Abstract :
It seemed like the nascent augmented-reality industry was on a roller coaster at the start of the year. Things looked bad when Google announced that it was terminating sales of its Glass headset in favor of developing some new version to be announced at some time in the future. (Possibly in a galaxy far, far away.) But then the future looked bright again when Microsoft unveiled its HoloLens AR headset at a razzle-dazzle press event in late January.
