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Calibration pattern chessboard [closed]

asked 2015-10-19 05:23:56 -0500

Alvaro Salcedo gravatar image

Hi Ros users:

I am doing a calibration camera and I have to have a calibration pattern in Gazebo. I like to know if there is a .stl calibration pattern chessboard file on the internet to do that. And if there is not, how can I do it?

Thanks a lot.

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Closed for the following reason the question is answered, right answer was accepted by Alvaro Salcedo
close date 2015-10-22 04:14:57.941406


Is this a duplicate of textures in a stl file?

gvdhoorn gravatar image gvdhoorn  ( 2015-10-20 13:17:12 -0500 )edit

both are fixed. Thanks

Alvaro Salcedo gravatar image Alvaro Salcedo  ( 2015-10-22 04:14:32 -0500 )edit

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answered 2015-10-20 13:09:35 -0500

lucasw gravatar image

updated 2015-10-20 13:13:29 -0500

You can render a checker/chessboard texture in gimp, export it as a png.

image description

Or search for an existing one

Then create a plate model in Blender and apply the saved texture to a face using a tutorial like

image description

Export the textured cube model as an obj, load it into meshlab, then export it as a dae (dae works better than stl in Gazebo).

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Thanks a lor. Problem fixed.

Alvaro Salcedo gravatar image Alvaro Salcedo  ( 2015-10-22 04:14:01 -0500 )edit

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Asked: 2015-10-19 05:23:56 -0500

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Last updated: Oct 20 '15