Reuse, PascalGurban, MihaiAustvoll, IvarThiran, Jean-Philippe2009-08-272009-08-272009-08-272009https://infoscience.epfl.ch/handle/20.500.14299/42253The use of omnidirectional cameras for videoconferencing promises to simplify the hardware setup necessary for large groups of participants. We investigate the use of a multimodal speaker detection algorithm on audio-visual sequences captured with such a camera, in particular, an algorithm that uses the audio energy together with the optical flow. We analyze several types of optical flow methods to determine the one which is appropriate to the omnidirectional context.LTS5text::conference output::conference proceedings::conference paper