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K.D Stanhope's Discussions
Photogrammetry Application
Started this discussion. Last reply by Dries Raymaekers Jun 3, 2012. 87 Replies 1 Like
Hi there everyone!I'm really quite new to this, all of this. In fact, this is my first post. I first became interested in this project entirely by chance; I happened upon it while looking for small…Continue
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Alpo Hassinen replied to K.D Stanhope's discussion Photogrammetry Application"Look also this blog:
http://diydrones.com/profiles/blogs/georeferencing-pictures
"
JP replied to K.D Stanhope's discussion Photogrammetry Application"Hello,
If you have access to a linux box or cygwin environment on windows you can use exiftool to geotag the images with great results. I posted a bunch of different how-to for doing this here: http://dronemapper.com/faq
There is a great…"
Dries Raymaekers replied to K.D Stanhope's discussion Photogrammetry Application"I bumped into the same GPS time stamp issue which is mentioned in this topic. What I can deduct from the logs is that:
The time stamp in the *.log files are in ms, UTC after midnight. This time is send along with the GPS signal, calculated based on…"
Richard replied to K.D Stanhope's discussion Photogrammetry Application"@Luke, Again, can't seem to reply to the post below - The Skywalker tail kept breaking! I just found it very flimsy. If I accidentally knocked it on anything it would just break. I'm talking about the Horizontal Stab, not the actual tail…"
Luke Joseph replied to K.D Stanhope's discussion Photogrammetry Application"@ Richard, Re. the weight, Ok that's not so bad then. Re.the cameras, as long as the fuesalage doesn't block the field of view, that's a good solution. Perhaps the camera could be offset mounted so it hangs below the belly…"
Richard replied to K.D Stanhope's discussion Photogrammetry Application"@Luke, Replying to your below post (as i cant seem to reply to it directly.)
In my opinion there are no real weight issues with using the FY21AP to stabilize the camera, as the entire thing only weights 22 grams, and uses minimal power.…"
Luke Joseph replied to K.D Stanhope's discussion Photogrammetry Application"Hi Richard, sorry about that, didn't look close enough. I agree with James, it would be a shame to put in a separate device just to stabilise a gymbal, especially given the weight issues which now seem to be arising. Better to wait till its…"
Richard replied to K.D Stanhope's discussion Photogrammetry Application"Hi Luke, It is working in both Axis in the Video I posted, maybe its just not very clear. But I am not using the Arduplane code to stabilize the camera Gimbal, I am using another stabilizer called an FY21AP. I've been told that this…"
Luke Joseph replied to K.D Stanhope's discussion Photogrammetry Application"@ James and Richard, I had another look at the video, isn't it working in the roll axis and not the pitch axis? I thought it was the other way around? Or can you just pick one axis? As most aircraft can be made stable in the pitch axis with…"
Luke Joseph replied to K.D Stanhope's discussion Photogrammetry Application"@Richard
Good one, I'm doing the same, I follow this thread closely"
Richard replied to K.D Stanhope's discussion Photogrammetry Application"Posting Results: I had no luck with the Above! I am instead going to use my FY21AP unit to stabilize the Camera gimbal. Until the Arduplane code has it built in!
Here it is in action...
http://www.youtube.com/watch?v=4_0LwP1rIpM"
jim C. replied to K.D Stanhope's discussion Photogrammetry Application"as is the procedure to set the time of the camera with the time of the file. tlog?as the time of the file. tlog?
jim"
Richard replied to K.D Stanhope's discussion Photogrammetry Application"Hi James, Cheers for your help thus far, It has been very useful, and i think have just enough info to get cracking!
Thought i'd mention that you can configure APM 2 for Pitch and Roll stabilization, as mentioned above, by following…"
James replied to K.D Stanhope's discussion Photogrammetry Application"sorry for my syntax..
I ment, that, yes, you need as vertical as possible photos for easier post prosessing and results. But gimbal stabilization for 1,2 or 3 axis is only avalable for copters, Arduplane users have to wait a little…"
Luke Joseph replied to K.D Stanhope's discussion Photogrammetry Application"@ Richard and James
Hi Guys, as a Newbie I'm finding this thread extremely interesting, if not confusing, due to the plethora of acronyms. James could you explain further ?
1. Take a series of photographs facing vertically down from the…"
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