Audio-visual interaction in multimedia communication
To many people, the word "multimedia" simply means the combination of various forms of information: text, speech, music, images, graphics and video. What is often overlooked is the interaction among these forms. In this paper, we present our results in exploiting the audio-visual interaction that is very significant in multimedia communication. The applications include lip synchronization, joint audio-video coding, and person verification. We present the enabling technologies, including audio-to-visual mapping and facial image analysis, for these applications. Our results show that the joint processing of audio and video provides advantages that are not available when audio and video are studied separately.