HUD aided by DMS20 Nov 2021 12:02
The Road Ahead for Augmented Reality - By Keith Kirkpatrick
Communications of the ACM, December 2021, Vol. 64 No. 12, Pages 20-22 - 10.1145/3490317
Automotive head-up displays (HUDs), systems that transparently project critical vehicle information into the driver's field of vision, were developed originally for military aviation use, with the origin of the name stemming from a pilot being able to view information with his or her head positioned "up" and looking forward, rather than positioned "down" to look at the ****pit gauges and instruments. The HUD projects and superimposes data in the pilot's natural field of view (FOV), providing the added benefit of eliminating the pilot's need to refocus when switching between the outside view and the instruments, which can impact reaction time, efficiency, and safety, particularly in combat situations.
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'There are a few different ways to accomplish this; adjusting the eyebox height by using a small motor to tilt one of the HUD mirrors up or down; applying more graphics processing combined with a driver monitoring system to compensate for the change in alignment, or designing a larger eyebox so the HUD's optical axis does not need to be adjusted and graphical alignment is maintained. Often a combination of the latter two approaches are used to provide an elegant system for providing optimal viewing angles for drivers of differing heights and seating positions.'
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https://cacm.acm.org/magazines/2021/12/256945-the-road-ahead-for-augmented-reality/fulltext
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