[ros-users] Detecting Glass Walls

Radu Bogdan Rusu rusu at willowgarage.com
Fri Apr 2 16:44:12 UTC 2010

Hi Eric,

Ouch, glass walls. No, unfortunately there isn't a lot that can be done with LIDAR sensors there. You can try to use 
reflections to generate stereo data and hope for the best, but that's not going to work everytime. You are right, 
employing sonars might help. Did you check the literature to see what other people are using to deal with glass?


Eric Perko wrote:
> Hey all,
> After looking at the wiki for ROS sonar packages, I started wondering.
> Currently, the robots I work on have issues detecting glass walls, as
> their primary range sensor is a SICK LMS291, which pings right through
> the glass (obviously). To solve this for a robotic tour guide
> application, we are looking into sonars.
> So my question is, what are some approaches that you use to detect
> things such as glass walls that both LIDARs and cameras might have
> trouble with? Can the PR2 see glass walls and, if so, how?
> Thanks
> Eric Perko
> wisesage5001 at gmail.com
> eric.perko at case.edu
> mobilerobots.case.edu
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| Radu Bogdan Rusu | http://rbrusu.com/

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