Multiple speaker localization and identification through multiple camera and visible light communication

Abstract

Abstract-We propose a novel method for the localization and the identification of a speaker in the context of conference situations. For doing this, LED lights attached to the microphones are used as visible light communications transmitters. Once the speaker activate the microphone, LED transmits the speaker identification. At the receiver side, LED lights are identified and separated from video streams acquired by a low cost IP CMOS camera. Then, identification of the speaker is performed by recovering the data from the separated image. Results in terms of BER acquired from experimental demonstration are presented for different distances between the camera and the light source, i.e., 35 cm, 1, 2 and 5 meters.

A Novel Frequency Domain Visible Light Communication (VLC) Three-Dimensional Trilateration System for Localization in Underground Mining

“…Existing positioning technologies such as the global positioning system (GPS) are not useful in indoor applications, especially in underground mining environments. This is because the signal is easily blocked by most construction materials and the mobile terminal cannot process the beacons sent from the satellites [7][8][9][10][11][12]. Therefore, other wireless technologies such as Radio Frequency IDentification (RFID), Wireless Fidelity (Wi-Fi), and Zigbee have been preferred to provide indoor localization/positioning [5].…”