An extension of 2D Seam Carving [Avidan and Shamir, 2007]
is presented, which allows for automatic resizing the duration of video
from stationary cameras without interfering with the velocities of the ob-
jects in the scenes. We are not interested in cutting out entire frames, but
instead in removing spatial information across different frames. Thus we
identify a set of pixels across different video frames to be either removed
or duplicated in a seamless manner by analyzing 3D space-time sheets in
the videos. Results are presented on several challenging video sequences.