Topics

1

General / How to most efficiently update this system?

« on: September 07, 2016, 10:28:53 AM »

Hello,

we have been running Photoscan Professional on the following system for the past two years:

- 12 core i7-3970X @ 3.5 Ghz
- MSI X79A-GD65 (8D) (MS-7760)
- AMD Radeon R9 200 / HD 7900 Series
- 64 GB RAM
- 1000 W power supply

I am planning to substitute the AMD for a 8GB GTX 1080. Does that make sense to you or does that not fit to the other components and does the software already support the new Nvidia?

thank you!

2

General / How heavily reduce geometry for Orthophoto?

« on: May 02, 2013, 10:15:59 AM »

Hello everybody,

I am still working on my first test with PS and I have created a 38Mio Face geometry of a 85*170 m urban area an now want to create an orthophoto. Are there any rules on how to decide on the number of faces I should have in my model to get a good orthophoto, with the full 38 Mio points it seems to take 120 Hours? Is there a general rule about the number of faces I need dependend on the complexity of terrain and size of the area?

thank you very much,

Ludwig

3

Camera Calibration / Getting k1, k2, k3 from distortion table?

« on: April 17, 2013, 08:46:37 PM »

Hello everybody,

I have a Sony NEX-5 with a fixed 16 mm lens. I got it calibrated in a laboratory and got a report with all the parameters (fx, fy, cx, cy) in mm (so I converted them in pixels and I get numbers similar to the ones estimated by PhotoscanProfessional, difference in fx, for example is about 30 pixels). The report also has a radial symmetric lens distortion table. As I am a photogrammetry beginner I am wondering if I can convert the values in the table to the k1, k2, k3 parameters to use in Photoscan Professional.

Any help is very much appreciated,

regards,
Ludwig