The Beaver Grove Sign



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Synthy 100%
Views 764
Favorites 3
Photos 717
Date Created 2/14/2010

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(8) Over 1 year ago
Nathanael. I'm starting to think you are the absolute king of the pointcloud. (Although perhaps "Prince of the Pointcloud" might be more alliterative). Nice work.
By the way...I appreciate your comments last week about the crazy embedded slogan. I can't find an email address to contact you, but I'd love to chat if you have time. Drop me a line at the SynthAssist "Contact Us" page or give me a call on the main line if you can. Best, Gabriel.
Nathanael Over 1 year ago
Gabriel, thanks for the compliment, although others have certainly inspired and informed everything I've done. If you haven't already, you should definitely see LostInTheTriangle and EdLee's works. I learned from Lily, inBerlin, Ultrasound, Tan_Nguyen, and them what was possible.

It's also worth noting that although orbits (my favorite method for pointcloud generation) are extremely effective to that end, if you want any sort of high detail in the pointcloud, you will directly limit the area you can fit in a single synth (the only technological limit being the number of matched features able to be held in RAM during scene reconstruction), as well as including so many photos that navigation becomes something of a chore (certainly without highlights). This may be less of an issue after we have synth linking in our hands but is a real limiting factor for the time being.

I'll be in touch.
Nathanael Over 1 year ago
I would also point you to sir_ivar as someone who is interested in Photosynth primarily as a modeling tool.
michaeldenis Over 1 year ago
hey Nathanael "Prince of Point Cloud (and Forums)" and,

Impressive, impressive work.. Your point cloud here must be among the most dense that we've seen for real world objects (other than rocks). Like you say, though, the RAM limitation is a pain, I imagine that you'd have liked to go in *another* level of detail, but were held back by this limit.

Nathanael, do you know if the RAM limitation is on the user's end or on the's synth tool's end? Is this limitation within or outside of our control?

Good work, by the way, I just jumped over here from your Capital synth. It's interesting to contrast the differences between an area where the lens can command almost complete control of the perspective, as in this synth, to where the lens must move within the synth, as in your Capital synth.

[notes "Synch Linking" as a holy grail]
Nathanael Over 1 year ago
Hi. Is it alright for me to just call you Michael?

In this particular case I was nowhere near the RAM limit. I was out for a walk with my family and one of my brothers had to be at work soon, with the rest of us heading back to my parents' place to visit with my other brother who was in town for the weekend, so it was a time limit more than anything else. I would have loved to tackle those upper branches on the sapling here to really complete the basics of this synth.

The takeaway lesson is very simply that the resolution of the pointcloud (just like the resolution of the input photos) depends fully upon how much texture you fill your lens' frame with. I completely agree that being able to focus on a single individual object at a time and depending on synth linking is the way of the future.
Nathanael Over 1 year ago
As to the RAM limitation, the synther is a 32-bit application, so there is a finite amount of RAM that it can address. To be perfectly honest, it is unclear to me whether running a 32bit application in a 64bit operating system changes anything, but a 64bit OS certainly can address more memory per application than a 32bit OS. Certainly it does not give us the benefits of an actual 64bit synther.

In any case, if a user's amount of RAM is below the maximum amount that the synther is capable of utilising (taking into consideration the fact that Windows itself and whatever mandatory background services needed will be running alongside the synther, each requiring their own RAM), then they are constrained by their own hardware.

If, on the other hand, your amount of RAM is significantly greater than a 32bit synther can address, then your synths are being constrained by the fact that the synther is 32bit instead of 64bit.
Nathanael Over 1 year ago
For more notes on all of the memory constraints from the Photosynth team themselves, read the comments in the first, third, and fourth of the four links posted under Nathanael.Lawrence in gavindjharper's "Biggest Synth Possible" thread in the forum.
Nathanael Over 1 year ago
One last note: if you're keen on pointclouds of natural objects, check out my Orbital Propulsion (Gravity Assist) synth here:

I had been kicking around the theory that shooting orbits as the primary pattern of photography would most efficiently yield the greatest returns in terms of pointcloud reconstruction for some time at that point but had yet to make myself actually walk outside and find something worthy to shoot.

The results that morning were most definitely a turning point for me and, although I was not nearly methodical enough in my circling of each bloom, it hung together. The results of taking my time and using a tripod to shoot would, I think, greatly increase the clarity of each flower. The stems are another problem altogether, simply because they are so small, but it's probably one of my biggest pointclouds.
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