jpsdesign Posted March 23, 2011 Report Share Posted March 23, 2011 Hi All, Does anyone know of any open source software similar to Image Modeler or Photo Modeler - I don't need to use application to build models, just to extract some dimensions from photographs. Even any techniques to do this without software would be useful - as I do know at least one dimension so could extrapolate from that perhaps... thanks, James Quote Link to comment Share on other sites More sharing options...
yhloon Posted March 23, 2011 Report Share Posted March 23, 2011 http://insight3d.sourceforge.net/ I never use this before, hope this is the one you are looking for.... Quote Link to comment Share on other sites More sharing options...
RichardJoly Posted March 23, 2011 Report Share Posted March 23, 2011 If you talk about flat 2D pictures with minimum or no perspective, stickyyard is an interesting product: http://www.stickyyard.com/ OpenSource suggestion: http://stereo.sourceforge.net/ May I also suggest the use of photoshop tools like vanishing point that gives you a great reference grid in perspective on top of your picture. When perspective has to be considered, the technique is called Photogrammetry. Metrology and Photogrammetry are the best keywords to get info on the subject. Here are some links of interest: http://www.photomodeler.com/ http://imagemaster3d.com/imagemaster.html http://usa.autodesk.com/adsk/servlet/pc/index?id=11390028&siteID=123112 http://www.iwitnessphoto.com/ http://visualsize.com/tutorial.php http://imagegraphicsvideo.com/InspectionWithVideo.html http://www.imodeller.com/en/ Quote Link to comment Share on other sites More sharing options...
jpsdesign Posted March 23, 2011 Author Report Share Posted March 23, 2011 Thanks guys, some pretty good suggestions here, although a lot are quite pricey. I am surprised there are not more shareware / cheap applications for this kind of thing - more the measurement (akin to the measuring tools in ImageModeler) than rebuilding and texturing or point cloud generation. In the end vanishing point and the measuring tool (in CS5 extended) and a bit of good old fashioned trigonometry got me close enough, so thanks for the vanishing point reminder Richard, James Quote Link to comment Share on other sites More sharing options...
KurtF Posted March 25, 2011 Report Share Posted March 25, 2011 After World War II there were some books available on how to read, or interpret, aerial recon photos. They listed standard sizes for roadways, door and window heights, other standard measurements. These, coupled with some tools, allowed a person to create fairly accurate maps. Now- I didn't see any of those reference books listed when I tried to search. I guess with newer, modern techniques of surveying, along with the software, those old techniques outdated. Quote Link to comment Share on other sites More sharing options...
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