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RebelNight

Base Transceiver Station modeling

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Hi, I would like to know your tips on taking pictures of BTS (Base Transceiver Station). What programs do you recommend? I have heard many advantages about pix4d. I currently use Bentley Context Capture and it works poorly. Any tips on how to take pictures?

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ContextCapture is about the best photogrammetry software there is.  If your not able to create a good model in CC then your probably not doing the collection correctly. 

This is a model we did with ContextCapture and the ship was at see.  

Pix4D is a good starter program to figure out the right techniques for collecting data.  

 

670B33FA-A455-45C8-B31F-2D7B23E4127A.jpeg

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Hence the question about techniques. We make orbits from top to bottom, in addition, vertical photos of each section. Pictures are taken about 4 meters from the tower by the Yuneec H520 drone. In addition, we take a lot of pictures of the place where the antennas are hung.

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There are the basics, keep your shots below the horizon, figure out the right side and front overlay etc..  But it’s more about having more angles than overlap.  

 

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On 8/28/2019 at 11:17 PM, Av8Chuck said:

There are the basics, keep your shots below the horizon, figure out the right side and front overlay etc..  But it’s more about having more angles than overlap.  

 

I will take photos from the drone for some time and share the result of the work. Do you recommend any exact CC settings for BTS? There is a slight fear, because last time the tower has drawn drone interference.

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On 8/28/2019 at 11:17 PM, Av8Chuck said:

There are the basics, keep your shots below the horizon

 

Referring to this sentence, do you recommend taking pictures on a camera angle of about 45 degrees?

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It appears that your orbiting and shooting obliques, so yes. 

We model very large utilities, this is a section of a 110 acre facility http://162.144.22.103/models/500kv/#%2F you need to view this on a laptop or desktop; doesn’t display correctly on smart devices.  

the altitude we fly is mandated by the amount of energy in the station, we need to remain 30ft from the highest energized object.  In this case that meant the lowest we could fly is 170ft. We flew this site twice from 170 and 200ft, both Nadir and obliques and about 12k images. 

If your collecting the data and processing the model you’ll start to get a a better sense of the right technique for collecting the data than someone who just collects and then sends the data to A service like DroneDeploy.  It’s an iterative process that will continually improve.  

Also, don’t render the entire model.  After error triangulation pick a small region of interest and render that to make sure everything is aligned correctly.  Since our models can take weeks to render we test a lot before rendering. 

 

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On 8/31/2019 at 5:09 PM, Av8Chuck said:

It appears that your orbiting and shooting obliques, so yes. 

We model very large utilities, this is a section of a 110 acre facility http://162.144.22.103/models/500kv/#%2F you need to view this on a laptop or desktop; doesn’t display correctly on smart devices.  

the altitude we fly is mandated by the amount of energy in the station, we need to remain 30ft from the highest energized object.  In this case that meant the lowest we could fly is 170ft. We flew this site twice from 170 and 200ft, both Nadir and obliques and about 12k images. 

If your collecting the data and processing the model you’ll start to get a a better sense of the right technique for collecting the data than someone who just collects and then sends the data to A service like DroneDeploy.  It’s an iterative process that will continually improve.  

Also, don’t render the entire model.  After error triangulation pick a small region of interest and render that to make sure everything is aligned correctly.  Since our models can take weeks to render we test a lot before rendering. 

 

Can you upload the files to the server again? I didn't have time to see much. 

Currently, after opening the link, I get a message: Could not find the scene to load.

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