Laser scanner software

[hllrsr]

Persew,
Looks pretty decent.Have gotten myself a new webcam as David didn't like my old one, and am trying John's idea with the slide projector instead of the laser.
If I can figure out how to do screenshots, I should be able to show some results in the next few days.

Iain

[greybeard]

Iain, have you picked up recent posts from the David forum, that you don't even need a slit ?
The software recognizes the contrast edge between light and shadow, so even an the edge of the projector beam will work.
Couple that with someone's idea of projecting onto a mirror, then use the reflected beam. you then only need to move the mirror !
Steal one out of an old scanner - narrow and front silvered.

I'm leaving the David approach for the time being as I can't work out how to use my 4mb pixel camera. The video it takes are at a resolution of about 150 x 130, whereas the stills are about 2000 x 1800 - very frustrating.

John

[hllrsr]

John,
Have you looked at the AccuTrans 3d software?
Has nothing to do with laser (or beer) scanning, but might be another way to do what you want.
I'm trying to get Scanalyze working, but it keeps giving me fits and errors, maybe someday it will suddenly all make sense, and WORK!

ATB,

[greybeard]

Morning Iain.
I should have updated my last post, but been somewhat busy with a reluctant campervan of late.
On the David forum, one of the boss men says that it needs a narrow beam as it takes an average position from each edge(shadow/light and light/shadow) in each pixel column to use as the data point.
Curiously this doesn't explain how someone has managed to post a 3d model in the gallery of a wooden lay-figure using just a single edge !!!
So the jury is still out on that one.
I'll have a look at the accutrans over the weekend, so thanks for the pointer.
John

[hllrsr]

Evening John, (or at least it is in your part of the world..)

I know what you mean about lack of time, I had what should have been minor day surgery earlier this week and have been absolutely knackered with the pain killers!
Troubleshooting software issues and large amounts of prescription pain killers do NOT seem to work well together..I Have been trying to find answers to setting up David, and think I will shelve it for now. Maybe next week I can look at it again,

ATB
Iain

[greybeard]

Iain - Take care.
John