accuracy; computer vision; computerised pattern recognition
C.B. Bose, I. Amir, "Design of Fiducials for Accurate Registration Using Machine Vision," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 12, no. 12, pp. 1196-1200, Dec. 1990, doi:10.1109/34.62609
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