Type error in launch file

[Bhajneet-Singh-Bedi]

for right camera
param name="frame_id" value="$(arg camera_name)left_optical_frame"
has to be changed to
param name="frame_id" value="$(arg camera_name)right_optical_frame"

[borongyuan]

I haven't used this package in a while, so I may have forgotten some details. The images are already rectified before disparity is calculated. So they should have the same frame_id. I forgot at which step rectification is completed. But the rectification in ROS probably doesn’t use tf either. Strictly speaking, this may be an error. But if you add other frame_id, you may also need to add tf configuration.