I was thinking the same thing for the calibration. Not sure what material to use though. Another idea is to laser-cut a checkerboard with square holes to get depth discontinuity. It might require some modification to the detection algorithm in the calibration toolkit. Ivan On Saturday, November 13, 2010, Stefan Kohlbrecher wrote: > I see, will try that later. > Any ideas about how to get a good calibration? The best option coming > to my mind would be to find some material that swallows IR and make a > checkerboard pattern out of that that shows up in the depth image as > well as the normal camera image. Haven't found a material reliably > doing that yet though. > > 2010/11/13 Ivan Dryanovski : >> Thanks Stefan >> >> I wrote an rviz patch for the coloring that adds a new color mode (Height map): >> >> https://code.ros.org/trac/ros-pkg/ticket/4278 >> >> The patch actually allows coloring by "z" value. We tweaked it for the >> Kinect video to color by "y". You can change which axis you want to >> color by if you edit these lines in the patch: >> >> 473         min_height_current = std::min(min_height_current, pos.y); >> 474         max_height_current = std::max(max_height_current, pos.y); >> 475 >> 476         heights.push_back(pos.y); >> >> Change the pos.y to pos.x or pos.z for different effects >> >> Ivan Dryanovski >> >> >> On Sat, Nov 13, 2010 at 11:41 AM, Stefan Kohlbrecher >> wrote: >>> Very nice, especially the first basic depth calibration. >>> How do I get the color coding for the point cloud that is visible in >>> the video? I can only select "flat color" in my RVIZ. >>> >>> 2010/11/13 Bill Morris : >>>> On Fri, 2010-11-12 at 19:43 -0800, RobotNV wrote: >>>>> You guys are so fast! I don't see the bag file in the link in 5. Example on the wiki though. >>>> >>>> I'm working on getting it uploaded. Should be up in the next few hours, >>>> my connection is slow here. >>>> >>>> _______________________________________________ >>>> ros-users mailing list >>>> ros-users@code.ros.org >>>> https://code.ros.org/mailman/listinfo/ros-users >>>> >>> _______________________________________________ >>> ros-users mailing list >>> ros-users@code.ros.org >>> https://code.ros.org/mailman/listinfo/ros-users >>> >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users >> > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users >