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2022-05-01 12:56:40 -0500 received badge ● Famous Question (source)
2022-04-05 20:32:55 -0500 commented question The topic I subscribed to or published does not exist.

Can you check "rosnode info pub_odom" for the first one?

2022-04-05 20:32:36 -0500 answered a question The topic I subscribed to or published does not exist.

Can you check "rosnode info pub_odom" for the first one.

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2021-09-24 16:00:52 -0500 asked a question How to package ROS software such that the source code cannot be accessed?

How to package ROS software such that the source code cannot be accessed? Hi! I need to send one of the prototype robo
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2021-05-20 11:37:37 -0500 asked a question How to update ROS Wiki Documentation?

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2020-05-18 09:40:05 -0500 asked a question Delay a ROS Topic by a certain amount of time

Delay a ROS Topic by a certain amount of time Actual problem: I have a controller node that subscribes to 2 topics and

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2019-08-19 15:01:30 -0500 marked best answer RGB-D Handheld Mapping with RealSense R200

I was following the RGB-D Handheld Mapping tutorial . First I ran the following command

$ roslaunch realsense_camera r200_nodelet_default.launch

While the realsense_camera node is running, in a new tab I ran 

$ roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/camera/depth_registered/sw_registered/image_rect_raw

The RTABMAP GUI is launched as expected but there is no image.

In the terminal that I launched the RTABMAP GUI, I am receiving the following warning.

[ WARN] [1532462055.394145038]: /rtabmap/rgbd_odometry: Did not receive data since 5 seconds! Make sure the input topics are published ("$ rostopic hz my_topic") and the timestamps in their header are set. 
/rtabmap/rgbd_odometry subscribed to (approx sync):
   /camera/rgb/image_rect_color,
   /camera/depth/image_raw,
   /camera/rgb/camera_info

Same thing happens when I run

$ roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/camera/depth/points/image_raw

Can you help me solve this issue? Thank you.

I am running Ros Kinetic on Ubuntu 16.04 64-bit machine.

Edit

The published topics are:

$ rostopic list
/camera/color/camera_info
/camera/color/image_raw
/camera/color/image_raw/compressed
/camera/color/image_raw/compressed/parameter_descriptions
/camera/color/image_raw/compressed/parameter_updates
/camera/color/image_raw/compressedDepth
/camera/color/image_raw/compressedDepth/parameter_descriptions
/camera/color/image_raw/compressedDepth/parameter_updates
/camera/color/image_raw/theora
/camera/color/image_raw/theora/parameter_descriptions
/camera/color/image_raw/theora/parameter_updates
/camera/depth/camera_info
/camera/depth/image_raw
/camera/depth/image_raw/compressed
/camera/depth/image_raw/compressed/parameter_descriptions
/camera/depth/image_raw/compressed/parameter_updates
/camera/depth/image_raw/compressedDepth
/camera/depth/image_raw/compressedDepth/parameter_descriptions
/camera/depth/image_raw/compressedDepth/parameter_updates
/camera/depth/image_raw/theora
/camera/depth/image_raw/theora/parameter_descriptions
/camera/depth/image_raw/theora/parameter_updates
/camera/depth/points
/camera/driver/parameter_descriptions
/camera/driver/parameter_updates
/camera/ir/camera_info
/camera/ir/image_raw
/camera/ir/image_raw/compressed
/camera/ir/image_raw/compressed/parameter_descriptions
/camera/ir/image_raw/compressed/parameter_updates
/camera/ir/image_raw/compressedDepth
/camera/ir/image_raw/compressedDepth/parameter_descriptions
/camera/ir/image_raw/compressedDepth/parameter_updates
/camera/ir/image_raw/theora
/camera/ir/image_raw/theora/parameter_descriptions
/camera/ir/image_raw/theora/parameter_updates
/camera/ir2/camera_info
/camera/ir2/image_raw
/camera/ir2/image_raw/compressed
/camera/ir2/image_raw/compressed/parameter_descriptions
/camera/ir2/image_raw/compressed/parameter_updates
/camera/ir2/image_raw/compressedDepth
/camera/ir2/image_raw/compressedDepth/parameter_descriptions
/camera/ir2/image_raw/compressedDepth/parameter_updates
/camera/ir2/image_raw/theora
/camera/ir2/image_raw/theora/parameter_descriptions
/camera/ir2/image_raw/theora/parameter_updates
/camera/nodelet_manager/bond
/rosout
/rosout_agg
/tf
/tf_static

I think the RTABMAP GUI is not looking for the right topic; there is nothing matching "/camera/depth_registered/sw_registered/image_rect_raw". What should I change the

$ roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/camera/depth_registered/sw_registered/image_rect_raw

command with?

Edit 2

As Martin suggested, I tried running 

$ roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/camera/depth/image_raw

Again, there's no image in the GUI. I also ran "rostopic hz /camera/depth/image_raw" and got:

$ rostopic hz /camera/depth/image_raw
subscribed to [/camera/depth/image_raw]
average rate: 60.027
    min: 0.016s max: 0.017s std dev: 0.00024s window: 57
average rate: 60.022
    min: 0.016s max: 0.017s std dev: 0.00025s window: 117
average rate: 60.018
    min: 0.016s max: 0.017s std dev: 0.00025s window: 177
average rate: 60 ...
(more)
2019-08-14 10:33:33 -0500 asked a question Should the Camera Calibration Resolution be equal to the operation resolution after the calibration?

Should the Camera Calibration Resolution be equal to the operation resolution after the calibration? I have recently pur
2019-08-09 17:03:17 -0500 marked best answer Which line extraction algorithms are used in gmapping and cartographer packages?

I was wondering which line extraction algorithms are used in gmapping and cartographer packages?

I couldn't find this information on the ROS wiki websites.

Some of the possible options are

  • Split-and-merge
  • Hough-transform
  • RANSAC
  • Incremental
  • Line-regression
  • Expectation maximization

Thanks!
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2019-06-16 20:20:57 -0500 commented question Error reading version line when I play a .bag file.

@Geoff You are spot on. Thanks! I was in a rush and I didn't get a response to my other post for more than 24h that's wh
2019-06-16 13:23:39 -0500 asked a question Error reading version line when I play a .bag file.

Error reading version line when I play a .bag file. I am trying to get SVO working with stereo setup and imu information
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2019-02-27 09:31:41 -0500 edited question make: *** [px4_sitl] Error 1

make: *** [px4_sitl] Error 1 I downloaded and built PX4 source code. Then I ran the jMAVSim simulator with make px4_sit
2019-02-26 16:00:22 -0500 edited question make: *** [px4_sitl] Error 1

make: *** [px4_sitl] Error 1 I downloaded and built PX4 source code. Then I ran the jMAVSim simulator with make px4_sit
2019-02-26 15:46:15 -0500 edited question make: *** [px4_sitl] Error 1

make: *** [px4_sitl] Error 1 I downloaded and built PX4 source code. Then I ran the jMAVSim simulator with make px4_sit
2019-02-26 15:45:48 -0500 edited question make: *** [px4_sitl] Error 1

make: *** [px4_sitl] Error 1 I downloaded and built PX4 source code. Then I ran the jMAVSim simulator with make px4_sit
2019-02-26 15:45:02 -0500 asked a question make: *** [px4_sitl] Error 1

make: *** [px4_sitl] Error 1 I downloaded and built PX4 source code. Then I ran the jMAVSim simulator with make px4_sit
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2018-08-07 11:44:27 -0500 commented question Remote Mapping with Kinect and Turtlebot3 Waffle

@matlabbe I didn't have sudo access to the Turtlebot in the lab, I contacted the lab manager and we installed rtabmap_ro
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2018-07-27 13:27:54 -0500 asked a question Remote Mapping with Kinect and Turtlebot3 Waffle

Remote Mapping with Kinect and Turtlebot3 Waffle Hello, I was following the rtabmap_ros Remote Mapping tutorial. I st
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2018-07-27 01:33:03 -0500 asked a question Which line extraction algorithms are used in gmapping and cartographer packages?

Which line extraction algorithms are used in gmapping and cartographer packages? I was wondering which line extraction a
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2018-07-24 15:34:20 -0500 commented question RGB-D Handheld Mapping with RealSense R200

@matlabbe This one worked. Thank you very much!

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2018-07-24 15:11:49 -0500 commented answer RGB-D Handheld Mapping with RealSense R200

Hello @MartinGünther please check out my Edit 2, thank you.

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