Chinese Journal of Lasers, Volume. 39, Issue 11, 1108014(2012)
Novel Calibration Method for Axes in Line Structured Light Vision Measurement System
In order to simplify calibration procedures of translation and rotation axes, a flexible calibration method based on one-dimensional plane target is proposed. Plane target is placed on platform, then the platform is translated and rotated, respectively. The centers of every concentric circle at each location are extracted. The spatial location of system axes are determined using principles of vanishing points and perspective-three-point (P3P). Experimental results indicate that this calibration method has high accuracy; its average absolute measuring accuracy is 0.0411 mm, and its root mean square (RMS) error is 0.0625 mm. This calibration method requires only three collinear points to complete high-precision calibration of translation and rotation axes, which therefore can reduce calibration cost. It concludes that the calculation is flexible and suitable for field calibration.
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Chen Xinyu, Ma Zi, Chen Tianfei, Li Peng. Novel Calibration Method for Axes in Line Structured Light Vision Measurement System[J]. Chinese Journal of Lasers, 2012, 39(11): 1108014
Category: measurement and metrology
Received: Jun. 20, 2012
Accepted: --
Published Online: Oct. 19, 2012
The Author Email: Xinyu Chen (chensavvy@163.com)