DIY and Entry-Level 3D-Scanner Forum

Thanks. I shot a set of ringflash photos of the same subject... will post my research steps soon. Image quality first!

Light tent is what it sounds to be right? https://www.google.it/search?q=light+te ... cvFPaukgEg


Very good for little objects... I should study a big version for my pictures of a table... something like this http://www.exacme.com/index.php?main_pa ... age&pID=25

movable...

The first example of a small light tent looks like it would be very difficult to use. As you rotate the position of your camera, you would have to rotate the opening of the tent as well without moving the object. Then I don't know how you would handle the shots from above. Going to have to build myself a dedicated scanning studio one of these days.

Very interesting! I post here three details: geometry, mesh and textured images. I look at the geometry (generated at medium level) and I wonder: would high and ultra high be much better and ultra much better? by the way, this is a ringflash test. Great depth of field (it was f11) makes things much better, no defocusing. the problem are the shadows wich mix together on the textures. Plus, you have appropriate amount of light on the foreground wich fades out on the background. Basic concepts, I know

Hi scantastic,



You have to move the object, not the camera -turntable solution, masking needed.

Regards,

Karsten

That makes sense.

Hi,

I can honestly say, from a lot of Trial and error, that you can either:

move one camera around an object (big objects, buildings,...)



Using a Multicamerasystem (for Portrait Shooting)




or use a turntable for smaller objects....

all methods are working with Photoscan, BUT the photo Quality (focused area, low ISO to avoid blur effects) has the biggest impact. Photoscan also loves "Stereo Pictures" (2 photos from a slightly different position) and textured objects (no tiny chess pattern, but any kind of structure.. a plane surface is no good at all)...

I will carry on with my Multicamerasystem (24 Canon 600D so far...) but there is still so much to learn and optimize...

Good luck... bye Andreas

Your system seems to deliver very high detailed scans. How many polygons has the scan of the head in example 2. I am very impressed

_________________
Bernhard
www.virtumake.com

Hi,

as there seems to be a huge interest in scanning people, here is a special paper by Agisoft for this:

http://downloads.agisoft.ru/pdf/Image%20Capture%20Tips%20-%20Full%20Body%20Capture.pdf

Regards,

Karsten

And a "low cost" variant for scanning people with 3 cameras, 3 flashes and a turntable by Mark Florquin:

http://www.markflorquin.be/blog/2013/01/full-body-scan-3d-photogrammetry-photoscan-nikon-rig-d80-d7000-d700/

Processing with Agisoft and postprocessing with Zbrush.

Regards,

Karsten