you must use all whole scans with big portion of overlaps.
I use dual setup. and for good calibration: you can check accuracy of calibration when you are aligning scans. with a good calibration all scans must align completely with minimum deviation.
Search found 35 matches
- 17 Jul 2017, 14:54
- Forum: Structured light scanning
- Topic: partwise scanning
- Replies: 3
- Views: 5191
- 17 Jul 2017, 12:28
- Forum: Troubleshooting
- Topic: Projector error and solution
- Replies: 4
- Views: 17156
Projector error and solution
Hi. After several test and getting mesh distortion, I think the problem is the projector. because when I use dual cam setup, distortion is reduced (dual setup can eliminate or reduce a portion of errors caused by projector). can any one confirm some type of projector or projector lenses can make dis...
- 17 Jul 2017, 12:16
- Forum: Structured light scanning
- Topic: partwise scanning
- Replies: 3
- Views: 5191
Re: partwise scanning
I have a 160mm calib panel and scan object larger than 1m. The goal is to have a very good calibrated setup and scan object partially and aligned scans together.
- 10 Jul 2017, 17:55
- Forum: Structured light scanning
- Topic: CHSOS
- Replies: 1
- Views: 3327
Re: CHSOS
interesting small setup
- 01 Jul 2017, 16:50
- Forum: Troubleshooting
- Topic: What cares should be taken for Perfect Calibration
- Replies: 0
- Views: 5243
What cares should be taken for Perfect Calibration
Hi. I think HP/David Scanner has a very near relation to environment conditions. Sometimes I get very very good accuracy (on a special unique object) and sometimes very bad deformation on mesh. Any small changes on contrast or brightness or any small rotation of cameras can make a significant change...
- 25 Jun 2017, 05:34
- Forum: Troubleshooting
- Topic: Extended View mode VS stereo
- Replies: 1
- Views: 5340
Re: Extended View mode VS stereo
What are you guys experience with this? I just started getting a feel and find that extended get your more per scan while i'm getting less and sketchy results from stereo. For me, in Stereo mode mesh deformation is very less and geometrical accuracy is more. but mesh is sketchy too (quality lower t...
- 23 Jun 2017, 20:55
- Forum: Structured light scanning
- Topic: More Ranting about Davids Calibration
- Replies: 1
- Views: 3493
Re: More Ranting about Davids Calibration
The more I see other configurable SL systems the more I have to wonder. With David, when calibration is perfect I can get results that are literally as good as $40k~$60K systems. However that is a big variable. I can get usable calibration easily but really good takes a lot of care. the more SL 3D ...
- 23 Jun 2017, 09:12
- Forum: Structured light scanning
- Topic: what is the advantage of 2nd cam in David?
- Replies: 12
- Views: 15912
Re: what is the advantage of 2nd cam in David?
No. I Use two Different Cameras & Lenses (one 12mm and other 8mm). also on 8mm I should zoom camera (by software/digital zoom) to see as close as 12mm lens.WaldoPepper wrote: ↑23 Jun 2017, 08:26 One question: is it necessary to have two identical cameras & lenses?
- 20 Jun 2017, 17:56
- Forum: Troubleshooting
- Topic: Not Correct Calibration
- Replies: 6
- Views: 9808
Re: Not Correct Calibration
How did you make those panels? As I posted elsewhere I just mad some 280mm panels and ran into some interesting calibration problems. I don't know if they are related but I plan to spend some time today and see if can figure out whats going on. They are made via building two accurate masks by milli...
- 19 Jun 2017, 19:23
- Forum: Structured light scanning
- Topic: What do you do with your 3D scans?
- Replies: 3
- Views: 5192
Re: What do you do with your 3D scans?
a lot of people use their scans for 3d printing. some use them for reverse engineering, some export the stl file to their CAM software for direct manufacturing from STL and some do it as a hobby, Does anyone use DAVID here for RE & manufacturing purpose? Hi I use the software for Reverse Engine...