| 摘要 |
A representation for encoding time varying image data that allows for varying spatial and temporal resolutions in different parts of a video sequence. The representation, called multiresolution video, is based on a sparse, hierarchical encoding of the video data as multiple streams. Operations are defined for creating, viewing, and editing multiresolution video sequences. These operations support a variety of applications, including multiresolution playback, motion-blurred "fast forward" and "reverse," constant speed display, enhanced video shuttling or searching, and "video clip-art" editing and compositing. The multiresolution representation requires little storage overhead, and the algorithms using the representation are both simple and efficient.
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