Messages

16

Face and Body Scanning / Re: Building mesh of a Face - Poor Quality

« on: December 12, 2016, 01:42:53 AM »

Hi all

I am following this Youtube tutorial where he goes step-by-step and he gets some amazing results.

https://www.youtube.com/watch?v=GEsRcFQ1_H8&t=622s

I'm literally doing the exact same thing, except I have MORE photos, and yet in the step after I build the Dense Cloud, I am building the Mesh and I am getting very poor quality.

I am trying to export this mesh to a STL file to print, but the face is not smooth at all like in the tutorial.

Any ideas what I am doing wrong?

How long did it take you to shoot all the photos ? The boy should be frozen during the shooting. Unless you use a multicamera rig I think it's close to impossible that a boy does not move for the entire time needed.

17

Face and Body Scanning / Re: How to get better results ?

« on: November 07, 2016, 11:48:56 AM »

Regarding noise projection, what equipment do you recommend? Has anyone made noise projection work with smaller turntables and a tripod/fixed camera?

you can use any suitable videoprojector, you just turn on/off projecting an image with the noise pattern you prefer.

Regarding the second question the answer is no, it won't work. The projected noise must become part of the surface color of the target. If you rotate the target, the noise will be projected in different spots in the different shots.

18

Face and Body Scanning / Re: Hand Scanning - Texture exchange afterwards

« on: September 21, 2016, 11:56:09 PM »

if I understand correctly, you should use an external 3d program to manually define UVs on your model and map the hand images onto these. If you want Photoscan to do the work for you, you need to reconstruct the model using photos from your original  hand.

You may try the following trick: take as many photos of your hand as you have poses from the gypsum model you used, and as close as possible in size and orientation. Give these photos the same filenames of the ones of the gypsum hand, then open a new chunk, import there the new photos, import the camera alignments from the reconstructed gypsum hand (you should save it first after the reconstruction), import the mesh from the gypsum hand.

At this point your new chunk has the reconstructed mesh, the reconstructed camera alignment and the new photos and you can create the texture.

It will most likely come out horrible and useless, unless you are *very* accurate in photographing your hand *exactly* like the fake one was photographed.

19

Face and Body Scanning / Re: How to get better results ?

« on: May 11, 2016, 01:47:35 PM »

do you use noise projection ?

20

Face and Body Scanning / Re: Scanning Persons which wear glasses

« on: January 21, 2016, 06:25:35 PM »

Hi,

it's not true that it's not possible, unless the glasses are mountless or with a very thin mount. But those you cannot print anyway.

I'm trying to attaxch a few snapshots of people with glasses that I have succesfully scanned (RPi scanner).

After the reconstruction you will need to work a bit with the 3d editing software, Zbrush or else, to fix the texturisation which may come unprecise (like in one of my examples). The biggest issue is usually that they come out a bit too thick, but this is very desired if the model has to be 3d printed.

Kind Regards
Max