Forum

Author Topic: Generate pointcloud of 266 Ultracam X photos  (Read 3281 times)

AS_mining

  • Newbie
  • *
  • Posts: 19
    • View Profile
Generate pointcloud of 266 Ultracam X photos
« on: April 24, 2015, 09:28:39 AM »
Hello,

i have a block of 266 ultracam x photos (14430 x 9420 pixels)  and i want to generate a pointcloud in ultrahigh.

All the depth images are calculated an saved, but i can´t calculate the pointcloud, because of the error : not enough memory.
My Workstation has 256 GB RAM, but the harddisk has left only 80 GB free space.

I can calculate the pointcloud of only one activated photo. Is there a way, perhaps per script, to calculate the pointcloud of every single photo and after to merge the single pointcloud to one?

Thanks

Andreas

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 13211
    • View Profile
Re: Generate pointcloud of 266 Ultracam X photos
« Reply #1 on: April 24, 2015, 04:06:26 PM »
Hello Andreas,

I think, you can use chunk duplicates and smaller bounding boxes to generate the dense cloud by tiles and them merge them into the single chunk.

2660 UltraCam images in Ultra will require similar memory space to 26600 images of 13 MPix, so actually I doubt that even 256 GB RAM will be sufficient for dense cloud generation of the whole dataset at once.
Best regards,
Alexey Pasumansky,
Agisoft LLC

StevenF

  • Newbie
  • *
  • Posts: 39
    • View Profile
Re: Generate pointcloud of 266 Ultracam X photos
« Reply #2 on: April 24, 2015, 04:26:58 PM »
Alexey provided me with a tiling script that helped me to generate a dense cloud with 1000 images and only 48gb of ram, but it took several weeks. The script is available in one or two places on this forum, but I have an updated version with a few useful modifications. Message me if you're interested.

AS_mining

  • Newbie
  • *
  • Posts: 19
    • View Profile
Re: Generate pointcloud of 266 Ultracam X photos
« Reply #3 on: April 24, 2015, 09:07:08 PM »
When i look at the memory use only a part of the 192 GB is used but i get the error there was not enough memmory.

I checked smaller bounding boxes but it runs only for the area of 20 photos.

Dear StevenF i´m interested on your new script.

Thanks for your answers !

Andreas

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 13211
    • View Profile
Re: Generate pointcloud of 266 Ultracam X photos
« Reply #4 on: April 24, 2015, 09:08:44 PM »
Hello Andreas,

Are you sure that you have 64-bit version of PhotoScan installed?
Best regards,
Alexey Pasumansky,
Agisoft LLC

AS_mining

  • Newbie
  • *
  • Posts: 19
    • View Profile
Re: Generate pointcloud of 266 Ultracam X photos
« Reply #5 on: April 27, 2015, 11:14:48 AM »
Hello Alexey,

yes i have the 64-bit version of PhotoScan installed.

I set up the project with an earlier version of PhotoScan, of course 64-bit version. I think 1.0.