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how to use CameraInfoManager for stereo camera?

asked 2011-05-12 00:13:21 -0500

prbhagwat gravatar image

updated 2014-01-28 17:09:40 -0500

ngrennan gravatar image

Hi, Is it possible to use single CameraInfoManager object to get the calibration data for both left and right stereo camera? It looks from CameraInfoManager that we can get camera calibration parameter for only one camera and not both. Is there any other message for stereo camera which can get both left and right calibration parameters?

Warm Regards,


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Could you reword your headline/title into a question? It makes it easier for people to find questions and answers.
Asomerville gravatar image Asomerville  ( 2011-05-12 05:55:46 -0500 )edit

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answered 2011-05-12 04:48:02 -0500

mkoval gravatar image

Even when using a stereo camera, there is no such thing as a "stereo camera info" message. Instead, the left and right cameras publish each publish their respective camera info. If you are writing a stereo camera driver node, then you should use a separate CameraInfoManager for each half. If you want to do your own stereo processing, then you should use the TimeSynchronizer class in the message_filters package to synchronize the cameras' image and camera_info topics.

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Asked: 2011-05-12 00:13:21 -0500

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Last updated: May 12 '11