MPEG-7标准在抽取动画镜头关键帧中的应用

Application of extracting the cartoon' s key frames using the MPEG-7 standard

在电影动画的制作过程中,经常以关键帧来代表一段动画镜头。快速,有效地抽取关键帧可以减轻多媒体数据库的负担,更重要的是,可以提高对动画镜头检索的正确率。用MPEG-7标准中的主颜色描述符对组成镜头的一系列帧进行颜色特征描述,通过计算帧间的颜色特征差异距离,可以达到有效抽取关键帧,提高检索正确率的目的。

During the process of producing the cartoon movie, it often takes some key frames to express a shot scene. If we can find a way to extract the key frames fast and efficacious, it will take of the burden of the database. Furthermore, it can improve the accuracy of retrieving the shot scenes. Using the color descriptor of the MPEG-7 standard to describe the series of frames that compose of the shot scene and calculating the different distance of the color feature, can make the aim of improving the accuracy of retrieving the shot scenes.