Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Submission + - Researchers track cell phones indoors by listening (northwestern.edu)

starzia writes: "Researchers at Northwestern University and the University of Michigan have developed a technique which aims to extend the reach of mobile phone location tracking. Their free iPhone app, Batphone, extracts a location "fingerprint" from a short recording of ambient sound. This software-only approach allows the device to determine its location with high accuracy using its built-in microphone. Unlike prior indoor tracking techniques, Batphone does not rely on the presence of Wi-Fi access points to serve as landmarks, although these can be used to assist the system when available. They also posted a web game which allows you to test your own ability to recognize rooms by listening. Technical details are in a paper which was presented at the MobiSys conference on Thursday. This is from the same people that brought you laptop sonar."
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Researchers track cell phones indoors by listening

Comments Filter:

"It doesn't much signify whom one marries for one is sure to find out next morning it was someone else." -- Rogers

Working...