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How Hector Autonomous Rescue Robot Detect QRCodes?

asked 2013-06-10 06:43:11 -0500

Messi gravatar image


I am using Hector_slam package for mapping and marking objects and Now I need to add QRcodes Detection to it.

anyone knows How can i do this job with darmstadt Ros packages?

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answered 2013-06-10 11:30:30 -0500

Currently you can't, as we have not released our packages used for QR code detection yet. The underlying semantic worldmodel is released however, see the hector_object_tracker package. More detailed documentation is in the works, but will not be available till after RoboCup due to time constraints.

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The hector_qrcode_detection package which we also use for RoboCup is available in the hector_vision stack now: .

Johannes Meyer gravatar image Johannes Meyer  ( 2013-09-14 12:22:39 -0500 )edit

answered 2013-06-10 12:00:59 -0500

Messi gravatar image

updated 2013-06-10 12:02:23 -0500

Thank you stefan,

after detecting Qrcodes i need to mark objects in map by hector_object_tracker. i have added object_tracker in my launch file, and i am using your rqt_rescue plugin in this address: irrw2012/source/browse/trunk/rqt_rescue_control_plugin/lib/

but when i click on "Add victim in front of robot" button, in running launch file terminal, it prints this line:

[ INFO] [1370900109.430975931]: add_object service called for new victim object in frame base_link

and in rqt termianl it prints:

service call failed

and after saving maps, no mark added to the map. what should i do in this situation?

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@stefan Can you share the documentation regarding the hector_qrcode_detection.I am not able to do the remap from the /image or /image_raw. No data is being published in that node and also there is no topic running in it.Can u help me for sorting this out. Thanks in advance.

rahul puram gravatar image rahul puram  ( 2020-01-21 08:43:40 -0500 )edit

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Asked: 2013-06-10 06:43:11 -0500

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Last updated: Jun 10 '13