Yeah, plus they heavily depend on how the light reflects, angles, etc. Reflections are evil ;) I haven't seen too much work on actually getting stereo from that. Is there any work on artificially generating reflections by manipulating light (a PR2 with a flashlight moving around would be cool :) )? Cheers, Radu. Kurt Konolige wrote: > 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 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 >>> _______________________________________________ >>> ros-users mailing list >>> ros-users@code.ros.org >>> https://code.ros.org/mailman/listinfo/ros-users >> -- >> | Radu Bogdan Rusu | http://rbrusu.com/ >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users >> -- | Radu Bogdan Rusu | http://rbrusu.com/