1 Topic by jooshs

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Topic: Improve 3d scanning with ReconstructMe

I learned about ReconstructMe at the Pittsburgh Mini Maker Faire this weekend and had to try it out!  It took about one full night to download all the right drivers and software, but it wasn't very tough and worked on the first try. This is so much less clunky and more accurate than 123d catch that there seems to really be some potential here. I was wondering if anyone else has messed around with improving the resolution and or using hacks such as putting a reading lense in front of the kinect camera.

For those who don't know, it is a program that utilizes a kinect to take a 3d scan and is done in one continuous rotation of the object instead of taking 40 or 50 pictures.

http://reconstructme.net/

First attempt picture is attached. It was with regular resolution scan, repositioned and scaled with replicator G, trimmed with Blender, replaced with rep G, sliced in Slic3r at .1 mm height, and printed in pronterface. It took about 2 hours with no infill and 5 perimeters.

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2 Reply by IanJohnson

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Re: Improve 3d scanning with ReconstructMe

How small of an object do you think you can scan reliably with the Kinect?  123D Catch works pretty well for small things you can shoot with on macro but it is terrible for people unless you can shoot with a bunch of cameras synced together.

3 Reply by lawsy

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Re: Improve 3d scanning with ReconstructMe

I have a rival system setup for 3D scanning. It uses a webcam, a small projector and Davidscan.

The results so far have been outstandingly detailed.

Weaknesses are shiny objects and really dark objects not scanning.

lawsy's Website

4 Reply by IanJohnson

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Re: Improve 3d scanning with ReconstructMe

Did your source your own cam and projector?  How much did it cost all together?  On the site it says something about their projector having a special long focus lens.  Did you need to make any modification to your projector, if you didn't buy it from David?

5 Reply by lawsy

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Re: Improve 3d scanning with ReconstructMe

Sourced everything myself, total cost was about AU$1000.

-Dell M110 projector ~$450
-Logitech C615 webcam ~$60
-License for Davidscan ~$400
-Painting easel converted to adjustable projector and webcam tripod. ~$30
-Gooseneck lamp to steal gooseneck for mounting camera ~$30

No modifications made to any of the hardware.

lawsy's Website

6 Reply by Aldo (edited by Aldo 2012-09-25 07:25:18)

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Re: Improve 3d scanning with ReconstructMe

You can actually get pretty good results with reconstruct-me. Better than with  http://www.david-laserscanner.com/ I would recommend you sit down on an office chair and turn, while somebody else pushes the spacebar.

I just played around a little with reconstruct me, and as you can see,.. even featureslike the tshirt are visible. And  it's only a height difference of 5 mm.

3d Scan test



You could try to triangulate it with the 3d software ofyour choice.

7 Reply by jooshs

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Re: Improve 3d scanning with ReconstructMe

I've definitely seen very nice scans of people and larger objects with great definition. However, I would like to try to scan other smaller objects very accurately. As I said, everything I've done with this has worked much easier and nicer than other programs I've used. But I would like to try small objects and to move them much closer to the kinect. One mod I read about included creating a dark box with led lights around the top perimeter and placing the small object on something like a black lazy Susan and rotating it from underneath. To allow the kinect to be placed very close to the object and focus properly, a reading lense was fixed in front if the camera. I won't be back into town to try this till Friday. I do think that for $40 for the kinect, the quality I am seeing so far is matching that of very expensive setups.

8 Reply by Aldo

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Re: Improve 3d scanning with ReconstructMe

Small objects are definetly a problem with the kinect for Xbox.

1. You can't get closer than 30 cm (11.8 inch)... circa.

2. When you are 30 cm away, the object should be about 20cm high. So small objects could be scanned with the kinect for windows... or with david laser scanner... or with this attachment: http://www.amazon.com/Zoom-Kinect-Xbox- … B0050SYS5A (but i never tried the last one).

9 Reply by ysb (edited by ysb 2012-09-25 13:46:53)

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Re: Improve 3d scanning with ReconstructMe

nop.. i try to scan with the zoom lens with Kinect 360 and even after a calibration , the result is awful... it seems that reconstructme doesn't like the "fish eye" effect of the zoom lens.. ( it's a Nyko zoom ) so for the moment, you need object of a shoe box size for good result ... perhaps i do something the wrong way..

http://www.legitreviews.com/images/reviews/1632/E3_2011_Nyko.jpg

Find all my 3D printable models here
Game of ropes 2 online..Adult only

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10 Reply by jooshs

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Re: Improve 3d scanning with ReconstructMe

It seems like using the zoom lens would have the opposite effect that we are trying to achieve.  The zoom lens is kind of a misleading name.  This lens is actually a Widefield lens. i believe that the effect we are trying to achieve, is to magnify the object that we are trying to scan. That is why I understood that the reading lens may work better.

11 Reply by Aldo

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Re: Improve 3d scanning with ReconstructMe

I actually bought this 3d Scanner: http://www.vi3dim.com/

But it didn't work. So maybe they patched some issues. It was about 3 Years ago. It should be okay for smaller objects.

12 Reply by Aldo

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Re: Improve 3d scanning with ReconstructMe

I found something new and interesting: http://www.hp.com/united-states/campaig … index.html

250 $ at e-bay...

13 Reply by Stoney

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Re: Improve 3d scanning with ReconstructMe

my only saved file after playing with reconstructme .. dog on a blanket with tassles on a couch  ..

i will have to try printing it of course. i miss that dog..

14 Reply by jooshs

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Re: Improve 3d scanning with ReconstructMe

Stoney, did you just make that?  Was it from rotating around the couch?