Re: [ros-users] Detecting Glass Walls

Don't forget that reflections will be seen by stereo as behind the glass...kk

On Fri, Apr 2, 2010 at 9:44 AM, Radu Bogdan Rusu <rusu@willowgarage.com> wrote:
> 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?
>
> Cheers,
> Radu.
>
> 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@gmail.com
>> eric.perko@case.edu
>> mobilerobots.case.edu
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> --
> | Radu Bogdan Rusu | http://rbrusu.com/
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