Patent ID: 7355623
Filing Date: 2008-04-08
Classification: G10L,H04N

Abstract:
1. A computer-implemented process for facilitating the identification of a current speaker in each frame of a low frame-rate video, comprising using a computer to perform the following process actions: obtaining audio and video of an event having multiple people in attendance; transmitting the video of the event at a prescribed frame rate to a client computing device; tracking the movements of the attendees and recording their positions when each video frame is transmitted and their subsequent positions between the transmission of the video frames; periodically identifying which of the attendees is currently speaking at a rate significantly faster than the prescribed video frame rate; periodically generating an indicator which comprises the location of the attendee who is currently speaking as depicted in the last-transmitted video frame regardless of their current position; embedding the indicators as they are generated into the obtained audio of the event using an audio watermarking technique; and continuously transmitting the audio of the event with the embedded indicators to the client computing device for use in highlighting a region in the last-transmitted video frame depicting the attendee at the location specified in the last-embedded indicator.