A system automatically generates a representative image to represent a video sequence of a video program, and facilitates editing and manipulating of the video program. The system comprises receiving means (such as a frame selector or a unit extractor) for receiving a frame having at least one unit from...http://www.google.de/patents/US6052492?utm_source=gb-gplus-sharePatent US6052492 - System and method for automatically generating an image to represent a video sequence
