Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

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This discussion was created for logged-in users only, but now has been archived.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:

"There are things that are so serious that you can only joke about them" - Heisenberg

Working...