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Zeroing in on Surveillance Video

After a crime or terrorist attack, authorities looking for the perpetrators may need to review many hours of surveillance video—in just minutes. But how can they speed up the video without speeding up the action? That's where "video synopsis" can help.

ByMatt BellNova

National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.