67403 external_news 1308310495 1475893483 Virtual globes such as Google Earth or Microsoft Visual Earth provide great bird's-eye views of urban landscapes. But those streets are empty, transforming the world's cities into ghost towns. Now a system, designed by a team led by Ph.D. student Kihwan Kim and Professor Irfan Essa of the College of Computing, can change that by drawing on real-time video from traffic and surveillance cameras, or weather sensors. It populates virtual towns with cars, people and realistic skies.

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