Date Added: Jul 2012
In this paper, the authors deal with the problem of automatic speaker tracking by camera. Such tracking systems do exist nowadays, but they suffer from a number of problems such as: the response time due to the system inertia, the disturbing motor noise and the mechanical oscillations of the mechatronic module. In order to overcome these problems, they thought to employ a virtual tracking system using a fixed camera that does not require any mechanical part. They have proposed and conceived a virtual tracking system which is able to ensure the required task by using only two cardioid microphones and a classic video camera.