Hello Justyna, First, thank you for this tutorial !! Good job ! i have a question about the GCP for georeferencing. how do you georeference images and integrate gcp with coordinates in another projection? I explain, I have images with WGS84 coordinates but to improve the accuracy I need to use points in a more precise local projection. Unfortunately when I import these points they are not visible in the model. And there are no image matches when I click on these points (landmarks). Ps: sorry for my english i'm french ! Best regards, Marc
In the reference pane, click "reference settings" icon (the last one in the row) and you can independently choose a coordinate system for your cameras (WGS84) and then the local coordinate system for your markers.
Yes, your GCP can be in the local system. But the. If you will try to align the photos to them, there needs to a transformation. As far as I know Agisoft does transformation from different geographic/projected systems but with your local one you will probably just need to stick to it and have the whole project in local coordinates
You use Hight Field, than the mesh looks like towers. If choose arbitrary, be much better. This option (Hight Field) use only in fiel, like sand deposit. Thanks for the video, was great. (escuse for my english)
Super filmik. Jestem ciekawy czy końcowe parametry zostały wygenerowane same czy też musiałaś je "wyciągnąć" z programu pojedynczo ? Jeśli same to czy masz jakiś filmik jak to robisz ? Pozdrawiam
Końcowe parametry w raporcie są generowane automatycznie po przejściu całego procesu przetwarzania. Niektóre można kontrolować - np. ustawiając "tie point limit" przy procesie "align photos", a niektóre, jak na przykład errors, są kalkulowane przez program.
@@justynajeziorska6205 Dziękuje za odpowiedź. Czy ta opcja generowania automatycznego to "Survey Statistic" ? Mam w niej jedynie "camera overlap" i "camera locations" bez "Processing Parameters" ;"camera rotations" i "Grand Control Poit" (pewnie tego ostatniego dlatego że w moim pierwszym nalocie ich nie wyznaczałem :D). Może być to spowodowane tym, że działam na trialu ? Czy też możliwość wygenerowania "Processing Parameters" znajduję się w innej zakładce jak "tools"
@@krzysztofbuczek6832 trial powinien mieć taką samą funkcjonalność jak pełna wersja. Tak się reklamują. Błędy rotacji zdjęć są przedstawione graficznie jako części okręgów. A w przypadku GCP jako kształty i kolory elips
Good morning, can you tell us witch computer configuration (Sdd nvme, graphic card and others) you are using to this processing in 15 minutes? Thank you
AYUDA!!! las curvas de nivel se generan en valores (-2, -4 -8 etc...) respecto al lugar de despegue, como hacen para que aparezca la elevación real del terreno (1784 metros sobre el nivel del mar) GRACIAS!!!!
Hi Justyna, Thx. for the detailed explanation. For the updated ver. 1.6 of Metashape, if I want to determine the height of an object (Tree,Building etc.) using the DSM and DTM (as described in the Ver. 1.6 Metashape manual), how can the DTM be determined and then "DSM-DTM= height" be determined ? Thx.
There is a option “filter ground points”. It has 3 parameters describing the angle, radius and conditions to determine which points will be classified as ground. It is not perfect but you can achieve ok results. Then you go to generate DEM and you indicate “only ground points” that should create a “bare earth” DEM. Note that the wholes where the items (vegetation, buildings…) were will be interpolated so you will see flat spots in their places
And then I took it out of Agisoft to GIS software (QGIS and GRASS opensouce and free) and just a simple map calculation of differences between the layers. If you want to calculate the tree tops w height I recommend using R package ForestTools
Good video. 1 - In the Alignment Process you didn´t show the number of key and tie points and how many do we have to use. 2 - In the optimization, Do I always have to select all the coefficients or its depends of the camera that I used? 3 - when I create the Dense cloud, I use HIGH and AGRESSIVE - Am i doing something wrong? I hope you can help me.
1 - Unless there is a problem with alignment, I go with the default values 2 - No, you don't have to check all the coefficients, unfortunately, I am not an expert on camera optics, but from what I know, the k coefficients are not as crucial 3 - HIGH accuracy for the dense cloud generation requires much more computational power, if your computer is powerful enough and your project not too big, you can certainly go for HIGH. It will just take more time. Using Mild, Moderate or Aggressive depth filtering depends on the amount of the outliers you want to preserve. If you are modeling a surface with complex geometry (like plants) and you want to preserve all the details you should use Mild or even turn the depth filtering off.
Great video with clear explanation (5 Stars). I have a problem, after importing the GCPs i tried to filter photos by markers option but the photos are not appearing with any of the points. Plz hlp...!
go into one of the photos, right click and place marker, match your marker to that point. Do it to at least 2-3 photos. It will apply it to others automatically
There is no way to mosaic two independent orthophotos as far as I know. There is a way of processing the imagery in chunks. As a result you have two partial datasets (chunks) and merge it together with the use of ground control points.
Justyna, when you are processing your DEM, are you using Depth Cloud as the source to produce a DSM? I am relatively new to Metashape and trying to use the DEM to create a DSM, capturing both natural and artificial features of the environment
The only way of doing both the DEM and DSM is by filtering the ground points. Once you have the dense point cloud go to tools and classify ground points. That would allow you to have just ground points based on them you can build a DEM. It is very tricky with irregular or dense vegetation though. More on classifications in this article agisoft.freshdesk.com/support/solutions/articles/31000148866
Thank you for the video. It is helpful. I am facing a problem. I import the GCP data as .CSV file by using "import reference" but it does not appear under the markers option. i have data for 5 GCP. thanks for your reply
The measurements are done in the field with heigh accuracy GPS (not a hand held Garmin type, something that connects to the base). I have another video how to place the markers. There are couple ways
hi , i took photo with my dji mavic 2 zoom in DNG format and all my photos have their coordinate but when i import them in agisoft there is no camera in the reference i mean no blue dot but when i check in the reference tab all my photo have longitude latitide and altitude but no blue dot in the workspace
i have photos from ALS and i want to create point cloud, but when i try to add the GCP i dont see them on the Model ! also the Points have no coordinates in refernce page althogh i had the same projection for the photos and GCP etrs89/utm 32N
@@justynajeziorska6205 thanks a lot. Which altitude do you flight with the drône? I used to flight 40 meters and I think it isn't enough because some picture doesn't have gcp. May be that's the reason I've got really bad result in agisoft after the optimalization, the model is curve.. What do you think about that?
Only the vector files can be exported as shp since it’s a vector supporting file extension. Any points, polygons or lines you create on the project (like contours) can be exported as shp. Orthophotos and DSM are rasters, you have multiple file extensions for storage, the most commonly used in GIS software is GeoTiff. I recommend exporting points to las or laz, all the geospatial software can handle it. The models- it depends what kind of modeling environment do you want to bring them in. I found .obj format pretty versatile
Yes, as long as the photos are georeferenced (all the DJI drones do it) or you have at least 3 GCP with x,y,z coordinates (lat, long, alt) the orthophoto will be georeferenced and will have a scale
@@abhishekbaguldesignIt makes a big difference if you need absolute accuracy. Here you have some simple explanation: support.precisionmapper.com/support/solutions/articles/6000187275-benefits-of-ground-control-points
@@Tisijola we used Trimble UX5 I believe it is discontinued now and our model “retired” couple of years ago too. It had a good life with lots of flights
nice video, i would like to see more videos from you, like for instance DEM to DTM processing, volume and area calculations etc. thank you
Thank you for this video, Justyna. Its been very helpful.
Thank you! Personally, I found the video could be louder (if you adapt sound level at the end).
Dziękuję Pani Justyno za super film. Pozdrawiam Serdecznie. Chłop z Mazur :)
Nice video! Thanks Justyna!
Many thanks from Brazil; it was a very didactic video.
Great video, well explained, thank you very much.
Great! There is classification in metashape... You can sever/rate buidings, trees, topo...
Hi, I am a new user of Agisoft, whats the different between importing CSV and Adding Markers?
Hello Justyna,
First, thank you for this tutorial !! Good job !
i have a question about the GCP for georeferencing.
how do you georeference images and integrate gcp with coordinates in another projection?
I explain, I have images with WGS84 coordinates but to improve the accuracy I need to use points in a more precise local projection. Unfortunately when I import these points they are not visible in the model.
And there are no image matches when I click on these points (landmarks).
Ps: sorry for my english i'm french !
Best regards,
Marc
In the reference pane, click "reference settings" icon (the last one in the row) and you can independently choose a coordinate system for your cameras (WGS84) and then the local coordinate system for your markers.
Thank you for your video. Do you know if I can use local/arbitrary coordinate system for the GCP?
Yes, your GCP can be in the local system. But the. If you will try to align the photos to them, there needs to a transformation. As far as I know Agisoft does transformation from different geographic/projected systems but with your local one you will probably just need to stick to it and have the whole project in local coordinates
It's very helpful! Thanks for sharing your knowledge.
Awesome video lady
Thank you for this video! It helped me a lot! You are awesome!
thank you so much it helped me a lot
You use Hight Field, than the mesh looks like towers. If choose arbitrary, be much better. This option (Hight Field) use only in fiel, like sand deposit. Thanks for the video, was great. (escuse for my english)
how can we fix this?
Çok faydalı video olmuş teşekkürler..
Bide Sami reize selamlar...
Thank you for sharing this video. How much time do you spent to take the pictures for this project?
This is just a sample from a longer flight (30 min). I think the flight to cover presented area could be conducted in less than 10 min.
Super filmik. Jestem ciekawy czy końcowe parametry zostały wygenerowane same czy też musiałaś je "wyciągnąć" z programu pojedynczo ? Jeśli same to czy masz jakiś filmik jak to robisz ? Pozdrawiam
Końcowe parametry w raporcie są generowane automatycznie po przejściu całego procesu przetwarzania. Niektóre można kontrolować - np. ustawiając "tie point limit" przy
procesie "align photos", a niektóre, jak na przykład errors, są kalkulowane przez program.
@@justynajeziorska6205 Dziękuje za odpowiedź. Czy ta opcja generowania automatycznego to "Survey Statistic" ? Mam w niej jedynie "camera overlap" i "camera locations" bez "Processing Parameters" ;"camera rotations" i "Grand Control Poit" (pewnie tego ostatniego dlatego że w moim pierwszym nalocie ich nie wyznaczałem :D). Może być to spowodowane tym, że działam na trialu ? Czy też możliwość wygenerowania "Processing Parameters" znajduję się w innej zakładce jak "tools"
@@krzysztofbuczek6832 trial powinien mieć taką samą funkcjonalność jak pełna wersja. Tak się reklamują. Błędy rotacji zdjęć są przedstawione graficznie jako części okręgów. A w przypadku GCP jako kształty i kolory elips
thanks a lot for your share, helped me a lot more than you think LMAO
Good morning, can you tell us witch computer configuration (Sdd nvme, graphic card and others) you are using to this processing in 15 minutes? Thank you
thank you for this tutorial
AYUDA!!! las curvas de nivel se generan en valores (-2, -4 -8 etc...) respecto al lugar de despegue, como hacen para que aparezca la elevación real del terreno (1784 metros sobre el nivel del mar) GRACIAS!!!!
Hi Justyna, Thx. for the detailed explanation. For the updated ver. 1.6 of Metashape, if I want to determine the height of an object (Tree,Building etc.) using the DSM and DTM (as described in the Ver. 1.6 Metashape manual), how can the DTM be determined and then "DSM-DTM= height" be determined ? Thx.
There is a option “filter ground points”. It has 3 parameters describing the angle, radius and conditions to determine which points will be classified as ground. It is not perfect but you can achieve ok results. Then you go to generate DEM and you indicate “only ground points” that should create a “bare earth” DEM. Note that the wholes where the items (vegetation, buildings…) were will be interpolated so you will see flat spots in their places
And then I took it out of Agisoft to GIS software (QGIS and GRASS opensouce and free) and just a simple map calculation of differences between the layers.
If you want to calculate the tree tops w height I recommend using R package ForestTools
Thank You Mam for this video
Good video.
1 - In the Alignment Process you didn´t show the number of key and tie points and how many do we have to use.
2 - In the optimization, Do I always have to select all the coefficients or its depends of the camera that I used?
3 - when I create the Dense cloud, I use HIGH and AGRESSIVE - Am i doing something wrong?
I hope you can help me.
1 - Unless there is a problem with alignment, I go with the default values
2 - No, you don't have to check all the coefficients, unfortunately, I am not an expert on camera optics, but from what I know, the k coefficients are not as crucial
3 - HIGH accuracy for the dense cloud generation requires much more computational power, if your computer is powerful enough and your project not too big, you can certainly go for HIGH. It will just take more time. Using Mild, Moderate or Aggressive depth filtering depends on the amount of the outliers you want to preserve. If you are modeling a surface with complex geometry (like plants) and you want to preserve all the details you should use Mild or even turn the depth filtering off.
Justyna question? in Agisoft metashape preference under the tab GPU do i select all my GPUs and CPUs or what do you recommend?
What is adaptive camera model fitting in align photos?
Great video with clear explanation (5 Stars). I have a problem, after importing the GCPs i tried to filter photos by markers option but the photos are not appearing with any of the points. Plz hlp...!
My first suspect is the projection. Are the GCP measurements in the same projection (coordinate system) as the images?
go into one of the photos, right click and place marker, match your marker to that point. Do it to at least 2-3 photos. It will apply it to others automatically
Great Info, Thankyou so much!!I but i have a quetion, How to mosaic two orthophoto on agisoft metashape??
There is no way to mosaic two independent orthophotos as far as I know. There is a way of processing the imagery in chunks. As a result you have two partial datasets (chunks) and merge it together with the use of ground control points.
Justyna, when you are processing your DEM, are you using Depth Cloud as the source to produce a DSM? I am relatively new to Metashape and trying to use the DEM to create a DSM, capturing both natural and artificial features of the environment
The only way of doing both the DEM and DSM is by filtering the ground points.
Once you have the dense point cloud go to tools and classify ground points. That would allow you to have just ground points based on them you can build a DEM. It is very tricky with irregular or dense vegetation though.
More on classifications in this article agisoft.freshdesk.com/support/solutions/articles/31000148866
Thank you for the video. It is helpful. I am facing a problem. I import the GCP data as .CSV file by using "import reference" but it does not appear under the markers option. i have data for 5 GCP. thanks for your reply
Check your table headers. They need to match the Agisoft lat long and alt. Otherwise you will load empty data
Great video
Hello, nice vid. How do you measure the control points and how do you put them into metashape?
The measurements are done in the field with heigh accuracy GPS (not a hand held Garmin type, something that connects to the base).
I have another video how to place the markers. There are couple ways
hi , i took photo with my dji mavic 2 zoom in DNG format and all my photos have their coordinate but when i import them in agisoft there is no camera in the reference i mean no blue dot but when i check in the reference tab all my photo have longitude latitide and altitude but no blue dot in the workspace
Check if you have the "camera view" activated. There is a small camera button in the toolbar to turn it on
i have photos from ALS and i want to create point cloud, but when i try to add the GCP i dont see them on the Model !
also the Points have no coordinates in refernce page althogh i had the same projection for the photos and GCP etrs89/utm 32N
Try to see if you have the marker view on. There is a little icon in the menu bar
Good day ma'am, it seems I can't activate the build DEM workflow, could you please help me to work on this? Thanks
If you are working in the DEMO mode, building DEM and orthomosaic is not possible
can this be completed on the standard agisoft plan?
How to Export orthofo images larger than 4 GB?
Great info
Pls I need someone who can put me through on this ....I really wish to learn
Justyna, how to get txt data in 1:47 ?? Do you use another app to get exif data?
It is a log that is generated by the drone's autopilot. Most of the drones (all DJIs) have the location data written into the EXIF file.
Justyna Jeziorska so you write it again?or it automatically generated in txt file?
it was automatically generated
Hello, do you re align the photos after optimization with the gcp ?
Photos alignment needs to be performed before the optimization.
@@justynajeziorska6205 thanks a lot. Which altitude do you flight with the drône? I used to flight 40 meters and I think it isn't enough because some picture doesn't have gcp. May be that's the reason I've got really bad result in agisoft after the optimalization, the model is curve.. What do you think about that?
HI MRS JUSTYNA I LIKE WHAT YOU 'RE DOING.COULD IT BE POSSIBLE TO GET A TRAIN ABOUT DRONE WITH YOU?
what are your computer specs waiting for reply
Does the output image have lat-lon values in them?
Yes, it does. It can also be saved in local coordinates.
How can i export it as a .shp ?
Only the vector files can be exported as shp since it’s a vector supporting file extension. Any points, polygons or lines you create on the project (like contours) can be exported as shp.
Orthophotos and DSM are rasters, you have multiple file extensions for storage, the most commonly used in GIS software is GeoTiff.
I recommend exporting points to las or laz, all the geospatial software can handle it.
The models- it depends what kind of modeling environment do you want to bring them in. I found .obj format pretty versatile
Can we load our GCP after building mesh?
Yes, but after you click "optimize the alignment" option, the dense point cloud and the mesh will need to be build again
@@justynajeziorska6205 Thank you and how can I get my orthophoto in CAD format?
Good
Did anyone see her computer specs
Windows 64 bit
RAM 31.81 GB
CPU Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
GPU(s) GeForce GTX 1080
Is it orthophoto with the scale?
Yes, as long as the photos are georeferenced (all the DJI drones do it) or you have at least 3 GCP with x,y,z coordinates (lat, long, alt) the orthophoto will be georeferenced and will have a scale
Is it okay if I create a GCP out of plywood and use the drone as a GPS for it?
Usually, the drone doesn't have a high accuracy GPS on board. You would need something with the possibility of differential correction
@@justynajeziorska6205 Thank you :) it makes sense. Btw, how much diffrence will a GCP make?
@@abhishekbaguldesignIt makes a big difference if you need absolute accuracy. Here you have some simple explanation: support.precisionmapper.com/support/solutions/articles/6000187275-benefits-of-ground-control-points
@@justynajeziorska6205 Hi Justyna, which model of Trimble Drone did you use?
@@Tisijola we used Trimble UX5 I believe it is discontinued now and our model “retired” couple of years ago too. It had a good life with lots of flights
I have my speakers turned up to 100% and cannot hear a word.
i hear it perfect
Me too. There's one way, download this video and play it with a video player.
Yeah its super quiet