Program allows ordinary digital camera to see round corners

Scientists say computational periscopy program works out hidden scene in under a minute

Science may never tell us what lies round the next corner, but researchers have come up with the nearest thing: a computer program that turns a normal digital camera into a periscope.

In a demonstration of "computational periscopy" a US team at Boston University showed they could see details of objects hidden from view by analysing shadows they cast on a nearby wall.