Israeli startup Binah.ai was previously into financial analysis (see here). Now it uses its Artificially Intelligent technology to analyze a video the cheek of a human face to extract vital signs and mental stress measurements. It is used in Montreal hospitals to monitor Covid-19 patients remotely.
https://www.calcalistech.com/ctech/articles/0,7340,L-3832195,00.html
https://www.calcalistech.com/ctech/articles/0,7340,L-3809760,00.html