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Thought I'd answer my own question because I figured a way to do it.
Once you have calibrated your camera and clicked the save and commit button you will find a file
/tmp/calibrationdata.tar.gz
Copy it to some location and then extract it as
tar -xzf calibrationdata.tar.gz
You will get a left.yaml and right.yaml file. If not use this to get the files.
Once that's done you will need a launch file that looks something like this
<group ns="stereo">
<node pkg="uvc_camera" type="uvc_stereo_node" name="uvc_camera_stereo">
<param name="width" type="int" value="640" />
<param name="height" type="int" value="480" />
<param name="fps" type="int" value="30" />
<param name="frame" type="string" value="wide_stereo" />
<param name="auto_focus" type="bool" value="False" />
<param name="focus_absolute" type="int" value="0" />
<!-- other supported params: auto_exposure, exposure_absolute, brightness, power_line_frequency -->
<param name="left/device" type="string" value="/dev/video1" />
<param name="right/device" type="string" value="/dev/video2" />
<param name="left/camera_info_url" type="string" value="file://$(find ksas)/cameracalibration/left.yaml" />
<param name="right/camera_info_url" type="string" value="file://$(find ksas)/cameracalibration/right.yaml" />
</node>
</group>
Note:
ksas
is the name of the package I have written.