The technology is designed to automatically create rich video content from web pages or mobile phone messages, pictures and user-created video, from any location.
Viewers can text or email their content, and the BBC team in Hull will manage the content going to the screen through Millicent's web page, which then analyses the mixed media data and uses a video playout application to transmit the content.
The trial of the new technology follows the closure of IPTV service Kingston Interactive Television (KIT) in April, which had previously been used in the Hull region to enable the delivery of local news to residents.
BBC's technology manager of public space broadcasting, William Jenkyns, said: 'Our vision for our UK-wide network of Big Screens has always been one in which the public can get involved in. This trial looks at whether we can achieve that.'