Rendition-based video editing for public contents authoring

Previous video editing is performed by specifying cutting points in a sequence of video frames and combining the trimmed shots together. In order to emphasize a nonverbal, emotional information of a scene effectively, we need to edit a video sequence so that it follows `film grammar´ or cinematography, which is the technique for effective expression of the scene in a film. In this paper, we propose a new framework of rendition-based video editing. Instead of specifying cutting points of a video sequence, an editor specifies the type of emotional expression that he/she likes to emphasize. Consequently, desirable transition of shot duration and shot combination are determined, and video contents are semi-automatically edited so as to follow the film grammar.