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Python and Java API / Re: Gradual Selection Python Script
« on: March 02, 2021, 12:38:36 AM »
Can you please post a link to the full script. This is exactly what I am looking for.
Many thanks,
David
Many thanks,
David
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General / Re: Seamline reuse
« on: August 19, 2020, 07:01:07 AM »
Hi GEOBIT,
Thank you for responding to my question. I am hopeful that someone out there who has done it can offer some help and advice as to how to script this.
Thank you for responding to my question. I am hopeful that someone out there who has done it can offer some help and advice as to how to script this.
3
General / Re: Adding markers from excel or csv
« on: August 17, 2020, 06:24:33 AM »
Easiest way is to turn the file into a shapefile and import it to Agisoft
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General / Re: Seamline reuse
« on: August 17, 2020, 06:23:03 AM »
Anybody out there with an answer or even a guess???
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General / Seamline reuse
« on: August 14, 2020, 03:42:34 AM »
I have a repeatable project that uses the same photocentres and specifications that I want to be as exactly the same as possible. For this, I'd need to re use the same seamlines each time I do the job. I can export the seamlines from the original project but how can I import them into subsequent projects and have Metashape use them?
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General / Revert to earlier version
« on: May 09, 2019, 08:33:37 AM »
Can anyone tell me how to revert to an earlier version of Photoscan without having to uninstall the version that is loaded? It seems you can only go up in versions and not down.
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Bug Reports / Re: Shift in ortho image during export
« on: May 08, 2019, 05:48:59 AM »
Does anyone have anything further on this? The silence is deafening.
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Bug Reports / Re: Shift in ortho image during export
« on: May 01, 2019, 05:44:37 AM »
Hi Alexey,
The imagery is flown with a wide angle camera (11.5cm lens on a 18 x 18cm format) at 25,000 feet so the raw GSD is about 0.94m. The control is accurate to +/-2m in XY but to about 0.2m in Z.
What is happening is that I am getting a reasonably good set up (Alignment / AT) and even right through the process, getting errors in the +/-4 - 5m range which I am expecting. When I check the orthos in Agisoft after the build, with the control positions overlaid, they are all quite reasonable and expected given the GSD and the control accuracy. When I export the orthos from Agisoft however, the orthos shift their position which I have never seen before. That is my problem!!
The attached files show two different points at opposite ends of the project. The "Agisoft" files show where the control point falls when the control is viewed within Metashape itself. The "Global_Mapper" files are where the exact same control file is viewed over the exported orthos when loaded into Global Mapper. The images have shifted. Why?
The imagery is flown with a wide angle camera (11.5cm lens on a 18 x 18cm format) at 25,000 feet so the raw GSD is about 0.94m. The control is accurate to +/-2m in XY but to about 0.2m in Z.
What is happening is that I am getting a reasonably good set up (Alignment / AT) and even right through the process, getting errors in the +/-4 - 5m range which I am expecting. When I check the orthos in Agisoft after the build, with the control positions overlaid, they are all quite reasonable and expected given the GSD and the control accuracy. When I export the orthos from Agisoft however, the orthos shift their position which I have never seen before. That is my problem!!
The attached files show two different points at opposite ends of the project. The "Agisoft" files show where the control point falls when the control is viewed within Metashape itself. The "Global_Mapper" files are where the exact same control file is viewed over the exported orthos when loaded into Global Mapper. The images have shifted. Why?
9
Bug Reports / Re: Shift in ortho image during export
« on: April 29, 2019, 02:47:37 AM »
Hi Alexey,
Yes I am using scanned images with fiducials. No issues there. The project that I am currently working on has 275 frames and I have used 62 control points which are distributed evenly throughout the project area.
As far as errors are concerned, they are random being from less than 1m through to 11m in some areas.
I am currently reprocessing the whole project, putting in a lot more control first to get the setup as tight as possible. Hopefully that will give me a good result but I am not holding out too much hope.
Yes I am using scanned images with fiducials. No issues there. The project that I am currently working on has 275 frames and I have used 62 control points which are distributed evenly throughout the project area.
As far as errors are concerned, they are random being from less than 1m through to 11m in some areas.
I am currently reprocessing the whole project, putting in a lot more control first to get the setup as tight as possible. Hopefully that will give me a good result but I am not holding out too much hope.
10
Bug Reports / Shift in ortho image during export
« on: April 26, 2019, 07:13:22 AM »
I have been building orthophotography from historical imagery now for nearly five years and am having a real struggle lately with the accuracy of the exported orthos.
When orthos have been built, I check the location of the control on those orthos prior to export. Once exported, I overlay the control on the orthos again in Global Mapper. I am finding that during the export process, the orthos are shifting meaning that the control does not now fit and the orthos have moved out of position. This is random and not by the same amount each time.
I have built these orthos a number of times to try and get a better result, each time taking nearly three days to process them so I am losing valuable time.
Can you please suggest why there is a shift error.
When orthos have been built, I check the location of the control on those orthos prior to export. Once exported, I overlay the control on the orthos again in Global Mapper. I am finding that during the export process, the orthos are shifting meaning that the control does not now fit and the orthos have moved out of position. This is random and not by the same amount each time.
I have built these orthos a number of times to try and get a better result, each time taking nearly three days to process them so I am losing valuable time.
Can you please suggest why there is a shift error.
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