applied sciences Review Review of Microsoft HoloLens Applications over the Past Five Years Sebeom Park , Shokhrukh Bokijonov and Yosoon Choi * Department of Energy Resources Engineering, Pukyong National University, Busan 48513, Korea;
[email protected] (S.P.);
[email protected] (S.B.) * Correspondence:
[email protected]; Tel.: +82-51-629-6562; Fax: +82-51-629-6553 Abstract: Since Microsoft HoloLens first appeared in 2016, HoloLens has been used in various industries, over the past five years. This study aims to review academic papers on the applications of HoloLens in several industries. A review was performed to summarize the results of 44 papers (dated between January 2016 and December 2020) and to outline the research trends of applying HoloLens to different industries. This study determined that HoloLens is employed in medical and surgical aids and systems, medical education and simulation, industrial engineering, architecture, civil engineering and other engineering fields. The findings of this study contribute towards classifying the current uses of HoloLens in various industries and identifying the types of visualization techniques and functions. Keywords: head-mount display; HoloLens; augmented reality; mixed reality; virtual reality; visualization 1. Introduction Virtual reality (VR), augmented reality (AR) and mixed reality (MR) have been emerg- Citation: Park, S.; Bokijonov, S.; Choi, ing technologies for several years, but they are now able to generate realistic images, sounds Y. Review of Microsoft HoloLens and other sensations that allow users to experience a spectacular imaginary world [1]. It can Applications over the Past Five Years. be difficult to understand the difference between VR, AR and MR, at a glance.