| 摘要 |
A method and apparatus are described that provide a hardware independent virtual camera that may be seamlessly integrated with existing video camera and computer system equipment. The virtual camera supports the ability to track a defined set of three-dimensional coordinates within a video stream and to dynamically insert rendered 3-D objects within the video stream on a real-time basis. The described methods and apparatus may be used to manipulate any sort of incoming video signal regardless of the source of the video. Exemplary application may include real-time manipulation of a video stream associated, for example, with a real-time video conference generated by a video camera, or a video stream generated by a video player (e.g., a video tape player, DVD, or other device) reading a stored video recording.
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