CUDA gamification experiment

This demo was inspired by Escapist article “I hate magic” by Robert Rath ( http://www.escapistmagazine.com/artic… ) and “continuous game of life” (http://arxiv.org/abs/1111.1567 ) by Stephan Rafler
This is attempt to show how GPGPU could be used to model magic as different physics.
The demo run at 70 fps at laptop with GF GTX 670M. With some tradeoffs it can be made run much faster
require CUDA GPGPU with at least 2.0 Cuda compute capability (practically all modern cards, GF GTX 550 or better)
Source code:
https://github.com/s271/cuMagic/

Samsung SARI 1.5 Augmented Reality SDK is out in the wild

Something I did for Samsung (kernel of tracker). Biggest improvement in SARI 1.5 is the sensors fusion, which allow for a lot more robust tracking.
Here is example of run-time localization and mapping with SARI 1.5:

This is the AR EdiBear game (free in Samsung apps store)

Stuff and AR

I once asked, what’s 3d registration/reconstruction/pose estimation is about – optimization or statistics? The more I think about it, the more I convinced it’s at least 80% statistics. Often specifically optimization tricks like Tikhonov regularization have statistical underpinning. Stability of optimization is robust statistics(Yes I know, I repeat it way too often). Cost function formulation is a formulation for error distribution and define convergence speed.

Now unrelated(almost) AR stuff:
I already mentioned on Twitter that version of markerless tracker for which I did a lot of work is part of Samsung AR SDK (SARI) for Android and Bada. It was was shown at AP2011(Presentaion and also include nice Bada code). AR SDK presentation is here.
Some videos form presentation – Edi Bear game demo with non-reference tracking at the end of the video and less trivial elements of SLAM tracking. Other application of SARI SDK – PBI (This one seems use earlier version).

Symbian Multimarker Tracking Library updated

Symbian Multimarker Tracking Library updated to v0.5. Some bugs fixed, markers can be moved run-time now. Download is here

Symbian Multimarker Tracking Library

#augmentedreality
Demo-version of binary Symbian multimarker tracking library SMMT available for download.
SMMT library is a SLAM multimarker tracker for Symbian. Library can work on Symbian S60 9.1 devices like Nokia N73 and Symbian 9.2 like Nokia N95, N82. It may also work on some other later versions. This version support only landscape 320×240 resolution for algorithmical reason – size used in the optimization.
This is slightly more advanced version of the tracker used in AR Tower Defense game.
PS corrupted file fixed

The Register article mention AR Tower Defense

The Register article on Augmented Reality make a mention of AR Tower Defense.

PS. In relation to this article, if smartphone need better display for AR – what mobile AR device need first

New version of Augmented Reality Tower Defense

A new version of AR Tower Defense – v0.03 Some bugs fixed (black screen bug)
and minor tracking improvement

Five Centuries of Board Games

Great post by bibliodyssey about board games from 16 to 20 centuries.

Fullscreen version of AR Tower defense is up for download

AR Tower Defense is fullscreen now. I ‘ve also changed default mode from portrait to landscape.

Fullscreen AR Tower Defense is on the way.

Fullscreen version of the AR Tower Defense moving along nicely. I have changed default screen position from portrait to landscape. Don’t see any noticeable slowdown now. I’m thinking about increasing the number of markers from 6 to 9, but I’m not sure. Too many markers would clog the table…

PS It’s here already