Energy Demand in AR Applications—A Reverse Ablation Study of the HoloLens 2 Device

Przemysław Skurowski (), Dariusz Myszor, Marcin Paszkuta, Tomasz Moroń and Krzysztof A. Cyran
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Przemysław Skurowski: Department of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland
Dariusz Myszor: Department of Algorithmics and Software, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland
Marcin Paszkuta: Department of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland
Tomasz Moroń: Department of Cybernetics, Nanotechnology and Data Processing, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland
Krzysztof A. Cyran: Department of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, ul. Akademicka 16, 44-100 Gliwice, Poland

Energies, 2024, vol. 17, issue 3, 1-17

Abstract: This study presents a comprehensive analysis of power consumption in the context of AR applications on the HoloLens 2. As an ablation study, the research systematically dissects various aspects, shedding light on both hardware and software components. The power consumption was examined in diverse scenarios, ranging from the device at idle to running AR applications of increasing complexity. Overall, the study provides insights into the power management aspects associated with Hololens 2 AR devices and applications, offering cues for optimizing energy efficiency and enhancing the user experience. The findings confirm that display-related factors, such as the screen brightness and content complexity, significantly impact power consumption. However, the results reveal that power usage does not scale linearly with the number of objects in an AR scene due to overhead factors and object occlusion. Furthermore, usage scenarios such as lighting conditions and large/minor user motions are analyzed. Moreover, the influence of different development platforms, Unity and Unreal, on power consumption is discussed, highlighting their respective contributions to energy usage. These findings might be useful for researchers, developers, and users of AR technology.

Keywords: augmented reality; head-mounted display; system analysis; usability; energy efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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