The development of a new app designed to reduce online viewing of child sexual abuse material has received £1.8m of funding from the EU.
It will be tested with volunteers who have sought help because they are drawn to illegal images and want to ensure they cannot act on their desire.
Installed on devices such as phones, the app will identify and block harmful images and videos from being displayed.
It's hoped it can help combat "growing demand" for child abuse images.
The Protech project is a collaboration involving organisations from the EU and UK.
The project's app - called Salus - is intended to work in real-time, using artificial intelligence to identify potential child sexual abuse material and stop users from seeing it. It will also use other more conventional techniques to block content.
The Internet Watch Foundation, an organisation that works to find, flag and remove child abuse material, will help to train the AI technology developed by the UK company SafeToNet.
Tom Farrell of SafeToNet, who worked for 19 years in law enforcement, told the BBC the app was not intended to be a tool to report users to the police: "People who are voluntarily looking to stop themselves seeing child sexual abuse material quite clearly wouldn't use such a solution if they believe that it was going to report them to law enforcement."