This work was presented at the 1995 International Symposium on Circuits and Systems in Seattle, WA. It is also currently under review for publication in the IEEE Transactions on Circuits and Systems for Video Technology.
Shown at left is a single frame of
an image sequence filmed at Canada Olympic Park, the site of
several events at the 1988 Winter Olympics here in Calgary.
Objects that move in this sequence are
chairs on the chairlift
and skiers whizzing by.
The moving input
image MPEG sequence can be viewed
here(175K,
160x120, 100 frames).
Shown here is a single frame of
of the output sequence corresponding to the above input frame.
The filter is tuned to enhance objects
moving at the speed and direction of the downward-moving chairs.
As shown, the downward-moving chair in the
center of the image is clearly visible. The upward-moving
chairs have been rejected and so have the skiers. This is more
clearly evident if you look at the
output MPEG sequence (124K,
160x120, 100 frames).