On Wednesday 11 February 2009, Sven Wesley wrote: >There's no problem with getting very good precision with a photogrammetry. >My workshop neighbour has written code algoritms for photogrammetry and they >make 1/10 of mm precision - with a videocamera on a 50 ft sail boat hull. >They actually came to the conclusion to make the keel fin 5 mm wider to gain >upwind speed... >The David scanner is amazingly good, all because of the dot matrix. It's not >so much about the camera as the software.
Yeah, maybe so for gently convex surfaces such as that hull. But unless they have repealed the laws of physics, the camera still can't see the fact that the object is closer, throwing a portion of the image that could be seen if the camera was scanning along with the laser, into the shadows behind the object. Any detail on the sides of the object will be missed. The scaling is software, but you can't scale what you can't see. >BTW, this is pretty EMC-off topic by now. :) > >2009/2/11 Rob Jansen <[email protected]> > >> I doubt the exact precision of this scanner, I am going for the >> NextEngine scanner with RapidWorks to convert scans into CAD models for >> SolidWorks. >> I just sent them a few photo's of a product I need to scan to see if >> they think NextEngine can do this. >> >> Regards, > >---------------------------------------------------------------------------- >-- Create and Deploy Rich Internet Apps outside the browser with > Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing > skills and code to build responsive, highly engaging applications that > combine the power of local resources and data with the reach of the web. > Download the Adobe AIR SDK and Ajax docs to start building applications > today-http://p.sf.net/sfu/adobe-com > _______________________________________________ >Emc-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Wishing without work is like fishing without bait. -- Frank Tyger ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
