Re: [osg-users] Kinect
Hi Chris, I think your plot is misrepresenting the appropriate feature space for this analysis. You are missing estimated component angles of each ray extending from the image plane to the surface target + angle of incidence. I would simplify the scene substantially; why not take a flat surface (a piece of foam board with know dimensions) and place it in an open space at a few known distances from the sensor? You can then also rotate the image plane about a couple estimated angles. Then plot errors perhaps as a function of distance vs. sqrt( angle_x^2 + angle_y^2), as a start. I would recommend that you take a look at a paper: Anderson, D., Herman, H., Kelly A., Experimental Characterization of Commercial Flash Ladar Devices, International Conference On Sensing, 2005. Yes, it is different technology but the error analysis used there I think would be relevant. cheers, t On Fri, Mar 4, 2011 at 12:03 PM, Chris 'Xenon' Hanson xe...@alphapixel.comwrote: I recently published some info I've learned about Kinect on my web page. http://xenon.arcticus.com/kinect-z-buffer-noise-and-audio-beam-steering-precision I'd like to talk to other OSG people who are using, or plan to use Kinect, and see what you're up to. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. Contracting. There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Forked osgIntrospection to cppintrospection
Hello dear OSG users and developers, We needed osgIntrospection for the SPIN framework, so I forked it, packaged it with the GNU Autotools, since I know them and not CMake. I renamed it to cppintrospection and made 2 releases in an unstable branch. (Links are at the end of this email) Wang Rui and Robert Osfield are you willing to help us in maintaining the cppintrospection library and the genwrapper utility? Of course, this fork in a gentle fork, as I am totally willing to cooperate with the OSG developers, and to keep the discussion about cppintrospection on the osg-users mailing list. Actually, I don't know well how cppintrospection works yet, as I mostly worked on the packaging. It's Mike Wozniewski who knows a lot more than me about cppintrospection. I just made sure it still works for SPIN after the mass renaming and changes in packaging I have done. What do you guys think of this? Is cppintrospection a good name for the library, the namespace and the prefix for headers? We should update the documentation of genwrapper. Anyone willing to help? And then, we might be able to make a 3.0 stable branch within two or three weeks. You can get the 2.11.4 tag from there: (latest) https://github.com/sat-metalab/cppintrospection I packaged it for Ubuntu Maverick. https://launchpad.net/~sat-metalab/+archive/metalab The SPIN Framework: http://spinframework.org/ Thanks, -- Alexandre Quessy http://alexandre.quessy.net/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Forked osgIntrospection to cppintrospection
Hi Alexandre, It's really good to know that somebody is interested in the introspection framework. During the last few months I managed to merge genwrapper into the osgIntrospection project and made an semi-auto wrapper-generating utility. But I'm not able to make all kinds of classes work properly at present, and couldn't update the project along with the latest OSG version without troubles. I'd like to go deep into this project after my client work finished. And I'm willing to cooperate with any body with interests. I just wonder if you could attend the osgIntrospection project and submit your changes directly to its SVN trunk (as below), instead of keeping another project with a maybe confusing name? As I'm still struggling against genwrapper's possible bugs, your knowledge will really help at this time. I'll try to ask for a read/write account for you if possible. Checking out the osgIntrospection project: svn co http://www.openscenegraph.org/svn/osg/osgIntrospection/trunk Cheers, Wang Rui 2011/3/13, Alexandre Quessy alexan...@quessy.net: Hello dear OSG users and developers, We needed osgIntrospection for the SPIN framework, so I forked it, packaged it with the GNU Autotools, since I know them and not CMake. I renamed it to cppintrospection and made 2 releases in an unstable branch. (Links are at the end of this email) Wang Rui and Robert Osfield are you willing to help us in maintaining the cppintrospection library and the genwrapper utility? Of course, this fork in a gentle fork, as I am totally willing to cooperate with the OSG developers, and to keep the discussion about cppintrospection on the osg-users mailing list. Actually, I don't know well how cppintrospection works yet, as I mostly worked on the packaging. It's Mike Wozniewski who knows a lot more than me about cppintrospection. I just made sure it still works for SPIN after the mass renaming and changes in packaging I have done. What do you guys think of this? Is cppintrospection a good name for the library, the namespace and the prefix for headers? We should update the documentation of genwrapper. Anyone willing to help? And then, we might be able to make a 3.0 stable branch within two or three weeks. You can get the 2.11.4 tag from there: (latest) https://github.com/sat-metalab/cppintrospection I packaged it for Ubuntu Maverick. https://launchpad.net/~sat-metalab/+archive/metalab The SPIN Framework: http://spinframework.org/ Thanks, -- Alexandre Quessy http://alexandre.quessy.net/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Why Compiled OSG is slower than pre-compiled version?
It's so disappointing to find that nothing gets better. I compiled it with rpmbuil --recompile OpenSceneGraph-2.8.3-3.fc14.src.rpm The results remains the same. Slow and sometimes segmentation fault. I don't know what happened and I'm wondering if I need to switch to another OSG version. On Mon, Feb 21, 2011 at 4:21 PM, Alberto Luaces alua...@udc.es wrote: GeeKer Wang writes: Yes, it's CXXFLAGS. I just misspelled it and did nothing wrong. I configured it in ccmake and found those flags in gcc comandline. Nothing changed anyway. I don't know what's the real reason for that. The last resort is then to compile the Fedora package yourself with the rpmbuild command and check if you are able to get that way the same binaries they are shipping. That will answer if it is the system configuration or the build method the one that it's misbehaving. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Bob ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
