Abstract
We present evolving time fronts, a new framework for spatiotemporal warping of video. The proposed framework is simple yet general, allowing a large variety of spatio-temporal warps to be specified in an intuitive manner. Specifically, we manipulate the time flow of a video sequence by sweeping an evolving time front surface through the video’s aligned space-time volume. In this paper we first introduce the general framework, and then describe and discuss several specific strategies for time front evolution that we have experimented with so far. These strategies are demonstrated to produce a variety of interesting and useful operations on video, ranging from subtle timing changes to eye-catching special effects, creation of dynamic panoramic mosaics, and parallax effects.
| Original language | American English |
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| Place of Publication | Jerusalem |
| Publisher | the Hebrew University of Jerusalem |
| Pages | 1-8 |
| Number of pages | 8 |
| State | Published - 26 Jan 2005 |