Forum : Photosynth Lounge

Photogrammetric, Oblique Image Stitching, Pets Dressed in Clothes Photos… this is a place to chat and share stories with your fellow Photosynthers. Not all topics have to be about photography, this is a place to relax and chat about whatever you fancy.


Topic: Windows Vista and Windows 7 users: Please update to Internet Explorer 9

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Nathanael (Over 1 year ago)
For my fellow photosynthers who are using a modern copy of Windows, please update your version of Internet Explorer.

Microsoft just released version 9 (a free download) which is much more powerful than any previous version of Internet Explorer and in some ways more powerful than other browsers like Firefox and Chrome.

You can download it in a variety of languages at this easy to remember link: http://bit.ly/fetchie9
brakar (Over 1 year ago)
SynthExport http://synthexport.codeplex.com/ and Henri Astres PhotosynthToolkit just stopped working both. I tried to install Internet Explorer 9 (even if I don't like it, didn't know what that might have to do with Photosynth) on my Win 7 64bit laptop. Only thing that happened was I filled up my hd, MS Explorer freezed, and none of the exportes still worked.
Nathanael (Over 1 year ago)
Hmm. I don't know what to say.

Both SynthExport and PhotosynthToolkit are still working for me, so I don't think it's anything to do with IE9. 

I've been using the Internet Explorer 9 platform previews and beta since last year and the release candidate and now the final release this year and they never interfered with any of the toolkits working for me.
michaeldenis (Over 1 year ago)
Thanks for the recommendation, Nathanael.  (:
I will upgrade upon arriving home..

Perhaps this thread would be an appropriate place to post the "why" of your recommendation relating particularly to Photosynth.  I for one would be highly interested to hear what you'll have to say..
Nathanael (Over 1 year ago)
Michael, with regards to Photosynth, there's no immediate benefit yet, but the more people who have a browser that supports CSS3's 3D capabilities, the sooner the Photosynth team can consider rewriting the Photosynth viewer to not even need a browser plugin to do 3D graphics. 

Once Firefox 4 is released, I believe that all five major browsers will support CSS3's 3D abilities, but there will be a difference in performance among them. From what I've been able to tell, IE9 uses the GPU more consistently. 

The big difference between the performance of the Direct3D Photosynth viewer and the Silverlight 2, 3, and 4 Photosynth viewers is that Direct3D was using your GPU and the Silverlight viewer was only using your CPU. 

Being that I am not an expert in 3D graphics, I can't say that CSS3's 3D abilities are equal to DirectX 8's, but I am interested to see what the Photosynth team is able to do with the new generation of web browsers.
Nathanael (Over 1 year ago)
If you watch this recent video from TechFest 2011: http://channel9.msdn.com/posts/TechFest-2011-3D-Scanning-with-a-regular-camera-or-phone (or the slightly earlier one from Gizmodo: http://gizmodo.com/5769752 ), you'll hear Sudipta Sinha say that technologies are coming which will enable you to do 3D graphics in the browser. 

One of those technologies is CSS3's 3D kit which IE9 will turbo charge, another is Flash 11's GPU accelerated 3D (codenamed Molehill), another is Silverlight 5's GPU accelerated 3D, and the last is WebGL - an implementation of OpenGL (circa 2002) for the internet (although Internet Explorer 9 does not support WebGL).

If you look into what's being done for that object movie demo on the phone, they're using Photosynth on the website to figure out the camera positions, then doing dense reconstruction (think PMVS2) and piecewise planar modeling before sending the models and photos back to the phone for image-based rendering (view interpolation).
Nathanael (Over 1 year ago)
You can listen to Dean Hachamovitch (Internet Explorer head honcho) explain better than me, why IE9 is important here: 
http://www.microsoft.com/presspass/presskits/internetexplorer/videogallery.aspx?contentID=IE9Launch

As with almost any technology presentation on stage, there are some definite awkward moments, but bear with it and just remember that you're there to gather information.
iNveridux-002 (Over 1 year ago)
Hi Nathanael~!

Thanks for the extensive response and further information  :)

I note the first link from "TechFest 2011" as being *exactly* like the Josh Harle stuff you had directed me towards a month back.  Since then I have been quite busy with it (and many other things).  Good comments in those threads, btw.

I'm not sure I understand, though... These guys at TechFest 2011 are Microsoft guys?  If so, then I really need to get in contact with MS, because I have been shooting these types of "datasets," ie objects that I spin around, ie "Photospins(tm)," as my people call them, for some time.  Haha!  It would be my pleasure to allow them to test their new technique using my datasets, and perhaps even develop a more extensive partnership.  Marketing, anyone?

I very much like the direction that Microsoft has taken here.  Excellent work~!

Nathanael:  Get in touch by email if you want to see a little bit behind Oz's curtain. I have some results that you may enjoy
michaeldenis (Over 1 year ago)
The above comment was brought to you by Michael Denis -- iNveridux   (;
Nathanael (Over 1 year ago)
ツ Yeah, TechFest is the annual Microsoft Research technology fair where MSR researchers show the Microsoft program groups what cool new technology is coming down the line, in hopes that a product team will adopt their techniques, build it up from research quality code to something more robust that should be more reliable and robust, and ship it out in the next version of their program for end users to utilize.

Here's the guys' MSR pages for more information on their projects and : 
Sudipta: http://research.microsoft.com/en-us/people/sudipsin/
Johannes: http://research.microsoft.com/en-us/people/kopf/

An interesting note is that it was TechFest 2006 where Blaise first saw Noah Snavely's Photo Tourism presentation. You can hear them tell the story here: 
http://uwtv.org/programs/displayevent.aspx?rid=8282

I'll be in touch with email after I get off work tonight.
Nathanael (Over 1 year ago)
If, like me, you looked at that Spin Movie video from TechFest 2011 and wanted to know more about exactly what they were doing, then here are a couple of videos that provide a little better look which have been published since last month when I linked to Laura Foy's Channel 9 video and Gizmodo's story.

MIT Technology Review gives another look (not as much explanation in this one):
http://www.technologyreview.com/computing/37021/

Eric Stollnitz from MSR gives a great look at what's being done in this MIX'11 Session, though: 
http://channel9.msdn.com/events/MIX/MIX11/RES06

(After Eric's talk, Joseph Joy gives a great look at MSR:India's work on Digital Narratives, which have been linked to on the Photosynth forums before) http://photosynth.net/discussion.aspx?cat=6352296a-76e5-4f2a-96eb-d10fdab0de1f&dis=e98e939f-5a1f-49fd-afa6-c1b4e143fe32
michaeldenis (Over 1 year ago)
Hi Nate: Great Work!

..and good news.  Based on these other videos and other actors using the Kopf/~ tech, I would say that MS has a real intention to bring this stuff to the people.  That's great because I need this software *now*.  I am at a point in my process analysis and improvement where the visual fluidity of the "Special Photography" has taken a very real front seat.  While I have done very interesting things with these "PhotoSPINS(tm)" by using Microsoft Photosynth (examples just below), anyone should see that this new software viewing approach is superior to PS in just about every way.  It is new after all.

"UNH Wildcat"
http://inveridux.blogspot.com/2011/04/unh-wildcat-by-matthew-gray-palmer.html

"Cliff"
http://inveridux.blogspot.com/2011/04/cliff-boston-museum-of-science.html

"Grasshopper"
http://inveridux.blogspot.com/2011/03/grasshopper.html

In any case, how can I help these guys more?  I am *extremely* interested in collaborating.  Ideas, Nate?
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