现场标定
警告
现场标定功能目前仍处于实验阶段。
现场标定是一个维护工具,可用于验证和校正Zivid相机的尺寸准确度。用户可以检查视场 (FOV) 中不同区域的点云的尺寸准确度,并确定验证结果是否符合您的应用要求。如果发现验证结果对于应用来说不够准确,则可以执行校正以增加点云的尺寸准确度。多次测量的平均尺寸准确度误差的预期值接近于零 (<0.1%)。
为什么这是必要的?
Zivid相机被设计为能够在工业环境中工作并持续输出高质量点云,但像大多数高精密电子仪器一样,有时可能需要稍作调整以确保它们保持最佳性能。 当相机的工作环境发生重大变化或进行了繁重的操作时,可能需要进行校正以使其在新的设置下达到最佳的工作效果。
所需的设备
执行现场标定需要以下工具:
-
如果在Linux上运行,请安装工具deb软件包。
已包含在Windows安装里。
Official Zivid calibration board with fiducial marker.
Zivid标定板

备注
Supported from Zivid SDK 2.2.
The Zivid calibration board ZVDA-CB01 is a 300 mm x 300 mm, 3 mm thick plate of aluminum weighing 460 g. The fiducial marker identifies the board model for detection with 30 mm x 30 mm checkers in a 8x7 grid. The board comes in white silkscreen. These boards have been qualified and individually verified by Zivid, and are known to have <0.05% error.
The holes at the bottom center, as well as the holes along the sides are all suitable for mounting purposes. The Zivid calibration board ZVDA-CB01 is compatible with standard ISO 9409-1-50-4-M6, a standard for the mechanical interface of robot end effectors. This allows the calibration board to be mounted directly to the robot end-effector using M6 screws.

备注
Supported from Zivid SDK 2.16.
The Zivid calibration board ZVDA-CB02 is a 150 mm x 125 mm, 2 mm thick plate of aluminum weighing 96 g. The fiducial marker identifies the board model for detection with 20 mm x 20 mm checkers in a 6x5 grid. The board comes in white silkscreen. These boards have been qualified and individually verified by Zivid, and are known to have <0.05% error.
The holes at the bottom right are all suitable for mounting purposes.
Both Zivid calibration boards fit the Zivid mounts. For robot mounted use, we recommend installing the Zivid calibration board on a Zivid On-Arm Mount with M5 screws.

If the calibration board is stationary, we recommend mounting it on a Zivid Stationary Mount using M5 screws. It is straightforward to fix our stationary mounts to aluminum profiles with M6 screws and T-nuts. It is also possible to mount the board directly to aluminum profiles using M6 screws and T-nuts. We recommend using DIN 912 / ISO 4762 Hexagon or ISO 14579 Hexalobular socket head cap screws in stainless steel (A2 or A4) to fasten the calibration board. Use compatible flat washers to save the surface from rotation marks from screw heads, as well as nuts, when needed, both in stainless steel (A2 or A4).
如需了解有关如何使用现场标定功能的更多信息,请查看以下页面:
通过阅读 预热,继续学习如何使用您的Zivid相机进行开发。
版本历史
SDK |
变更 |
---|---|
2.16.0 |
Added support for a smaller calibration board, ZVDA-CB02 (5x6 20 mm). |
2.9.0 |
在Zivid Studio中添加了现场标定功能。 |
2.6.0 |
添加了对标定板不同方向的检测的支持。改进了针对 光晕 - 点云中的亮点 问题下棋盘格检测的鲁棒性。改善了通过 |
2.3.0 |
改进了算法以在某些情况下产生更好的标定后精度。改善了标定API和现场标定中使用的棋盘格检测的鲁棒性。修复了在输入数据实际上足以满足计算标定时,仍会出现 "No significant correction could be identified (noise >> signal)."异常的问题。 |
2.2.0 |
添加了实验性的现场标定API和命令行工具 |