They did not have VR glasses, so they simulated them using a helmet-mounted webcam and a monitor. The AR weld risk profile (my words) is overlaid on the capture

They did not have VR glasses, so they simulated them using a helmet-mounted webcam and a monitor. The AR weld risk profile (my words) is overlaid on the captured video images. See the article's video with caption 'Screen-capture of the AR experience...'