ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
2019-05-20 09:04:47 -0500 | received badge | ● Enlightened (source) |
2019-05-20 09:04:47 -0500 | received badge | ● Good Answer (source) |
2017-08-17 02:35:17 -0500 | received badge | ● Nice Answer (source) |
2016-09-08 02:16:25 -0500 | answered a question | How to install hokuyo_node/urg_node on kinetic? You will need to install and compile driver_base from sources too First compile driver_common and then you should be able to compile hokuyo_node |
2015-06-12 11:38:59 -0500 | received badge | ● Student (source) |
2015-03-13 05:18:47 -0500 | answered a question | Where to configure the detecting range of urg_node? You could use the LaserScanRangeFilter of the laser_filters package. |
2015-03-10 11:07:33 -0500 | received badge | ● Teacher (source) |
2015-03-10 10:35:31 -0500 | answered a question | Roslaunch arguments problems I'm not sure about that but I think you can't use the "~" to define your home directory in a launch file. You could try something like: or use the full path to the .yml file. |
2015-02-23 16:41:21 -0500 | received badge | ● Famous Question (source) |
2015-01-07 17:30:43 -0500 | received badge | ● Notable Question (source) |
2014-12-22 01:15:27 -0500 | received badge | ● Popular Question (source) |
2014-12-19 09:32:29 -0500 | asked a question | Robot localization using AR tags Hello, I am trying to make a robot localization system using AR tags positioned on the ceiling. For that I am using the ar_track_package, a Turtlebot2 robot, and a Kinect pointing upwards. The idea is to get and publish the transformation map->odom, using the fixed transformation map->ar_marker, and the transformation camera->ar_marker, obtained from the ar_track_alvar node. This is the tf tree of the system I am using. This is a part of the code I'm using to get and publish the map->odom transformation. The full code is here. The problem I have is that I only get an proximation of the localization of the robot. Sometimes works relatively well, but most of the time the map->odom transformation has a variation of 1 meter aprox, or even more. I would expect to have more accurate results because the camera->ar_marker (and the odom->camera) transformations are very accurate and they only have a variation of 1 or 2 cm. Here is a short video of rviz with the problem I'm having. And here is a bag file with the topics used. My guess is that something weird is happening with the tf times when requesting the transformation with transformPose(...), but I haven't found any solution yet to the problem. Any help or hint would be appreciated. Thanks. |
2014-12-11 03:17:06 -0500 | received badge | ● Enthusiast |
2014-08-22 11:16:51 -0500 | received badge | ● Supporter (source) |