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ar_sys camera calibration problem ...

asked 2016-04-30 17:35:56 -0500

Nikola_Tesla gravatar image

hi. i want to run ar_sys package . But i dont know that how i will define my laptop's camera to ROS . And i dont know how can i pass the proper launcher parameters (see launch files for details) to meet my camera device, calibration URI, pointing to the correct board configuration.

May u explain that with picture or video or explain it here ? Thanks.

when i try to run roslaunch ar_sys single_board.launch

There is this Error :

terminate called after throwing an instance of 'std::runtime_error'
  what():  pixel format unavailable
[ INFO] [1461717403.333087263]: ArSys node started with marker size of 0.050000 m and board configuration: /opt/ros/indigo/share/ar_sys/data/single/board.yml
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is there anybody ? may you help me about ar_sys please_ _?

Nikola_Tesla gravatar image Nikola_Tesla  ( 2016-05-01 04:05:15 -0500 )edit

1 Answer

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answered 2016-05-04 01:25:31 -0500

ahendrix gravatar image

You've been asking this question a lot:

The reason that you probably haven't gotten any good answers is because the questions are not good. (Your English is fine.) Please see the guidelines for asking a question

running the usb_cam node should provide ROS topics with images from your camera ("define it to ROS")

From your previous post it looks like you tried to run the usb_cam node. Please try this again, but this time include:

  • The full link to the tutorial or previous questions that you're following (linking to is not useful)
  • The exact commands for all of the nodes that you're running
  • The FULL output form the usb_cam node
  • Your observations, and what you expect to happen.
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Asked: 2016-04-30 17:35:56 -0500

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Last updated: May 04 '16