ROS 相机校准器出错

Question

我在 Ubuntu 20.04 运行ning ros_core 和 Raspberry Pi 运行ning 相机节点上安装了 ROS。我尝试运行 rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.108 image:=/cv_camera/image camera:=/cv_camera 我收到以下错误：

Traceback (most recent call last):
  File "/opt/ros/noetic/lib/camera_calibration/cameracalibrator.py", line 37, in <module>
    import message_filters
  File "/opt/ros/noetic/lib/python3/dist-packages/message_filters/__init__.py", line 35, in <module>
    import rospy
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/__init__.py", line 49, in <module>
    from .client import spin, myargv, init_node, \
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/client.py", line 60, in <module>
    import rospy.impl.init
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/impl/init.py", line 54, in <module>
    from .tcpros import init_tcpros
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/impl/tcpros.py", line 45, in <module>
    import rospy.impl.tcpros_service
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/impl/tcpros_service.py", line 54, in <module>
    from rospy.impl.tcpros_base import TCPROSTransport, TCPROSTransportProtocol, \
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/impl/tcpros_base.py", line 160
    (e_errno, msg, *_) = e.args
                   ^
SyntaxError: invalid syntax

我通过 apt 安装了 python2 和 python2-dev，然后通过 get-pip.py 安装了 pip。然后我运行pip install pyyaml opencv-python安装校准器需要的依赖。在安装 python2 之前，我尝试使用 python3 运行它，但我认为它需要 python2。我应该怎么办。我有相机发布所有正确的主题。另外，我运行 rosrun rqt_image_view rqt_image_view 时只看到黑白屏幕。请帮忙！

Answer 1

您必须找到 /opt/ros/noetic/lib/camera_calibration/cameracalibrator.py 下的校准器文件，然后运行手动找到它。

ROS 相机校准器出错

ROS Camera Calibrator Errors Out

python

python-3.x

camera

ros

camera-calibration