Search found 18 matches

by Rashiga
09 Nov 2019, 19:20
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

Thank you for the well-explained answer I will also go for a fixed focus lens. Up to now, I have done the following, 1. To reduce the field of view of the projector I 3d printed an extension tube and moved the whole lens element forward which allowed me to have a smaller field of view to scan smalle...
by Rashiga
09 Nov 2019, 09:18
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

Thanks for your reply. Btw why did you go for a fixed focal length lens? doesn't it make things difficult when scanning different size objects?
by Rashiga
09 Nov 2019, 07:12
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

What type of lens do you use OBNRacerMan?
by Rashiga
25 Oct 2019, 16:49
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

My projector allows you to focus from about a distance of 100mm, giving out a field of about 90x50mm in size. There is still a problem with the placement, so you have to scan from a more distant distance - about 150-200mm. When I tried to scan the coins, they occupied only a small part of the frame...
by Rashiga
25 Oct 2019, 15:22
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

Since I wanted to scan smaller objects I purchased a macro close up lens which is used for DSLR cameras.The objective was to reduce the field of view of the projector in order to achieve better quality projection. But what I found was when I add the macro close up lens only the center part of the pr...
by Rashiga
22 Oct 2019, 17:14
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

@OBNRacerMan and @Micr0,

Any tips for scanning small objects size ranging from 5 to 6 cm max length.

Thanks.
by Rashiga
17 Oct 2019, 04:19
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Re: Noob question on SLS

Thank you @Micr0 and OBNRacerMan, for the information you have provided. In summary, theses are the key components to achieve a better scan. 1. A lens with lower distortion. 2. Method of image compression of the camera. 3. Camera sensor with lesser noise. 4. Projector with a decent resolution. For m...
by Rashiga
13 Oct 2019, 15:04
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 36
Views: 34299

Noob question on SLS

Hi all,

What does determine the scanning resolution, is it the camera resolution or projector native resolution?

Also does using an LCD projector give bad results? Why do DLP projectors are always prefered?

Thanks