Vertical video with associated telemetry

Hello,

I am making a thesis about a system to auto land a quadcopter on a station based on a visual homing system.
I have already made some studies on the problem, and used Youtube footage to test some hypothesis. The problem is that visual homing is too computationaly expensive to be done in the air without some conditioning of the images with telemetry information.

The Youtube videos I have found are below. The problem I found with the Youtube data is that I think measuring the parameters by hand would a bit tedious. I also thought of using satelite data which has scale and orientation data but I am not sure if I could get the accuracy I needed near the ground.

Vertical FPV Highland and Yucaipa CA

Gopro looking straight down on the skywalker fpv

As an example of my approach:

* In a certain position I take a vertical picture of the terrain below.

* Correct the scale of the feature points I am looking for with altitude data.

* Correct the orientation of the image with the orientation data.

* Detect and match the feature points

* Take a course of action based on the matched points, like point correlation

Without this corrections the algorithms necessary would be unwieldy in the air.

So what I am asking is:Does any body know, or have footage of a flight with the camera looking down and the associated timestamped telemetry?

How could I simulate something like this without acquiring all the equipment beforehand.  If somebody is available to do this as a job I am open to offers.

Thank you a lot and I am open to suggestions.

Paulo Neves

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Modify firmware for the flow meter, so it homes in on a blinking led. I hadn't even had time to start on it. Maybe you do.
    • Do you mean the openCV example?

      I think I can get the recognition going but i would really like a log of a flight with the photos or video to validate the recognition.

      Thanks for the reply.
      • you can take as many photos/video you like, but that's another story, the flowmeter or is still the way to do the job.   px4flow could store images too.

        • Ahhh wow. I had no knowledge of this. Thank you a lot. I will investigate the px4flow further because it would simplify the navigation considerably. From your experience what is the position accuracy that is achievable at very low altitudes?

          Thank you a good lot!
          • It should not be a problem to land with precision of <+/-5cm.  the resolution is better than needed, but the final landing will be affected by ground effect /downwash turbulence, which will make it harder to compensate for movement in the final moment.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @chr1sa: The next @DIYRobocars virtual AI race is tomorrow morn at 9:00am PT. You can watch live on Twitch https://www.meetup.com/DIYRobocars/events/275268196/
13 hours ago
DIY Robocars via Twitter
New version of Intel OpenBot! This resolves many of the issues with the first version, including a much smoother tr… https://twitter.com/i/web/status/1352395636369313798
yesterday
DIY Drones via Twitter
Using ArduRover with an RTK GPS https://ift.tt/2N9I3RO
Tuesday
DIY Drones via Twitter
Monday
DIY Robocars via Twitter
Monday
DIY Robocars via Twitter
Jan 15
DIY Robocars via Twitter
Jan 15
DIY Drones via Twitter
Jan 14
DIY Robocars via Twitter
RT @Heavy02011: @diyrobocars : A Home-brew computer club* for Connected Autonomous Driving on Jan 23rd, 2021 https://www.meetup.com/Connected-Autonomous-Driving/events/275728684/ #Meetu…
Jan 14
DIY Robocars via Twitter
Jan 14
David Hori liked Isabella Domi's profile
Jan 12
DIY Robocars via Twitter
RT @Heavy02011: ⁦@diyrobocars⁩ Autonomous Driving Assembly at #rC3. join us at https://rc3.world/rc3/assembly/diyrobocars-f1tenth/ ⁦@f1tenth⁩ ⁦@DAVGtech⁩ ⁦@DWalmroth⁩…
Jan 11
DIY Robocars via Twitter
RT @chr1sa: New car designs coming for our next @DIYRobocars @donkey_car virtual race on the 23rd. Choose any one you want at race time Le…
Jan 11
DIY Robocars via Twitter
RT @RoboticMasters: Thanks to @EllerbachMaxime and the Sydney Uni Capstone Students the @donkey_car @diyrobocars simulator is getting a ma…
Jan 11
DIY Robocars via Twitter
Jan 6
DIY Robocars via Twitter
Dec 28, 2020
More…