Forum

Author Topic: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847  (Read 7029 times)

Triplegangers

  • Jr. Member
  • **
  • Posts: 55
    • View Profile
    • Triplegangers
point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« on: April 24, 2014, 03:35:14 PM »
It happens pretty much on all sets. When I process 360 degree array, it cuts out rectangular hole in the back of the model. But when I process just back cameras, that hole is not there anymore. Please see attached images, not that all cameras aligned just fine and it should work.

Thank you

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 14813
    • View Profile
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #1 on: April 25, 2014, 12:11:17 PM »
Hello Alexander,

Could you please specify if the same camera setup has no problems earlier, or camera positions have been changed lately?
It seems that there are not enough matching points on some image pairs for depth maps estimation between them. But since the threshold is adaptive, using only "back" cameras provides holeless result.
So generally speaking it is possible to adjust these threshold in the algorithms, but it could result in higher memory consumption and longer processing time, as more depth maps will be estimated.
Therefore could you please check if the quality of mesh reconstruction in the second case is acceptable, because it may be very noisy and even adjusting thresholds will not result in good quality output. So probably refining camera positions and overlap for the models' back area (since the problems commonly appear there for the current camera setup) will be better way.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Triplegangers

  • Jr. Member
  • **
  • Posts: 55
    • View Profile
    • Triplegangers
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #2 on: April 25, 2014, 05:11:51 PM »
Hello Alexey,

Thank you for you reply. Same camera setup had no problems before, that is correct. Interesting thing is, that problem occurs only on some scans, most of them are fine. But if it does happen, its always with the back cameras.

Will it help if I send you the set and processed chunkes, so you can have a closer look to it and advise something?

Thank you!

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 14813
    • View Profile
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #3 on: April 27, 2014, 06:46:31 PM »
Hello Alexander,

Maybe you can provide the dataset that has no reconstruction issues taken from the same camera setup?
Best regards,
Alexey Pasumansky,
Agisoft LLC

Triplegangers

  • Jr. Member
  • **
  • Posts: 55
    • View Profile
    • Triplegangers
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #4 on: June 02, 2014, 08:45:01 PM »
Hello Alexey,

Did you find what causes those holes to appear?

Thank you

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 14813
    • View Profile
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #5 on: June 02, 2014, 09:52:59 PM »
Hello Alexander,

We've received the data and now are investigating the problem.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Triplegangers

  • Jr. Member
  • **
  • Posts: 55
    • View Profile
    • Triplegangers
Re: point-dense cloud bug in new Photoscan Pro 1.0.4 build 1847
« Reply #6 on: June 02, 2014, 10:44:06 PM »
Great, hope you can find the cause.
Thank you