1
General / Re: Custom datum and Projection file
« on: July 29, 2015, 06:12:58 PM »
Thanks a lot.. I think i have got the mechanism now.
Cheers and kindest regards
Cheers and kindest regards
Show Posts
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
2
General / Re: Custom datum and Projection file
« on: July 29, 2015, 05:41:36 PM »Mohabon,
according to your canali datum definition, I created a prj file that can be imported into PhotoScan. Note thta the 7 parameters have sign inverted as in your frinition it was specified as From WGS84 and not TOWGS84....
Attached is the file... when importing into PS, it created a user defined Coordinate system called Geographic Coordinate System,
Maybe this can help,
Lovely!
It does work perfectly.
Now i wpould like to add also a PROJECTION and things are not easy aswell. Can you also fix that syntax by any chance?
Thanks and kind regards
3
General / Re: Custom datum and Projection file
« on: July 27, 2015, 10:22:41 AM »
I apologise for my ignorance, but i dont exactly understand.
Maybe a numeric example could clean the sky!
This is standard project file for Vietnam i can save from Photoscan.
PROJCS["VN-2000 / UTM zone 48N",GEOGCS["VN-2000",DATUM["Vietnam 2000",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[-192.873,-39.382,-111.202,-0.00205,-0.0005,0.00335,0.0188],AUTHORITY["EPSG","6756"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.017453292519943,AUTHORITY["EPSG","9102"]],AUTHORITY["EPSG","4756"]],PROJECTION["Transverse_Mercator",AUTHORITY["EPSG","9807"]],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","3405"]]
This is customized project file with customized 7 parameters (in glow) of Molodensky-Helmert i would like to use. (I simply changed the TOWGS84 parameters.
PROJCS["VN-2000 / UTM zone 48N",GEOGCS["VN-2000",DATUM["Vietnam 2000",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[210.1472,106.1365,-106.0101,2.444739015,-1.854031022,0.048485651,12.02226514],AUTHORITY["EPSG","6756"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.017453292519943,AUTHORITY["EPSG","9102"]],AUTHORITY["EPSG","4756"]],PROJECTION["Transverse_Mercator",AUTHORITY["EPSG","9807"]],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","3405"]]
Could you please make me understand what is to be changed in order to have this file good to be imported? Actually i have tried many solution, but nothing seems to be working.
Kindest regards,
-M
Maybe a numeric example could clean the sky!
This is standard project file for Vietnam i can save from Photoscan.
PROJCS["VN-2000 / UTM zone 48N",GEOGCS["VN-2000",DATUM["Vietnam 2000",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[-192.873,-39.382,-111.202,-0.00205,-0.0005,0.00335,0.0188],AUTHORITY["EPSG","6756"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.017453292519943,AUTHORITY["EPSG","9102"]],AUTHORITY["EPSG","4756"]],PROJECTION["Transverse_Mercator",AUTHORITY["EPSG","9807"]],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","3405"]]
This is customized project file with customized 7 parameters (in glow) of Molodensky-Helmert i would like to use. (I simply changed the TOWGS84 parameters.
PROJCS["VN-2000 / UTM zone 48N",GEOGCS["VN-2000",DATUM["Vietnam 2000",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[210.1472,106.1365,-106.0101,2.444739015,-1.854031022,0.048485651,12.02226514],AUTHORITY["EPSG","6756"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.017453292519943,AUTHORITY["EPSG","9102"]],AUTHORITY["EPSG","4756"]],PROJECTION["Transverse_Mercator",AUTHORITY["EPSG","9807"]],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","3405"]]
Could you please make me understand what is to be changed in order to have this file good to be imported? Actually i have tried many solution, but nothing seems to be working.
Kindest regards,
-M
4
General / Re: Custom datum and Projection file
« on: July 26, 2015, 11:53:32 AM »Quote
Please also make sure to remove authority records for PROJCS, GEOGCS and DATUM records as default transformation parameters will be loaded otherwise.
Hello and thanks,
Could you please specify what you mean with "remove authority records fro PROJCS etc"?
Should i remove the entire line or just change number inside? It is not clear at all.
Thanks and kind regards
5
General / Re: Custom datum and Projection file
« on: April 23, 2015, 01:32:05 PM »
Hello Dmitry and thanks.
Can you please specify angular units and sign convention? Also scale is PPM?
Thanks and kind regards,
Moh
Can you please specify angular units and sign convention? Also scale is PPM?
Thanks and kind regards,
Moh
6
General / Satellite Image WV3 - Working with PS?
« on: April 17, 2015, 01:29:36 PM »
Hello,
anyone knows if PS Pro is able to process the new 30 cm resolution
DigitalGlobe WorldView-3 Stereo Satellite Photos? We have a 240 sqKm area to investigate and get a DTM.
There are some articles showing very good results in DTM generation with those photos.
Placing GCPs is not a problem, but if PS pro does not align the images, then our University will waste a lot of money!
Is there anyone that already worked in such a scenario, please let me know or PM me.
Thanks and kind regards,
MC
anyone knows if PS Pro is able to process the new 30 cm resolution
DigitalGlobe WorldView-3 Stereo Satellite Photos? We have a 240 sqKm area to investigate and get a DTM.
There are some articles showing very good results in DTM generation with those photos.
Placing GCPs is not a problem, but if PS pro does not align the images, then our University will waste a lot of money!
Is there anyone that already worked in such a scenario, please let me know or PM me.
Thanks and kind regards,
MC
7
General / Custom datum and Projection file
« on: April 08, 2015, 10:09:20 AM »
Hello,
I want to import a local datum transformation base on Molodenskii 7 parameters as follows.
Then i want to use standard Transverse Mercator as projection.
Is there any quick tool to create a PRJ file that is fully compatible with PS Pro format? Is there any template that i can use for this scope?
Thanks and regards
I want to import a local datum transformation base on Molodenskii 7 parameters as follows.
Then i want to use standard Transverse Mercator as projection.
Is there any quick tool to create a PRJ file that is fully compatible with PS Pro format? Is there any template that i can use for this scope?
Thanks and regards
8
Feature Requests / Orthomosaics and Export perimeters
« on: March 31, 2015, 12:07:18 PM »
Hello,
while we love the countless export options in PS Pro, the import side could be improved, in our opinion.
1) Import a working perimeter in SHP/DXF format. As University, we use PS mainly for aerial mapping, so cartography is available mainly in DXF/SHP format. It would be so much appreciated to have chance to import some DXF/SHP layers in PS Pro.
2) As mentioned above, we would greatly appreciate also to setup working perimeter in DXF/SHP format, instead of actual rectangular bounding box
3) Finally we would greatly appreciate also to have DEM/Orthmosaics Export Perimeter perimeter in DXF/SHP format. This would greatly improve our work, save a lot of time in trimming/cutting images border in post-processing.
Thanks and kind regards
while we love the countless export options in PS Pro, the import side could be improved, in our opinion.
1) Import a working perimeter in SHP/DXF format. As University, we use PS mainly for aerial mapping, so cartography is available mainly in DXF/SHP format. It would be so much appreciated to have chance to import some DXF/SHP layers in PS Pro.
2) As mentioned above, we would greatly appreciate also to setup working perimeter in DXF/SHP format, instead of actual rectangular bounding box
3) Finally we would greatly appreciate also to have DEM/Orthmosaics Export Perimeter perimeter in DXF/SHP format. This would greatly improve our work, save a lot of time in trimming/cutting images border in post-processing.
Thanks and kind regards
9
Feature Requests / Edit Circle
« on: March 31, 2015, 11:56:50 AM »
Hello,
similarly to many other users, we think to have quite good hardware and GPU, but resources are never enough when managing dense point clouds or classes in aerial mapping.
From other software, we find extremely useful to implement an "Edit Circle" (with radius user selected), that can be moved by double clicking on the cloud. For moving, i would suggest to use Arrows or WASD, like suggested by another user previously.
When "Edit Circle funtion" is ENABLED, only points inside the circle are shown and can be edited, that makes editing fast, easy, reliable and, what is more important, quick even with a laptop.
I am sure this implementation would be extremely appreciated, because sometimes (even with our Dual Xeon and Dual ATI GPU configuration), the dense point clould cannot be managed because computer hangs and even deleting a few points becomes a 15 minutes operation.
Regards
I
similarly to many other users, we think to have quite good hardware and GPU, but resources are never enough when managing dense point clouds or classes in aerial mapping.
From other software, we find extremely useful to implement an "Edit Circle" (with radius user selected), that can be moved by double clicking on the cloud. For moving, i would suggest to use Arrows or WASD, like suggested by another user previously.
When "Edit Circle funtion" is ENABLED, only points inside the circle are shown and can be edited, that makes editing fast, easy, reliable and, what is more important, quick even with a laptop.
I am sure this implementation would be extremely appreciated, because sometimes (even with our Dual Xeon and Dual ATI GPU configuration), the dense point clould cannot be managed because computer hangs and even deleting a few points becomes a 15 minutes operation.
Regards
I
10
Feature Requests / Re: WASD keys and free flying in viewport
« on: March 31, 2015, 11:45:36 AM »
+1 by me also
11
General / Workflow question: 2 cameras
« on: October 25, 2014, 01:07:32 PM »
hello,
- I have an aerial project where i used 2 different UAVs with 2 different cameras. So i have dataset of pcitures for camera1 and dataset for camera2. since cameras are different, also calibration file are to be applied separately.
- I also have collected a good number of precise GCPs well-spread inside the survey area.
Question is: what is best workflow to use to process these dataset and obtain 1 complete dense-cloud + orthomosaics?
I notice the following problems:
1) For each chunk of pictures, i can only apply 1 calibration file, so i need to create 1 chunk for each camera. In my case, i need to create 2 chunks and apply calibration.
2) If i align the 2 chunks separately, how do i merge chunks? It looks like merge-chunk command is available only after dense-cloud has been created. This means that GCPs are to be applied for each chunk, that is bad because GCPs distribution has been studied to be well-spread for the entire area, and not for 2 single chunks.In the outer areas of each chunk, this would cause BIG errors because GCPs are not as dense as required to have good accuracy
Does anyone know a good workflow to obtain a good result?
Kind regards,
moh
- I have an aerial project where i used 2 different UAVs with 2 different cameras. So i have dataset of pcitures for camera1 and dataset for camera2. since cameras are different, also calibration file are to be applied separately.
- I also have collected a good number of precise GCPs well-spread inside the survey area.
Question is: what is best workflow to use to process these dataset and obtain 1 complete dense-cloud + orthomosaics?
I notice the following problems:
1) For each chunk of pictures, i can only apply 1 calibration file, so i need to create 1 chunk for each camera. In my case, i need to create 2 chunks and apply calibration.
2) If i align the 2 chunks separately, how do i merge chunks? It looks like merge-chunk command is available only after dense-cloud has been created. This means that GCPs are to be applied for each chunk, that is bad because GCPs distribution has been studied to be well-spread for the entire area, and not for 2 single chunks.In the outer areas of each chunk, this would cause BIG errors because GCPs are not as dense as required to have good accuracy
Does anyone know a good workflow to obtain a good result?
Kind regards,
moh
12
General / export Point classes
« on: July 12, 2014, 09:33:47 AM »
Hello,
is it possible to export an image with point classes (after Dense Cloud Classification has been executed) as a GeoTIFF?
It would be extremely useful to use as overlay layer in a GIS to check if classification was ok, compare with other orthomosaics etc.
Regards,
Moh
is it possible to export an image with point classes (after Dense Cloud Classification has been executed) as a GeoTIFF?
It would be extremely useful to use as overlay layer in a GIS to check if classification was ok, compare with other orthomosaics etc.
Regards,
Moh
13
General / Re: Problem with Dense Cloud Classification
« on: June 23, 2014, 03:56:44 PM »
Hello 3DFranz and thanks a lot for your interest.
I would also appreciate some extra information about the parameters you suggest in the scenario i described = think crop field as tall as 1.5m with some trenches inbetween.
You suggest H=0.5, but what cell size? and Angle?
And at last: howto reset the dense cloud classification? I cannot see a reset button or anything related with classes in the project.
Kind regards,
MoH
I would also appreciate some extra information about the parameters you suggest in the scenario i described = think crop field as tall as 1.5m with some trenches inbetween.
You suggest H=0.5, but what cell size? and Angle?
And at last: howto reset the dense cloud classification? I cannot see a reset button or anything related with classes in the project.
Kind regards,
MoH
14
General / Problem with Dense Cloud Classification
« on: June 23, 2014, 10:14:58 AM »
Hello,
i would like to receive some feedback by expert users about a dense cloud classification tool on crop fields (as far as i know the worst possible scenario to apply the algorythm).
The crop field area i want to classify is 250m by 150m. The crop is 1.5m tall from ground level since it is june and it is almost ready to be cut! See "Crop field.jpg"
I used standard parameters like 8.5°, cell=100m and height = 1m in the classify ground point.
As you can see, there also some "trenches" which are supposed to help the algorythm.
After using the algorythm, i find a very strange result: trenches are classified as "vegetation", while crop is classified as ground, as you can see in the other jpg.
Question 1:How can this happen? Since ground is the lowest level, shouldnt this problem never happen?
Question 2: I have manually classified the crop field as "Low vegetation" and i have re-run the Dense Clould Classify tool. I was very careful not to select the trenches.
I thought that this "boost" would have helped the algorythm in refining the classication and maybe sort the problem. I have reapplied the classification tool and i got same results: looks like that manual intervention is ignored by algorythm. Is this confirmed? Can it be changed by any chance? It would improve a lot the results.
Thanks
i would like to receive some feedback by expert users about a dense cloud classification tool on crop fields (as far as i know the worst possible scenario to apply the algorythm).
The crop field area i want to classify is 250m by 150m. The crop is 1.5m tall from ground level since it is june and it is almost ready to be cut! See "Crop field.jpg"
I used standard parameters like 8.5°, cell=100m and height = 1m in the classify ground point.
As you can see, there also some "trenches" which are supposed to help the algorythm.
After using the algorythm, i find a very strange result: trenches are classified as "vegetation", while crop is classified as ground, as you can see in the other jpg.
Question 1:How can this happen? Since ground is the lowest level, shouldnt this problem never happen?
Question 2: I have manually classified the crop field as "Low vegetation" and i have re-run the Dense Clould Classify tool. I was very careful not to select the trenches.
I thought that this "boost" would have helped the algorythm in refining the classication and maybe sort the problem. I have reapplied the classification tool and i got same results: looks like that manual intervention is ignored by algorythm. Is this confirmed? Can it be changed by any chance? It would improve a lot the results.
Thanks
15
General / Re: OpenCL Cores Enabled vs CPU Disabled?
« on: May 07, 2014, 01:01:21 PM »
CPU are not so good: 2 x Intel Xeon E5-2620 Socket2011 15MB - 2.0Ghz
I have some other single CPU workstation that is way faster in aligning than this Dual Xeon because alignment requires CPU high-clock instead of multiple cores. But when building dense cloud or meshing, this Dual Xeon becomes more efficient and faster.
To conclude: you want me to disable 24 cores or only 4?
Thanks and regards
I have some other single CPU workstation that is way faster in aligning than this Dual Xeon because alignment requires CPU high-clock instead of multiple cores. But when building dense cloud or meshing, this Dual Xeon becomes more efficient and faster.
To conclude: you want me to disable 24 cores or only 4?
Thanks and regards
