Topics

1

Face and Body Scanning / More megapixels or better optics?

« on: June 23, 2014, 05:42:15 AM »

I'm still trying to put together a cheap "hobby" rig.

Should I go for cheap lower end compacts (like A2500) around 12MP, or am I better of looking for used older "prosumer" devices like the PowerShot G series? The G7 and SX40 are around 6 MP I believe, and can be had at similar prices as clearance compacts.

From old online reviews of "prosumer" cameras, the pictures up close actually look about as noisy as my old 5MP Pentax Optio 550 compact camera.

But then I don't really know anything about photography and have only limited experience with PhotoScan.

2

Face and Body Scanning / Minimum number of cameras for human body?

« on: May 08, 2014, 01:53:56 AM »

Hi guys!

I want to get a 3D scan the (naked) upper and lower body of a person, for use with clothes tailoring software. I'm a poor student, so I want to build a rig with CHDK compact cameras (or similar).

The model will not require any texture or facial details. That might help make the camera requirements easier. The only thing I'm interested in is getting something like a 1/2"x1/2" mesh with no more than 1/8" error at any point. The person being photographed can wear skin-tight clothes with reference points drawn on them if that helps (or even drawing straight on the body).

I will build a static "cage" rig for the cameras, since that seems to get the best results.

My question: What do you think is the minimum amount of cameras I can get away with? Any tips, or gotchas?