Hybrid speaker tracking in an automated lecture room

We present a hybrid speaker tracking scheme based on a single pan/tilt/zoom (PTZ) camera in an automated lecture capturing system. Given that the camera’s video resolution is higher than the required output resolution, we frame the output video as a subregion of the camera’s input video. This allows us to track the speaker both digitally and mechanically. Digital tracking has the advantage of being smooth, and mechanical tracking can cover a wide area. The hybrid tracking achieves the benefits of both worlds. In addition to hybrid tracking, we present an intelligent pan/zoom selection scheme to improve the aestheticity of the lecture scene.

• Type: Conference
• Year: 2005
• Where: ICMCS
• Authors: Cha Zhang, Yong Rui, Li-wei He, Michael N. Wallick
• Keywords: Camera’s Video Resolution, Hybrid Tracking, ICMCS 2005, Speaker Tracking Scheme