A new public art installation in Bristol is to record people's shadows and play them back for others to interact with.

For six weeks from today technology fitted into street lights will capture people as they walk underneath and then play back an image of the person for other pedestrians to see.

The commission, called Shadowing, by Jonathan Chomko and Matthew Rosier, has won the Playable City Award which aims to use technology to connect people.

The precise locations of each of the eight installations is being kept secret so people can discover them for themselves, but all are in pedestrianised areas of the city.

A map pointing to general areas where they can be found will be published on the website for the Watershed arts venue, which is behind the Playable City Award.

If nobody passes by for a time, the street light goes into a "dream state" which triggers the installation to play a history of shadows for people to watch.

Mr Chomko said: "Shadowing is an open invitation to the people of Bristol to come and play in the shadows of the city, leaving traces of themselves behind, and encountering the traces of people they have never met.

"We're not releasing exact locations of the Shadowing street lights, as we want this experience to meld into the everyday - not necessarily a destination, but something along the way.

"We hope that people will enjoy discovering something truly extraordinary hidden within the fabric of their everyday surroundings."

At the end of the six-week period Shadowing will be taken on tour internationally.

This latest installation follow's last year's Hello Lamp Post commission, which enabled people to "talk" to the city's street furniture by sending text messages which would elicit a response from lampposts, postboxes, bollards, manholes, or telegraph poles.