Messages

31

General / Re: Is it possible to import / export only markers?

« on: May 26, 2018, 05:26:00 PM »

My use case is the following:

I run Align Photos step with different settings and save results to separate project, then I add gcp points in one project and want to load them to others.

btw what is the prefered option: 1) align cameras and then add gcp and reoptimize cameras 2) add gcp and only then run align cameras?

As I can see Reference Tab have save/load but as I understand it will reload camera positions (different projects have different estimated camera parameters so I can't use it).

Update:
Seems import/export markers from Menu -> Export export markers with gps and x,y image coordinates this is what I needed.

32

General / Estimated altitude less then ground level

« on: May 26, 2018, 05:24:03 PM »

I have camera gps positions with ~285m altitude, gcp ~150m, but estimated altitude after align cameras is ~50m, which is weird, so I have large error on Z coordinate.

What can be a reason of this problem?

Update:
seems it's somehow related to gcp points, because without them error on Z coor is smaller.

33

General / Re: Example of markers

« on: May 26, 2018, 03:20:10 PM »

I was talking about detecting positions of markers on images.

Example of type of marker I want to detect in attachment.

I was trying to do it using "Cross(non coded)" type, but get very strange results (for example detected markers out of bbox of chunk), I have tried it with 10,50,90 for Tolerance parameter and get about the same bad results all the time.

34

General / Is it possible to import / export only markers?

« on: May 25, 2018, 09:22:00 PM »

Is it possible to import / export only markers?

35

General / Re: Example of markers

« on: May 25, 2018, 08:54:10 PM »

Is there 3 types exist? or 1-2 is same type?

What if I know that on the UAV flight there was 5 markers, can I get top-5 most feasible markers by Detect Markers?

36

General / align photos quality and camera calibration

« on: May 25, 2018, 08:37:38 PM »

I wonder how camera parameters (in camera calibration adjusted section )  depends on align photos quality?

I run photoscan several times and at lowest quality camera parameters all zero, i.e. adjusted=initial.

37

General / How to interpret correlation matrix?

« on: May 25, 2018, 07:59:37 PM »

How to interpret correlation matrix of camera parameters?

38

General / Example of markers

« on: May 25, 2018, 06:15:04 PM »

Where I can find example of cross and circle markers which are types in detect markers menu?

39

General / Re: DEM artifacts

« on: May 23, 2018, 01:32:04 PM »

I use this settings:   

chunk.matchPhotos(accuracy=PhotoScan.HighAccuracy, generic_preselection=True, reference_preselection=True,
                      keypoint_limit=40000, tiepoint_limit=4000)
chunk.alignCameras(adaptive_fitting=True)

what settings do you recommend to adjust?

40

General / DEM artifacts

« on: May 23, 2018, 01:17:24 PM »

Using Photoscan 1.4.2 I get some artifacts on DEM, is there any way to fix it?

41

Python and Java API / buildDenseCloud API change

« on: May 16, 2018, 03:53:51 PM »

buildDenseCloud from 1.3.3 had quality option, now in 1.4.2 it doesn't, so how now quality / memory usage can be conrtolled?

http://www.agisoft.com/pdf/photoscan_python_api_1_3_3.pdf
http://www.agisoft.com/pdf/photoscan_python_api_1_4_2.pdf

42

General / Re: Photoscan on demand processing workflow

« on: May 16, 2018, 12:36:53 PM »

Seems I don't fully understand concept of "rehostable" directory, as mentioned here
http://www.agisoft.com/forum/index.php?topic=9005.msg42218#msg42218
licence is stored in .lic file or there are some other files stored in the system?

What about if I don't use spot instances that can be shutdown accidentally, can I use this method for activate \ deactivate of photoscan?
https://agisoft.freshdesk.com/support/solutions/articles/31000134012-how-to-move-transfer-a-photoscan-license-to-another-computer
start server
activate photoscan
deacticvate photoscan
shutdown server

Also according to this
https://github.com/agisoft-llc/cloud-scripts
seems there should be done some exra work to run photoscan on server, is it only needed for run photoscan with GUI or it also affects speed of GPU processing even if I run photoscan with -platform offscreen?

43

Python and Java API / Re: How to use external python libraries in PhotoScan?

« on: May 15, 2018, 07:16:27 PM »

Copying site-packages works:

conda create -n py3.5.2 python=3.5.2 anaconda
source activate py3.5.2
pip install numpy

(py3.5.2) $ python
Python 3.5.2 |Anaconda custom (64-bit)| (default, Jul  2 2016, 17:53:06)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy as np
>>> np.__version__
'1.14.3'

rm -r  /home/user/photoscan/python/lib/python3.5/site-packages
cp -r /home/user/anaconda3/envs/py3.5.2/lib/python3.5/site-packages /home/user/photoscan/python/lib/python3.5/site-packages

44

General / Re: Licence attached to one photoscan version?

« on: May 15, 2018, 06:09:41 PM »

This helped:
photoscan-pro-1.3.4$ cp /home/user/photoscan-pro-1.4.1/photoscan.lic photoscan_copy.lic

45

General / Photoscan on demand processing workflow

« on: May 15, 2018, 05:40:20 PM »

What if I want to process data on some remote server like aws instance, how workflow should be organized in terms of activation / deactivation?

Like:
start server
activate photoscan
deacticvate photoscan
turn off server

Is number of activations is limited?

What happens if I will run spot instance that can be shut down at any time?

Like:
start server
activate photoscan
ooops accidentally shutdown