An app on show at the CES tech expo uses artificial intelligence techniques to let its users appear within video games and interactive stories.

Wonder Painter is the creation of a former University of Cambridge academic who now runs a start-up in Beijing.

LG has already adopted its tech in some of its products, but Xiang Cao hopes to bring the experience to a wider audience, as he explained to the BBC's Cody Godwin in Las Vegas.

Find out what else will be on show at CES 2020