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ankitdhall / lidar_camera_calibration

ROS package to find a rigid-body transformation between a LiDAR and a camera for "LiDAR-Camera Calibration using 3D-3D Point correspondences"
http://arxiv.org/abs/1705.09785
GNU General Public License v3.0
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calibration process stuck #12

Closed ghost closed 7 years ago

ghost commented 7 years ago

I followed the instruction and running the calibration toolbox in ubuntu14.04. But the process is stuck at 'Reading CameraInfo from configuration file' and not continue. I'm not sure it's my settings problem or my laptop is not powerful enough? Btw, the velodyne and camera nodes are running in another machine. I access them via ROS Master. Thanks! screenshot from 2017-08-15 11 44 47

ghost commented 7 years ago

I figured out the problem was didn't uncomment the sections in launch file. Now I'm having another problem where the toolbox seems can't subscribe to the velodyne. Again, the velodyne node is running on another machine. rostopic list shows both camera topic and velodyne topic ![Uploading 2.png…]()

ankitdhall commented 7 years ago

Assuming the networking part is working correctly. There are a couple of things you can look into. [1] Make sure the timestamps for each topic are synchronized [2] lidar_camera_calibration.yaml should have the correct names of the topics being published by the velodyne and camera, so that the node can subscribe to them and begin the calibration process.

Also, you can have a look at issue #5 for [1].

jediofgever commented 6 years ago

Hi, I hit the same error. I tried to do step 1 but unfourtunately I couldnt find a solution. Can you explain me, how to do synchronization between this two topics ? Thank you.

dkhanna511 commented 3 years ago

Hi, I am having the same issue of getting stuck at "Reading CameraInfo from configuration file". Can you tell me which part needs to be uncommented in the launch file? That would be of great help. Thanks.

jamesheatonrdm commented 2 years ago

Why was this closed? There doesn't appear to be a solution. And #5 that is linked doesn't have a solution either