sir_ivar


Palmitopamba: Tola 5 KAP
Palmitopamba: Tola 5 KAP
sir_ivar (Over 1 year ago)
A tutorial for creating a digital elevation model from this synth is available at http://palentier.blogspot.com/2010/12/how-to-create-digital-elevation-model.html

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Mikrokopter Synth
Mikrokopter Synth
jimcseke (Over 1 year ago)
Sorry to bother you, but what is the nadir issue?

sir_ivar (Over 1 year ago)
@K The camera is a very beat up Canon A590 running CHDK. Still working out the kinks in the system. The vibration of the hexakopter is causing a lot of blurry photos. Another week or so of test flights and I'll be ready to map archaeological sites with it. If the nadir issues could be compensated for, that'd be awesome! -Mark

rcman (Over 1 year ago)
good job mark happy flying............

K (Over 1 year ago)
Amazing! What kind of camera did you use? Unfortunately the synth seems to suffer from the same nadir issues that plague the KAP (kite) synths. I wonder if we can do something about that.

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Tinaja Blanca Petroglyph Site
Tinaja Blanca Petroglyph Site
PGRic (Over 1 year ago)
Definitely a cracking methodology you're developing there Mark. I'll have to try once again to get my head round the vagaries of Meshlab.

sir_ivar (Over 1 year ago)
PGRic, the conversion turned out nice! I've updated the video with this one: http://www.youtube.com/watch?v=_XgmqUYiwAg -MW

PGRic (Over 1 year ago)
Excellent find and synth Mark. How did the conversion go? I've seen the You Tube clip of the photogrammetric model.

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Cerro Chino Petroglyph Site (Large Panel)
Cerro Chino Petroglyph Site (Large Panel)
sir_ivar (Over 1 year ago)
Here is an animation showing the same data: http://www.youtube.com/watch?v=6kECuaTZ8G8

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Photosynth to DEM - Test
Photosynth to DEM - Test
Nathan.Craig (Over 1 year ago)
This is inspirational! It completely rocks my world.

jimcseke (Over 1 year ago)
Just popped in to wish you and yours a Happy and Safe Holidays !!!

sir_ivar (Over 1 year ago)
Nathanael, thanks for the suggestion. I'll look into the copyright watermark. I should probably just make it all public domain... -Mark

Nathanael.Lawrence (Over 1 year ago)
Just a suggestion, Mark, but you may want to fill in the 'Author' tags of your photos with Adobe Bridge, Microsoft Pro Photo Tools, or Windows Live Photo Gallery. That way your CC Attribution license displays your name next to it.

Nathanael.Lawrence (Over 1 year ago)
Fascinating work, Sir Ivar. I'm glad to see someone creating synths with such precision. For my fellow visitors: After you click on part of the synth, tap the [P] key to switch to point-cloud-only mode, then hold the [S] key to back away from the surface of the ground. Once you back up a little the point cloud looks almost solid - pretty incredible!

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Star Cave 2 - Guam
Star Cave 2 - Guam
jimcseke (Over 1 year ago)
Looking forward to seeing your next project. Thanking you in advance for the upcoming post.

sir_ivar (Over 1 year ago)
Jim, glad you liked the Star Cave project. I am working on a very neat project related to this site. I'll send you a post when it's online. Thanks for all the nice comments and glad you enjoyed it!

jimcseke (Over 1 year ago)
P.S. Is there a possibility that you are considering 3d modeling this synth in the same way you did with "Another Tres Yonis Synth" I love the idea of photographs becoming 3d point cloud, and then transformed into an even more immersive experience. I am slowly reaching 50 years old and thankfully have not lost my love of technologies (old or new). Keep on synthing

jimcseke (Over 1 year ago)
I have viewed your other synths, and read some of your comments in the forums. I gather from that information, that your profession is archeology. It seems there are people from varied backgrounds who use and enjoy this site. I am an electrician by trade, but i've always been facinated by new and old technologies. Your profession and this site are a logical mix. I believe that discoveries, new or old, need to be shared with everyone in a way which draws the onlookers in. To experience in some way, a sense of place and time. Before I read your comment on this synth, I "travelled" through with photo and pointcloud. The photos were great for detail, and the point cloud was amazing. I loved the feeling of almost being in a dimly lit cave. The difference between photosynth and video/photos is that it is interactive. If I want to see whats behind that rock, I can navigate. I am looking instead of being led. Thank you for taking the time to share this.

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Another Tres Yonis Synth
Another Tres Yonis Synth
PGRic (Over 1 year ago)
sir ivar, do you have any laser scan data to compare? I was involved in a rock art project for 3-4years and this involved scanning several carved stones. I might be able to get hold of the data. I’d need to capture additional imagery for a comparator synth though, we just have photogrammetric stereo pairs and the resultant point cloud wouldn’t be dense enough. I’ve not worked directly with Jim Chandler, but he did advise the above project and calibrate the cameras. Some of the projects work fed into his research on low cost photogrammetric approach and camera calibration. Is the email on the You Tube movie still current? If so, I’ll drop you a line. Cheers Rich

sir_ivar (Over 1 year ago)
PGRic, I've been pretty happy with how it has turned out so far. I'd like to compare the synth point cloud to a laser scan to compare accuracy. I'd love to see your work. Maybe we can compare notes. Are you working with Dr. Chandler by any chance?

PGRic (Over 1 year ago)
sir_ivor, hope you don't mind, but I've copied the link across from your Meyers Spring synth: http://www.youtube.com/watch?v=9-sjaUjrTnw I’ve been involved in recording UK rock art for about 6yrs, the last 3or4 helping to develop close range photogrammetric methodologies. I’m just absolutely blown away by your work here – I thought extraneous points within the cloud would prevent an accurate surface being produced. Many, many thanks for this.

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Meyers Spring Pictograph Site
Meyers Spring Pictograph Site
billfeely (Over 1 year ago)
very nice ! check out my synth's of Horseshoe Canyon with "The Great Gallery" NE of Hanksville Utah and my other of Rochester Panel east of Castle Dale Utah. -Bill

eah (Over 1 year ago)
gorgeous! there are some still shots in here that are absolutly breathtaking - canvases really

PGRic (Over 1 year ago)
this is stunning.

David-Photosynth-Team (Over 1 year ago)
This kind of an environment is what Photosynht was made for. Well done!

sir_ivar (Over 1 year ago)
If you find this work appealing you may find my other application of photosynth interesting: http://www.youtube.com/watch?v=9-sjaUjrTnw I creating 3D models of archaeological sites from Photosynth point clouds. Check out the video link above to see.

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Prehistoric Axe
Prehistoric Axe
sir_ivar (Over 1 year ago)
Tony, thanks for the interest. Once I'm done testing, I'll add the details. I wasn't paying attention and should have made it UNlisted. -M

TonyErnst (Over 1 year ago)
Can you add any details on how old this is, where it was found, etc? Thanks!

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Map Cave (Mimbres Valley)
Map Cave (Mimbres Valley)
sir_ivar (Over 1 year ago)
You can see the point cloud converted to a surface in this low resolution animation: http://www.youtube.com/watch?v=RqV6v_0sxFg -Mark

TonyErnst (Over 1 year ago)
the point cloud on this is incredibly cool!

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San Augustine de Callo
San Augustine de Callo
Nathanael (Over 1 year ago)
Stellar! Would you mine geotagging this?

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Little Stonehenge Site (Aerial Photography)
Little Stonehenge Site (Aerial Photography)
dariusmonsef (Over 1 year ago)
When logged in and viewing your own synth you can change the display setting from public to unlisted. :)

sir_ivar (Over 1 year ago)
I had actually thought I had this set as unlisted... Oh well ;) I normally do KAP but there wasn't any wind so I had to use a small blimp (BAP). I was aiming at a high density point cloud. You can see the low resolution meshcloud here: http://www.youtube.com/watch?v=k-elzL-ZOhY

dariusmonsef (Over 1 year ago)
P.S. How was this shot?

dariusmonsef (Over 1 year ago)
Wow, the point cloud is almost a solid photo.

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