| 摘要 |
<p>A photogrammetric measurement system is positioned at a vantage point to detect and calibrate its reference frame to the external reference frame demarcated by a light-reflecting retroreflective target dot (602) on a spherical target (600). A tetrahedron framework with the spherical target (600) mounted on one of the vertices serves as a reference target (400) that is placed in front of a non-contact sensor (240) to be calibrated. The photogrammetric measurement system reads and calibrates the position of the retroreflective target dot (602) while the structured light of the sensor (420) is projected onto the framework of the reference target (400). The structured light intersects with and reflects from the reference target (400), providing the non-contact sensor (240) with positional and orientation data. This data is correlated to map the coordinate system of the non-contact sensor (240) to the coordinate system of the external reference frame.</p> |
