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Load intrinsic parameters from file [ueye]

asked 2017-08-11 10:03:20 -0500

matt_do gravatar image

Hi, I got an issue with loading parameters from a file while starting the ueye-node. First I configured the parameters from the commandline and than dumped it in a file. I used the following command:

rosrun dynamic_reconfigure dynparam dump /camera <file-name>

I can change this file in an editor and load it back via the load command.

So, now my issue. Is there a possibility to store the file in a specific folder so that the node loads these parameters at startup?

When the ueye-node starts, there is a warning saying:

Failed to load intrinsics for camera from file

However, I do not know where and in what format the file must be saved. Does somebody has any idea?

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answered 2017-08-11 12:25:53 -0500

kmhallen gravatar image

Parameters (dynamic or not) can be loaded from a file in roslaunch: http://wiki.ros.org/roslaunch/XML/ros...

Camera calibration and intrinsics are separate. The intrinsics are stored in a configurable folder. This is purely used to dewarp the image using nodes like image_proc and others. This file is auto-generated with a calibration procedure involving a checkerboard.

See http://wiki.ros.org/ueye#Camera_Calib...

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Thank you for your prompt and comprehensible reply. Now, the difference between parameters and intrinsics is crystal clear.

matt_do gravatar imagematt_do ( 2017-08-11 13:44:50 -0500 )edit

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Asked: 2017-08-11 10:03:20 -0500

Seen: 228 times

Last updated: Aug 11 '17