X

Photos: Watched in the Windy City

As part of a new safety program, surveillance cameras in Chicago capture street activity and alert police to gunshots.

Watched in the Windy City

In Chicago, surveillance cameras in higher-crime areas capture street activity and flag police when gunshots occur. The cameras, under development for some time, rely on probability.

Credit: Tim Boyle/Getty Images

Watched in the Windy City

Video and audio from these Chicago surveillance cameras is sent back to the Office of Emergency Management and Communications in real time as part of a new safety program called Operation Disruption.

Credit: Tim Boyle/Getty Images

Watched in the Windy City

The artificial-intelligence techniques in these cameras allow police to easily fast-forward to crucial scenes. Similar artificial-intelligence technology is being tested as a way to monitor Alzheimer's patients.

Credit: Tim Boyle/Getty Images