A "helmet cam" is a small camera that is worn on a helmet to record videos or take pictures from the point of view of the person wearing the helmet. Full definition
Better yet, the whole endeavor was caught on helmet cam, a seamless rush of villages, forests, and hills with speeds reaching up to 200 mph. (automobilemag.com)
The jerky camera movements when you're making slight adjustments with the analogue stick in helmet cam view is also damn annoying and needs to be smoothed out. (wolfsgamingblog.com)
Related: Corvette Racing at Road America: Celebrating Chevy's Homecoming [VIDEO] Tommy Milner's Corvette C6.R Helmet Cam [VIDEO] Corvette Racing Series Episode 7: Beating the Clock (corvetteblogger.com)