PTAM + AR on an iPhone 3G
Why Stack Overflow recommends it
Stack Overflow users link it as the reference example of markerless, PTAM-style augmented reality on an iPhone when asking about or recommending tracking approaches.
Recommended by 0 people across 0 different months, 2009 to 2015.
What it is
A 1m26s demo from the ActiveVision group at Oxford showing the Parallel Tracking and Mapping (PTAM) system adapted to run live on an iPhone 3G. It shows markerless augmented reality with all processing done on the phone.
What people said
Cites r0u1i · 2009-08 · Stack Overflow · on “SURF and SIFT Alternative Object Tracking Algorithm for Augmented Reality”
You can use a simpler algorithm if you would make stricter restrictions on the area you would like to be tracked. As you surely know, ARToolKit is pretty fast, but only tracks black and white markers with a very distinct frame. If you want a (somewhat) general purpose tracker, you may want to check PTAM. The site ( [LINK] ) is currently down, but here's a snazzy video of it working on an iPhone ( [this video] )
Cites hm0429 · 2010-06 · Stack Overflow · on “PTAM on iPhone (AR)”
I want to implement PTAM(Parallel Tracking and Mapping) system in iPhone. like this: [this video] Does anyone know open-source project of PTAM or a sample code?
Cites itsmikita · 2015-08 · Stack Overflow · on “Detect walls or planar surfaces (with OpenCV)?”
I'm developing a simple app that analyses video stream from iOS camera, detects walls or planar surfaces and project an image on it. In my case I can't use markers. What OpenCV algorithm should I use? Or maybe there is another library that would do the job? I find PTAM ( [this video] ) is doing what I need but I can't find a working code yet and all the resources look dead. I spent a month now on it and start hitting a wall, I would be happy if someone just pointed me to the right direction, please!