Comment by Martin Poller on November 1, 2011 at 8:36am

The spreadsheet is here, http://diydrones.com/forum/attachment/download?id=705844%3AUploaded..., it's very good too.

Comment by Raytrace Nomad on November 1, 2011 at 8:41am

thanx for your help.

Comment by Nick Sargeant on November 1, 2011 at 9:18am

Nice James. Good to see that you're in the air.

You'll have to come to a Perth FPV meetup and show off your kit :D

Comment by chet walker on November 1, 2011 at 9:57am

excellent work! This really looks great.

Comment by Edson Nobrega on November 1, 2011 at 10:26am

Nice job!

Could you explain how to generate the WP from the spreadsheet? I could not understand how it works.

Comment by Tom Milnes on November 1, 2011 at 12:30pm

Hey everyone, I'm Tom, the CTO of Hypr3D.com.  Just want to say "Thank You!" to James for the excellent use of our service.  For others who are interested, the ideal overlap between images is about 1/2 an image above, below, left and right.  That way any given point on the ground is seen in about 5 images.  This allows a strong model to be built in a reasonable amount of time.  Less overlap results in spotty results, and more overlap limits the amount of area that can be covered by a flight.  We're happy to work with Michael & Martin to further develop the planning algorithm for optimal coverage and timing!  Again, James, awesome work!

Comment by Kirill on November 1, 2011 at 1:45pm

Good job, James! Thanks for sharing!

I did the same with my plane, camera and APM this summer. It's great!

Comment by Alex Funi on November 1, 2011 at 3:11pm

Martin,

CHDK is very easy to set up a trigger with a voltage pulse on the cameras USB.  Just hook this into your APM relay.

Comment by Tom Milnes on November 1, 2011 at 4:14pm

DIYDroner Jeff Taylor just sent me a thoughtful note about Hypr3D.  His questions were really good ones so I'm re-posting them here in case there are others who are interested.  Thanks again to Jeff for getting in touch!

    "How many images should be used for a reconstruction?"  Generally speaking, 30 images is sufficient for a good model.  If you're covering a VERY large area then you may want as many as 75, but this is unusual.  Once you have enough overlap for each point on the ground to be visible in 4-5 images, then adding more images doesn't help the reconstruction.  Our software will still try to incorporate the extra images, but the only effect is that you'll have to wait (much) longer for your model to be ready.

    "Does Hypr3D work with wide-angle cameras like the GoPro?" Yes, we have built a model or two with a GoPro camera.  That said, the distortion caused by the wide-angle inexpensive lenses doesn't contribute to a strong reconstruction.  A quality point-and-shoot (even a small one like James' Canon IXUS 50), is generally a better choice.  DSLRs are the nuclear solution, but are overkill in many cases.

    "Why is this service free?"  Well, that's a good question.  It's free for now because we're just getting started and we love seeing what people do with the technology.  But hosting, development and processing are expensive, and get progressively more so as new users join.  We're trying to understand what the best avenues are for generating sustainable revenue while allowing the most people access to this fun technology.  Maybe in the beginning this means advertising revenue.  Maybe it means pay-for-3D-printing.  We're not sure but we're working on it.  We welcome with open arms your thoughts and suggestions!

Cheers,
Tom
CTO, Hypr3D.com

Moderator Comment by Gary Mortimer on November 1, 2011 at 5:19pm

I just chucked some pictures I had hanging around to see how this service compared to photosynth and I am impressed.

Heres the model https://www.hypr3d.com/models/4eb0662b01b5a3000100001c

 

and in Photosynth http://photosynth.net/view.aspx?cid=df2bf33c-c817-4bbf-9a53-8f93659...

 

It only used half the images I added but then I did'nt select them in any way. I have another little project that I would like to try next in hypr3D before trying the 15km of river that I have images of!

 

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