is there any way that i can track motion by moving the mobile phone in different directions? i want to apply that on series 60 but i dont know where to strat. what algo should i use? any suggestions?
There are several way to do it. It also depend if you want track exact 3d position of the camera or just rough 2d direction of camera movment.
1a. Use preset physical markers in the envrtoment and some image recoginition routine. Used for 3d tracking.
Markerless: 1b. use runtime generated feature points. Used for 3d and 2d tracking 2b. use discrete Fourier transform. Used for precise 2d tracking and processing stage for 3d tracking.
2b is quite computationally expensive and most robust of markerless tracking. Some of 1a and 1b are quite fast.
Most of 3d traking is mathematically heavy and computationally expensive, prone to precision loss and instabilities if performed on the cellular phone. I have some expirience with marker 3d tracking - more or less stable algorithm can perform something around 8-10 frames per second on the Nokia 6600 (without assembler optimization, with some fixed points integerr and TReal calulations)
and google for "feature extraction", "computer vision for Symbian" "ARToolkit for Symbian" etc. I think someone posted on NewLC computer vision library sources for Symbian.
Forum posts: 114
It also depend if you want track exact 3d position of the camera or just rough 2d direction of camera movment.
1a. Use preset physical markers in the envrtoment and some image recoginition routine. Used for 3d tracking.
Markerless:
1b. use runtime generated feature points. Used for 3d and 2d tracking
2b. use discrete Fourier transform. Used for precise 2d tracking and processing stage for 3d tracking.
2b is quite computationally expensive and most robust of markerless tracking.
Some of 1a and 1b are quite fast.
Most of 3d traking is mathematically heavy and computationally expensive, prone to precision loss and instabilities if performed on the cellular phone.
I have some expirience with marker 3d tracking - more or less stable algorithm can perform something around 8-10 frames per second on the Nokia 6600 (without assembler optimization, with some fixed points integerr and TReal calulations)
here is online compendium of computer vision
http://homepages.inf.ed.ac.uk/rbf/CVonline/
check also here
http://www.uni-weimar.de/~bimber/research.php
and google for "feature extraction", "computer vision for Symbian" "ARToolkit for Symbian" etc. I think someone posted on NewLC computer vision library sources for Symbian.
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