Technical Evaluation of HoloLens for Multimedia: A First Look

Yang, Lei; Dong, Hao; Zhang, Longyu; Saddik, Abdulmotaleb El

doi:10.1109/mmul.2018.2873473

Cited by 84 publications

(42 citation statements)

References 10 publications

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“…The HoloLens has already been evaluated in regard of a range of different aspects. For instance, Liu et al [9] provide a first basic evaluation of the HoloLens as AR device, while Vassallo et al [10] specifically investigate the perceived spatial stability of holograms. An investigation regarding the quality of the usage experience enabled by the HoloLens is provided by Zhang et al [11].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of HoloLens Tracking and Depth Sensing for Indoor Mapping Applications

Hübner

Clintworth

Liu

et al. 2020

Sensors

113

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The Microsoft HoloLens is a head-worn mobile augmented reality device that is capable of mapping its direct environment in real-time as triangle meshes and localize itself within these three-dimensional meshes simultaneously. The device is equipped with a variety of sensors including four tracking cameras and a time-of-flight (ToF) range camera. Sensor images and their poses estimated by the built-in tracking system can be accessed by the user. This makes the HoloLens potentially interesting as an indoor mapping device. In this paper, we introduce the different sensors of the device and evaluate the complete system in respect of the task of mapping indoor environments. The overall quality of such a system depends mainly on the quality of the depth sensor together with its associated pose derived from the tracking system. For this purpose, we first evaluate the performance of the HoloLens depth sensor and its tracking system separately. Finally, we evaluate the overall system regarding its capability for mapping multi-room environments.

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Section: Introductionmentioning

confidence: 99%

Evaluation of HoloLens Tracking and Depth Sensing for Indoor Mapping Applications

Hübner

Clintworth

Liu

et al. 2020

Sensors

113

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“…In many cases, AR is also called Mixed Reality (MR), where holograms can interact with the physical world using the concept of occlusion. One of the enablers of AR/MR applications is the technology called Sensors 2020, 20, 690 3 of 16 spatial mapping [5,7]. Spatial mapping creates a detailed representation of real-world surfaces of the environment so as holograms can interact with the physical environment.…”

Section: System Model Of Augmented-raysmentioning

confidence: 99%

In Situ Wireless Channel Visualization Using Augmented Reality and Ray Tracing

Koutitas

Siddaraju

Metsis

2020

Sensors

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This article presents a novel methodology for predicting wireless signal propagation using ray-tracing algorithms, and visualizing signal variations in situ by leveraging Augmented Reality (AR) tools. The proposed system performs a special type of spatial mapping, capable of converting a scanned indoor environment to a vector facet model. A ray-tracing algorithm uses the facet model for wireless signal predictions. Finally, an AR application overlays the signal strength predictions on the physical space in the form of holograms. Although some indoor reconstruction models have already been developed, this paper proposes an image to a facet algorithm for indoor reconstruction and compares its performance with existing AR algorithms, such as spatial understanding that are modified to create the required facet models. In addition, the paper orchestrates AR and ray-tracing techniques to provide an in situ network visualization interface. It is shown that the accuracy of the derived facet models is acceptable, and the overall signal predictions are not significantly affected by any potential inaccuracies of the indoor reconstruction. With the expected increase of densely deployed indoor 5G networks, it is believed that these types of AR applications for network visualization will play a key role in the successful planning of 5G networks.

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“…Six cameras integrated in the headset scan the environment (Evans et al 2017). The camera recordings are then used to build a spatial representation of all perceived objects (Liu et al 2018). As this representation can be exported as a 3D model, the HoloLens can also be used to visualize 3D space (see Fig.…”

Section: Hologram Placement and Displaymentioning

confidence: 99%

Preparing the HoloLens for user Studies: an Augmented Reality Interface for the Spatial Adjustment of Holographic Objects in 3D Indoor Environments

Keil

Edler

Dickmann

2019

KN J. Cartogr. Geogr. Inf.

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Augmented reality (AR), the extension of the real physical world with holographic objects provides numerous ways to influence how people perceive and interact with geographic space. Such holographic elements may for example improve orientation, navigation, and the mental representations of space generated through interaction with the environment. As AR hardware is still in an early development stage, scientific investigations of the effects of holographic elements on spatial knowledge and perception are fundamental for the development of user-oriented AR applications. However, accurate and replicable positioning of holograms in real world space, a highly relevant precondition for standardized scientific experiments on spatial cognition, is still an issue to be resolved. In this paper, we specify technical causes for this limitation. Subsequently, we describe the development of a Unity-based AR interface capable of adding, selecting, placing and removing holograms. The capability to quickly reposition holograms compensates for the lack of hologram stability and enables the implementation of AR-based geospatial experiments and applications. To facilitate the implementation of other task-oriented AR interfaces, code examples are provided and commented. Keywords Augmented reality • AR cartography • HoloLens • Spatial cognition • Experimental methods Zusammenfassung Augmented reality (AR), die Erweiterung der realen physischen Welt durch Hologramme, bietet viele Möglichkeiten die menschliche Wahrnehmung von, und Interaktion mit, dem geographischen Raum zu beeinflussen. Solche holografischen Elemente könnten beispielsweise zu einer Verbesserung von Orientierung, Navigation, oder durch Interaktion mit der Umgebung erzeugter mentaler räumlicher Modelle führen. Da sich AR Hardware noch in einem frühen Entwicklungsstadium befindet, sind wissenschaftliche Untersuchungen der Effekte von holografischen Elementen auf räumliches Wissen und die räumliche Wahrnehmung für die Entwicklung von nutzerorientierten AR Anwendungen notwendig. Die exakte und replizierbare Positionierung von Hologrammen, welche eine maßgebliche Voraussetzung für standardisierte wissenschaftliche Experimente ist, ist durch den Stand der Technik jedoch noch nicht gegeben. In diesem Artikel werden die technischen Ursachen hierfür erläutert. Im Anschluss beschreiben wir die Entwicklung eines Unity-basierten Interface, welches das Hinzufügen, Auswählen, Platzieren, und Entfernen von Hologrammen durch den Nutzer ermöglicht. Die Möglichkeit Hologramme schnell neu zu positionieren dient der Kompensation mangelnder räumlicher Stabilität von Hologrammen und ermöglicht die

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Technical Evaluation of HoloLens for Multimedia: A First Look

Cited by 84 publications

References 10 publications

Evaluation of HoloLens Tracking and Depth Sensing for Indoor Mapping Applications

Evaluation of HoloLens Tracking and Depth Sensing for Indoor Mapping Applications

In Situ Wireless Channel Visualization Using Augmented Reality and Ray Tracing

Preparing the HoloLens for user Studies: an Augmented Reality Interface for the Spatial Adjustment of Holographic Objects in 3D Indoor Environments

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