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ROS kinect distance information

asked 2013-07-20 22:21:42 -0500

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I want distance information from kinect.

1, roslaunch openni_launch openni.launch

2, rostopic echo camera/depth/image

The value are 0,0,0,0,127,255,2,5,0,0.....

what is this value?

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answered 2013-07-21 20:46:34 -0500

jep31

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This is your image as mentioned in the topic title. Please read the documentation of openni_launch where the topic depth/image is explained. This is a message as sensor_msgs/Image. Look this page to know how read it.

However if you want to read the distance (depth) I advise you to use camera/depth/points inside a node as PointCloud2 or XYZ point cloud using PCL.

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Asked: 2013-07-20 22:21:42 -0500

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Last updated: Jul 21 '13

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ROS kinect distance information