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2021-10-24 16:39:32 -0500 asked a question Bridge between ROS Melodic and ROS2 Galactic

Bridge between ROS Melodic and ROS2 Galactic Hi, I am pretty much new to docker and its abilities. I am wondering if it

2021-07-01 03:52:31 -0500 answered a question Converting CvImage to a ROS image not working on Ubuntu 18.04 - Melodic

Add/edit the follwing to the CMakeLists.txt: find_package(OpenCV REQUIRED) include_directories( ${OpenCV_INCLUDE_DIR

2021-07-01 01:09:43 -0500 answered a question conversion of rosbag file format to rosbag2 file format.

You can use rosbags

2021-06-27 21:40:49 -0500 answered a question Passing an array of arrays of doubles from a yaml config file

No it's not possible to pass a vector 2D directly as a ros2 parameter. You have to define the parameter as a string: se

2021-06-23 04:03:11 -0500 edited question smac planner - Transform data too old when converting from map to odom

smac planner - Transform data too old when converting from map to odom I built the nav2 main branch - slam_toolbox ros2

2021-06-23 04:01:33 -0500 edited question smac planner - Transform data too old when converting from map to odom

smac planner - Transform data too old when converting from map to odom I built the nav2 main branch - slam_toolbox ros2

2021-06-23 04:00:45 -0500 edited question smac planner - Transform data too old when converting from map to odom

smac planner - Transform data too old when converting from map to odom I built the nav2 main branch - slam_toolbox ros2

2021-06-23 04:00:00 -0500 asked a question smac planner - Transform data too old when converting from map to odom

smac planner - Transform data too old when converting from map to odom I built the nav2 main branch - slam_toolbox ros2

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2020-12-09 03:28:05 -0500 edited question message_filters doesn't call the callback function

message_filters doesn't call the callback function I gonna synchronize an image by its camera_info. The code is attached

2020-12-09 03:25:25 -0500 edited question message_filters doesn't call the callback function

message_filters doesn't call the callback function I gonna synchronize an image by its camera_info. The code is attached

2020-12-09 03:14:27 -0500 edited question message_filters doesn't call the callback function

message_filters doesn't call the callback function I gonna synchronize an image by its camera_info. The code is attached

2020-12-09 03:13:57 -0500 edited question message_filters doesn't call the callback function

need help by message_filters I gonna synchronize an image by its camera_info. The code is attached, after finishing con

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2020-12-09 03:12:52 -0500 asked a question message_filters doesn't call the callback function

need help by message_filters I gonna synchronize an image by its camera_info. The code is attached, after finishing con

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2020-07-31 23:59:56 -0500 commented question In Ros2 Dashing ,why the turtlebot3 auto navigation have error ?

Can't see the image. Please edit the topic by copying console output.

2020-07-11 17:29:43 -0500 asked a question Need advise on executers and clbkGroups

Need advise on executers and clbkGroups There exist two simple nodes, one as a server and the other as a client. The ser

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2016-09-12 10:20:48 -0500 answered a question Intel RealSense R200 Camera Calibration

hi

when I will calibrate IR camera by this command : rosrun camera_calibration cameracalibrator.py image:=/camera/ir/image_raw camera:=/camera/ir --size 8x6 --square 0.345 --no-service-check

below error occurs:

Exception in thread Thread-5: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner self.run() File "/opt/ros/indigo/lib/camera_calibration/cameracalibrator.py", line 93, in run self.function(self.queue[0]) File "/opt/ros/indigo/lib/camera_calibration/cameracalibrator.py", line 167, in handle_monocular drawable = self.c.handle_msg(msg) File "/opt/ros/indigo/lib/python2.7/dist-packages/camera_calibration/calibrator.py", line 719, in handle_msg gray = self.mkgray(msg) File "/opt/ros/indigo/lib/python2.7/dist-packages/camera_calibration/calibrator.py", line 256, in mkgray return self.br.imgmsg_to_cv2(msg, "mono8") File "/opt/ros/indigo/lib/python2.7/dist-packages/cv_bridge/core.py", line 182, in imgmsg_to_cv2 raise CvBridgeError(e) CvBridgeError: [8UC1] is not a color format. but [mono8] is. The conversion does not make sense

How I should calibrate IR camera?

2016-03-15 11:10:56 -0500 commented answer the 3d map is not very good

what 3d map is good bye Xtion?

2016-03-15 11:05:32 -0500 asked a question 3D SLAM for quadrator with Xtion or kinect

what is the best 3D SLAM for quadrator? I had test lsd slam and rtabmap slam but these aren't suitable for me.do you have any suggestion?