Comments on: Knight Helmet Scanning http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/ Democratizing Manufacturing Wed, 08 Feb 2012 22:38:41 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Ian Johnson http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/#comment-953 Ian Johnson Tue, 17 Nov 2009 20:27:50 +0000 http://www.makerbot.com/blog/?p=764#comment-953 Bob, There is a program that does that, called 3DSOM (www.3dsom.com) which creates objects from silhouettes. You place the object on a stand above a round calibration pattern on a turntable. It does a really good job depending on the quality of the outline you create, which depends a lot on lighting and background. Photoshop Elements has some great selection tools to help with that. It creates a texture map from the photos and makes a nice looking model. However it doesn't work well with objects with a lot of concave features that don't show up in an outline, such as a dish. What kind of mount is holding the web cam? It looks very versatile. Bob,

There is a program that does that, called 3DSOM (www.3dsom.com) which creates objects from silhouettes. You place the object on a stand above a round calibration pattern on a turntable. It does a really good job depending on the quality of the outline you create, which depends a lot on lighting and background. Photoshop Elements has some great selection tools to help with that. It creates a texture map from the photos and makes a nice looking model. However it doesn’t work well with objects with a lot of concave features that don’t show up in an outline, such as a dish.

What kind of mount is holding the web cam? It looks very versatile.

]]> By: TroyGeek http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/#comment-951 TroyGeek Mon, 16 Nov 2009 21:54:36 +0000 http://www.makerbot.com/blog/?p=764#comment-951 There are other opensource projects for linux called scan3d, scandraid and one called nuages. I have downloaded them but have not had the time to really take a look at them. I think they are hosted on sourceforge. There are other opensource projects for linux called scan3d, scandraid and one called nuages. I have downloaded them but have not had the time to really take a look at them. I think they are hosted on sourceforge.

]]> By: Eric Albert http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/#comment-949 Eric Albert Mon, 16 Nov 2009 17:11:34 +0000 http://www.makerbot.com/blog/?p=764#comment-949 A truly open source, complete system seems to be in order -- with decent resolution would be a nice complimentary package to the Cupcake CNC. I also find this approach interesing -- http://milkscanner.moviesandbox.net/ and it is open source with Mac and Windows versions available. A truly open source, complete system seems to be in order — with decent resolution would be a nice complimentary package to the Cupcake CNC. I also find this approach interesing — http://milkscanner.moviesandbox.net/ and it is open source with Mac and Windows versions available.

]]> By: TroyGeek http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/#comment-946 TroyGeek Mon, 16 Nov 2009 01:05:32 +0000 http://www.makerbot.com/blog/?p=764#comment-946 I too have been put out/ put off by the fact that David scanner only works in windows so I embarked on a quest to find a solution that works in mac or linux. I found a very promising solution for linux called voodoo. it is a free program and works with blender. I have not tried it out yet, I will as soon as my lego rotating table is complete. here is a link that you may find very interesting. http://www.youtube.com/watch?v=vbvex7maHL8 hope to hear how this works out for people. TroyGeek I too have been put out/ put off by the fact that David scanner only works in windows so I embarked on a quest to find a solution that works in mac or linux. I found a very promising solution for linux called voodoo. it is a free program and works with blender. I have not tried it out yet, I will as soon as my lego rotating table is complete. here is a link that you may find very interesting. http://www.youtube.com/watch?v=vbvex7maHL8

hope to hear how this works out for people.

TroyGeek

]]> By: Bob Mottram http://www.makerbot.com/blog/2009/11/15/knight-helmet-scanning/#comment-945 Bob Mottram Sun, 15 Nov 2009 18:28:38 +0000 http://www.makerbot.com/blog/?p=764#comment-945 It's an interesting problem. Another approach would be to have a rotating table - maybe an old record turntable - which you put the model onto. You could then manually rotate the table with the camera taking pictures from one side. Some image processing could then be used to extract the silhouette against the background and stitch those together to produce a model. The camera would need to be calibrated, but there are existing pieces of open source software which can do that. It’s an interesting problem. Another approach would be to have a rotating table – maybe an old record turntable – which you put the model onto. You could then manually rotate the table with the camera taking pictures from one side. Some image processing could then be used to extract the silhouette against the background and stitch those together to produce a model. The camera would need to be calibrated, but there are existing pieces of open source software which can do that.

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