Methods and apparatus for detection of motion picture piracy for piracy prevention

摘要

A copiers' camera or camcorder in a motion-picture audience region is detected by illuminating the audience region with invisible infrared light, and locating any copiers' camera or camcorder within the audience region by imaging the audience region with one or more infrared-light-sensitive cameras. The image captured by the infrared-sensitive camera(s) during a performance may be correlated with information about the audience region, such as row and seat numbers. Copiers may be identified by their presence at seats where copying activity is detected, and the infrared images may be preserved as evidence of the piracy.