Survey like a boss 💪

Just needed to verify. I’ve already done so :slight_smile:

Upsss ok so I’ll start over again. 

@Jaakko, thanks for commenting on Rule 4. Do not hesitate to let us know if you have any questions.

@Raúl, looking forward to seeing what you have. Don’t forget to post a share link to your project on Pix4D Cloud, here.

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Well… after several attempts of achieving the same quality on the cloud processing I think This will be it. 

 

I hope you enjoy it and make 1 place winner!!! LOL. 

 

https://cloud.pix4d.com/pro/project/254825/map?shareToken=9cfbb3c21dbe46b6a172a3f027b745ce

Thx for the correction @Jaakko!

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Good day everyone! Thank you Pix4D for this opportunity, I look forward to any feedback that my post will bring!

Equipment used: Phantom 4 Pro, Aeropoint Propeller (GCPs). 

 

https://cloud.pix4d.com/pro/project/255664/map?shareToken=41ebcef77c214c73ac2758b4a5d95aab

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@Timothy Hi Tim, I’m just curious to how those GCP’s that you mentioned actually work in connection to your drone? (Or are you just using them as any ordinary target point and manually survey their Position?) I checked out their web site very quickly so i didn’t have time to analyse it in depth…please feel free to fill me in :slight_smile:

Can you explain the quantitative criteria and where we can check that value.  Or at least explain how to achieve a low number please?

@Miodrag

 

Great Question, these points actively record GNSS data while the flight is being conducted. That data is then stored in a cloud application that outputs a .csv file that is downloaded and can be transferred into Pix4D’s GCP/MTP Manager dialog. These targets eliminate the need for manual survey equipment.  

@Bob

From the automatic tie points generated in Pix4Dmapper (after initial processing), we take subsets (reduce a bit the number) evenly and check the uncertainty of the points in all three directions. This is similar to the concept that we see the error ellipsoids for GCPs or MTPs, which indicates the errors introduced from various directions. 

 

_ For self-assessment: _

If you use the latest preview, you may find the *_result_point_uncertainties.csv file under \1_initial\params. 

Ideally, the Sx, Sy, Sz should be centimeter level (the values in the file are in meters.)

And if you create a graph of the values, it should be very skewed and close to a half-normal distribution, and the narrower the better:

Without the use of GCPs, you may get something like:

In any case, we will check the values as well as the shape.

 

_ For improvement: _

More overlap, better image quality (minimize shadows and over/under-exposed images), and adding some MTPs would all help. If GCPs or MTPs are added, make sure that you click on the images with very different angles (longer distance or various directions.) 

An example of change by just clicking on more images of the MTPs: 


 

Even better, use the GCPs or RTK systems on board to provide better initials to the software.

 

With everyone the best luck on the project!! 

 

OK…so this is pretty much embarresing. I’ve been flying my drone around Kuwait for the past 3 months, working on my survey, lord only knows how many KM my little bird flew. Today of all days that i finally had time to survey a part for this competition, I get the “camera optimization” being at a horrible 22.5%!

Although i have done many a project, I am very very new to the whole cloud upload system. I do all my work on the desktop verision. With that being said, when i uploaded and looked at my project, nedless to say i was very dissapointed at what the final 3D outcome looked like. I know how to manualy fix this problem in my desktop version, but how does one fix anything when it’s “up in the cloud” ?

On a side note…does the competition allow for some rule bending? What i would like to do is submit another part of my survey that is some distance away from where I placed my “Logo” today :frowning: Can I upload that surveyed area and where today’s logo was surveyed? So in escence it would look like a two part project…

I’ve blabbered enough…im out

Advice is very welcome :slight_smile:

We recently performed a week of UAS training for a few new field crews within our organization in beautiful Fort St. John, BC, Canada. Our submission for this contest is the orthomosaic from one of our training flights. One of our instructors trudged through the deep snow to create the very cool (literally) Pix4D logo! Can you tell we are a bunch of surveyors? :wink:

The quality of the aerial mapping/survey will not be the greatest because of all the snow in the (only) testing area we had available to us, but we were happy with the training and the results!

https://cloud.pix4d.com/pro/project/256530/map?shareToken=c4018478690d4e4991b6273d693423c9

We hope the other contestants enjoy viewing our project.

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Well following the comments I’d like to share the link to the quality report of my submition so you can share your thoughts of it. 

https://1drv.ms/b/s!Aj6_gQ0IqDxMjdFAxQDxe6ipOg1gRg

Thx for the info @lisa I coudnt find the values you share on the coud proceesing but I think it wasent so bad on my project. 

Raul, seems like a low density point cloud for such an area and not enough overlap in my opinion.  But this really isn’t the thread to get into the details of optimizing flight planning and Pix4D settings.

I prefer my 2D keypoint matches to look like this:

Speaking of surveying like a boss. This job I am posting helped us save time in the field for the ALTA survey we did on the site. We set 9 GCP and multiple check points. We used the orthophoto to trace in the pavement striping and edges of pavements and curb. 

https://cloud.pix4d.com/pro/project/256382/map?shareToken=9f0b90ae6e6049e99a92ee448e132aef

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@Marcus:

Could you share quality report?

I submit to thee my humble survey. What you see before you is only a speck of what I’m currently working on. It’s a 38km highway that needs to be surveyed and this is just a sneek preview of it. I didn’t have time to resurvey some more interesting parts of it as the work load is overwhelming atm. No one from the admins has replied to my previous comment so I’ll just have to do with what I have for now, hopefully I’ll have time later on to submit a bigger project in anothe HoF post.

Long story short, everything you see in the picture is exported to a third party software and then finalized in Autocad for submition. One step I allways have to do is convert my coordinates in the EPSG options number to KUDAMS as we deal here in local coordinates and I can’t use the UTM ones. No GCP’s were added initialy because I do my GCP aligning and fixing in the post processing part of the project, meaning we collect our GPS data from know points on the ground (using RTK) and later on add them into the project…reptimize…reprocess and voila…I have 2~3 cm precission surveys :slight_smile:

Unfortunately no snow like @Jaakko to have fun in drawing logos :wink: i facepalmed my self when I realized the logo got over exposed due to too much sunlight, hope that doesn’t kill my rankings :stuck_out_tongue:

https://cloud.pix4d.com/pro/project/256877/map?shareToken=0f8dfa39402d41cf826bbff0d51b2f31

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I’m interested in joining the challenge.  I used a DJI Phantom 4 Pro to capture an abandoned movie theater and nearby grounds.  All of the models submitted, to this point, has impressed me.  For the groups consideration,

https://cloud.pix4d.com/pro/project/257198/map?shareToken=8851d086137f4112975a1facb1080376

Regards,

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Hola amigos!
Me encantaría unirme a este reto, les dejo mi aporte, es el centro de un pueblo mágico llamado Tecozautla, ubicado en el estado de Hidalgo.
https://cloud.pix4d.com/pro/project/257407?shareToken=61b6c4ddb09c4311b022605d32833cf5

También les dejo el link para el reporte de calidad:
https://1drv.ms/b/s!Aj6_gQ0IqDxMjdFZIBypoPcFEOz63Q

Muchas gracias!!

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Hello Pix4D team,

 

attached is our Pix4d Challenge project.  @Pix4D    #Pix4Dchallenge. The social media posts will go out the next few days.

 

https://cloud.pix4d.com/model/project/257598/mesh?shareToken=9f7b34ea7d3b4751a3c83c60f060b944 

 

Looking forward to receive your feedback.

 

Best

 

Gautier

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Hi, 

Here is my submission for the Challenge. 

We do surveys like this where i work primarily for Incident reports to help see the real picture when something goes wrong. (No Incident this time flight was purely for fun). It was extremely windy on the day for this survey. I had to fly it manually and take the photo’s I was not trusting any apps. 

Phantom 4 Pro used.

https://cloud.pix4d.com/pro/project/257829/map?shareToken=d2c9cf2b17b6454fa7dbdac1021cf3f6

 

Here is a link to the Quality Report. 

https://www.dropbox.com/s/il7p4os9jzjgg5z/CAT789_Quality%20Report.pdf?dl=0

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