PanoToolsNG : Message: Fast Gigapixel Stitching on the Playstation 3

We are now at 22min for Bernhard Vogl's 345-image gigapixel-benchmark,
almost a factor of 4 faster than the next in line, and another
factor of two faster than the first prototype. This is not
much more than the time required to read and write the images:
warping & blending is almost done on-the-fly.

You can now download and test a limited preview of the program
for testing:
<http://www.hs-furtwangen.de/~dersch/PTStitcherNG0.1a.tar.gz>.
Read the documentation at
<http://www.hs-furtwangen.de/~dersch/Readme.PTStitcherNG0.1a>.

Regards

Helmut Dersch

Expand Messages

Author

Sort by Date

We are now at 22min for Bernhard Vogl's 345-image gigapixel-benchmark, almost a factor of 4 faster than the next in line, and another factor of two faster than...

Helmut Dersch
hd_de_2000

Mar 7, 2008
5:09 pm

hummm... is there any possibility to use 2-3 PS3 together to stitch panos in the future??? That would be great... a real rendering farm. ... Unfortunately my...

Luca Vascon
crimsonkingit

Mar 7, 2008
6:24 pm

... This is possible, and you can buy preconfigured PS3-clusters (7-17) from terrasoft. For panorama-processing the largest benefit would be one separate...

Helmut Dersch
hd_de_2000

Mar 8, 2008
7:59 am

hmmm... good... What's so specific to make you choosew a playstation instead a common computer? I think the clue is your Next Generation software better than...

Luca Vascon
crimsonkingit

Mar 8, 2008
11:46 am

... The PS3 is so fast: >200 GFLOPS compared to <70 GFLOPS for a high end "common computer" (8core xeon). Not to speak about price.. Helmut Dersch...

Helmut Dersch
hd_de_2000

Mar 8, 2008
3:24 pm

I haven't been following this thread very closely but this message got my attention. When the method for using a Playstation to stitch panos is stabilized (is...

Ken Warner
kwarner@...

Mar 8, 2008
4:03 pm

... If all goes well, you will get an installer for the Playstation and your PC, and PTStitcherNG will then be used from your PC as if it ran there, i.e. as...

Helmut Dersch
hd_de_2000

Mar 9, 2008
9:00 am

I'm convinced at all... ... I run to buy one....

Luca Vascon
crimsonkingit

Mar 8, 2008
4:23 pm

As a comparison, what is the time to just read and write all the images without any processing? Jim Watters ... -- Jim Watters jwatters @ photocreations . ca ...

Jim Watters
j1vvy

Mar 7, 2008
8:53 pm

... I have no good data, but maybe this is useful: The default output of PTStitcherNG is layered TIFF. To create flat TIFF-files the data must be reread and...

Helmut Dersch
hd_de_2000

Mar 8, 2008
8:41 am

Hi, I've heard bits and pieces about the power that's in the playstations.. I am personally not familiar with them..( I'm used to traditional puters) I'm not...

mrjimbo
montanajimbo...

Mar 8, 2008
4:19 pm

Congratulations to Helmut Dersch. This is a stunning result! If the application evolves beyond prototye, it is be incentive enough to buy a PS3 and install...

Bernhard Vogl
bernharv2000

Mar 8, 2008
9:24 pm

Sony cell's processor is a good processor but it should be more viewed as a super GPU than a real CPU. But I'm a bit disapointed about this approach from Mr...

alexandre jenny
alexandrejen...

Mar 9, 2008
7:39 am

... PTStitcherNG implements three approaches to speed up stitching: (1) Distribute warping among many cpus, each processing one row of pixels. (2) Interleave...

Helmut Dersch
hd_de_2000

Mar 9, 2008
9:39 am

Hello Alexandre, From a practical point of view, the PS3-rendering is more intriguing than the GPU approach. Why? 1) First, i would have to buy an appropriate...

Bernhard Vogl
bernharv2000

Mar 9, 2008
3:28 pm

Yes, I agree, it's intriguing. On one side : - Buy a PS3, - Put linux on it ( perhaps it breaks games playability, I don't know ... ) - Use it for stitching On...

alexandre jenny
alexandrejen...

Mar 9, 2008
3:53 pm

Random question from a caffeine addled mind: If the stitcher was written to use the GPU of a really fast graphics card -- what would that do to the portability...

Ken Warner
kwarner@...

Mar 9, 2008
5:28 pm

Good question. In fact, there are really just 2 makers of graphics cards for such a use. NVidia : there have a pretty cool SDK for such computing called CUDA: ...

alexandre jenny
alexandrejen...

Mar 9, 2008
7:31 pm

So to complete my thought... Then the PS3 seems like a simple way to get a common denominator so to speak. One program on one hardware configuration that is...

Ken Warner
kwarner@...

Mar 9, 2008
11:22 pm

hmmm. a double 4500 quadrofx for everybody? I always was stuck to Matrox cards, for better colors, 3-4 monitors, berret 2D graphics. When I made the PC I'm...

Luca Vascon
crimsonkingit

Mar 10, 2008
1:00 am

... scaleability? compatibility? price? all factors that talk for a PS3 "rendering farm". * clusters of PS3 are easier and cheaper to build than clusters of...

Yuval Levy
yuval_levy

Mar 10, 2008
1:43 pm

Helmut, This seems like a great leap forward, blending is definitely a major bottleneck -- thanks for your efforts. While your results are tremendous, I guess...

matt_nolan_uaf

Mar 9, 2008
7:46 am

... Yes and no: while we cannot get below a limit set by IO-speed, we have not reached this limit. And lowering this limit by providing faster IO has some but...

Helmut Dersch
hd_de_2000

Mar 9, 2008
11:07 am

Hello Matt, Just out of curiousity: I can remember that you invested a decent amount of time and money to build a special stitching machine. Can you tell us a...

Bernhard Vogl
bernharv2000

Mar 9, 2008
6:59 pm

Helmut, On my computer, none of the blending algorithms are using more than 5% of my CPU for large projects. This is due to the I/O time spent writing large...

matt_nolan_uaf

Mar 10, 2008
6:14 am

... In this version it does write tempfiles but only few and small ones. ... I guess so. At this point I really cannot say which part of the solution ...

Helmut Dersch
hd_de_2000

Mar 10, 2008
8:42 am

... Yes, yes, yes!!! PS3's have much more practical use than just to "play games". I make no appologies to the gamers out there, I'm sure you will still enjoy ...

Kathy Wheeler
kwrinkling

Mar 10, 2008
9:11 pm

Last game I played on a computer was solitary on cellphone. 3 years ago....

Luca Vascon
crimsonkingit

Mar 10, 2008
9:37 pm

*Solitaire*, not *solitary*. ;-) Ian...

Ian Wood
azurevision2003

Mar 10, 2008
9:41 pm

Yahoo! Groups Tips

Did you know...

Messages

Yahoo! My Yahoo! Mail
	Sign In New User? Sign Up
		Tech - Groups - Help

Yahoo! Groups Tips

Did you know...

Best of Y! Groups

Messages