[ros-users] call for an official ROS USB camera package
morris at ee.ccny.cuny.edu
Mon Jun 6 22:03:49 UTC 2011
On Mon, 2011-06-06 at 14:53 -0700, Patrick Mihelich wrote:
> On Mon, Jun 6, 2011 at 2:26 PM, Bill Morris <morris at ee.ccny.cuny.edu>
> > > I would like to see a system for storing camera
> calibrations based on
> > The camera_info_manager URL supports any naming scheme
> In the unstable version of the OpenNI (Kinect) drivers, I've tried out
> a system for storing calibrations based on serial number. You can pass
> in a URL containing "%s", and the driver replaces that with the camera
> name. The camera name is of the form "[rgb|depth]_[serial#]". For
> example, if you give the driver a URL "/tmp/calibration_%s.yaml" it
> might expand to "/tmp/calibration_depth_B00362708888047B.yaml". This
> makes working with multiple Kinects a lot easier.
That reminds me that in testing I found that the calibrations are
different at different resolutions and frame rates.
At least one Logitech camera has a "feature" that it changes it's FOV at
different frame rates.
So something like this may be more appropriate
~/.ros/calibration/usb_camera-046d08210001-640x480 at 30.yaml
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