February 2020
Intermediate to advanced
432 pages
10h 50m
English
Content preview from Hands-On ROS for Robotics Programming
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The Pi Camera
First, we need to record a session with the robot:
T1 $ roslaunch raspicam_node camerav2_410x308_30fps.launchT2 $ rosbag record /raspicam_node/image/compressed
Check the information about the recorded file:
$ rosbag info 2019-08-15-20-44-53_raspicamImage.bagpath: 2019-08-15-20-44-53_raspicamImage.bagversion: 2.0duration: 13.3sstart: Aug 15 2019 20:44:54.09 (1565894694.09)end: Aug 15 2019 20:45:07.38 (1565894707.38)size: 37.5 MBmessages: 400compression: none [47/47 chunks]types: sensor_msgs/CompressedImage [8f7a12909da2c9d3332d540a0977563f]topics: /raspicam_node/image/compressed 400 msgs : sensor_msgs/CompressedImage
You can perform the playback wherever you want, using the robot or the laptop. In this case, the image data is ...