Evolving Time Fronts: Spatio-Temporal Video Warping
, Yael Pritch
, Dani Lischinski
, Shmuel Peleg
We propose 'evolving time fronts', a new framework for
spatio-temporal 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.
Specific strategies for time front evolution 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.
A technical report describing the Evolving Time Fronts video warping framework in more details
Simple Evolving Time Fronts
Select the winner in any race.
By enabling time to flow differently at different locations in the
video, we create new videos with any desired winner.
Demolition: Customize the way you want the stadium to be blown: Starting
at the sides or starting at the center?
All water flows down simultaneously in a panoramic view, although each
part was captured at a different time!
Watch the Dunks!
The Magnifying Glass lets you focus on a single action in the video,
slowed down and magnified.
Drawing with Time:
The "text over waves" is written merely by shifting time at designated
Creating new movies as if taken from new viewpoints is just a special
case of the spatio-temporal video warping