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Potential data loss with stereo_image_proc

asked 2013-05-18 11:48:12 -0500

mortonjt gravatar image

updated 2014-01-28 17:16:34 -0500

ngrennan gravatar image


I have been messing around with the point clouds generated by stereo_image_proc for the bumblebee2 for a little bit now. I have just applied the toROSMsg command to convert my point clouds to opencv images and realized that there are many gapping holes in my images.

Is this a universal tendency for stereo_image_proc? Or is this an indication that I need to do much more parameter tuning via rqt_reconfigure?

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answered 2013-05-19 21:23:08 -0500

Yes, the artifacts you are seeing are related to how stereo block matching works. Parameter tuning will allow some optimization, but noise and gaps in stereo point clouds should be expected and will not go away completely in any but the most controlled scenarios.

The "Choosing good stereo parameters" tutorial provides some help on what the knobs are with regards to hopefully improving results.

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Asked: 2013-05-18 11:48:12 -0500

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Last updated: May 19 '13