Low-cost motion-sensing programs
April 15, 2011
Microsoft has announced Kinect support for Netflix for the Xbox 360 on April 14 along with a software development kit for do-it-yourself motion-sensing programmers — but a new open-source program called Predator promises to be cheaper.
Kinect for Netflix allows voice or gesture control of the Netflix interface to select any content, including playback, fast forward, and rewind.
Microsoft says the Kinect for Windows software development kit (beta) will ship this spring for do-it-yourself motion-sensing programmers to give researchers and enthusiasts “easy access to the capabilities offered by the Microsoft Kinect device connected to computers running Microsoft Windows 7.”
However, Predator, created by University of Surrey researcher Zdenek Kalal, promises to be cheaper and implementable using nothing but software and standard video cameras. It’s based on a machine-learning algorithm and can track almost any object the user selects.
The algorithm and program require an initial bounding box (area, volume) that includes the object to be tracked. Predator then builds a model of what it looks like.
The model is used to track the object as it changes its angle to the camera. Even if it leaves the frame and re-enters it at a new angle the software can detect it and track it again. The algorithm requires no training period. You show it the object you want to track and it learns what the object looks like as it performs the tracking.
http://goo.gl/GySOL
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