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?
Originally posted by Ichiro suzuki on ROS Answers with karma: 1 on 2013-07-20
Post score: 0
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.
Originally posted by jep31 with karma: 411 on 2013-07-21
This answer was ACCEPTED on the original site
Post score: 4