<p>Hi, I forward it to the non-devel ML</p>
<p>sent from mobile</p>
<p>---------- Forwarded message ----------<br>From: "Ricardo Gaidão" <<a href="mailto:caioviator@yahoo.com.br">caioviator@yahoo.com.br</a>><br>Date: Jan 8, 2011 9:22 PM<br>Subject: SFM software - Point cloud alignment<br>
To: <<a href="mailto:archeos-dev@lists.linux.it">archeos-dev@lists.linux.it</a>><br><br type="attribution">SFM software like Bundler, PMVS2, CMVS enable to create accurate colored point clouds from digital photos. <br>
<br>Meshlab can be used to rescale those point clouds and create colored meshes using point color information.<br><br>Unfortunately remains the problem of point cloud alignment. <br><br>Nathan M. Craig and Mark Willis developed methods to assign real word coordinates to this point clouds.<br>
<br>The process is something complex and demands many steps.<br><br>For majority of archaeologists an automatic point and click solution would be better. <br><br>Maybe some kind of Meshlab plugin, that allow the user to individually select and edit some reference points in the model. Making possible to attribute them real world coordinates. <br>
<br>Other secondary problem is the lack of a solution to transform the photos used by SFM software into textures to map the models created from those point clouds. <br><br>Ricardo<br><br>References:<br><br>Structure from Motion Point Clouds to Real World Coordinates (Nathan M. Craig):<br>
<br><a href="http://www.personal.psu.edu/nmc15/blogs/anthspace/2010/02/structure-from-motion-point-clouds-to-real-world-coordinates.html">http://www.personal.psu.edu/nmc15/blogs/anthspace/2010/02/structure-from-motion-point-clouds-to-real-world-coordinates.html</a><br>
<br>How to create a Digital Elevation Model from Photosynth point clouds (M. Willis):<br><br><a href="http://palentier.blogspot.com/2010/12/how-to-create-digital-elevation-model.html">http://palentier.blogspot.com/2010/12/how-to-create-digital-elevation-model.html</a><br>
<br><br>********************************************************<br><br>Luca said (Sun Dec 5 10:48:23 CET 2010):<br><br>Hi all,<br>It looks like that the issue for ArcheOS 4 are no more so many (more or <br>less 10% in the roadmap). On the other hand all the release goals seems <br>
to be OK:<br><br>1 repository (OK)<br><br>2 deb packages of archaeological software (OK)<br><br>3 adding software of Computer Vision for SFM (Structure From Motion): <br>Bundler, PMVS2 (OK, and in the meantime we added also CMVS)<br>
<br>4 adding software for semi-automatic drawing of finds: stippler (OK)<br><br>I am thinking that maybe we could choose a date to release ArcheOS 4 <br>alpha. In this way we can concentrate on the final issue, release the <br>
distro and fix all the minor bug later (also looking the issue of the <br>user/tester).<br>E.g. new paclages can be added to the repository in a second time, new <br>artwork can be uploaded in the wiki with the instruction for the user <br>
(how to change the wallpaper, etc...).<br>Anyway, after a while we can release a beta with all the bugs fixed, <br>till the final release.<br><br>What do you think about it?<br><br><br><br> <br><br>--<br>Mailing list info: <a href="http://lists.linux.it/listinfo/archeos-dev">http://lists.linux.it/listinfo/archeos-dev</a><br>
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