On the precision of third person perspective augmented reality for target designation tasks

The availability of powerful consumer-level smart devices and off-the-shelf software frameworks has tremendously popularized augmented reality (AR) applications. However, since the built-in cameras typically have rather limited field of view, it is usually preferable to position AR tools built upon...

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Vydáno v:Multimedia tools and applications Ročník 76; číslo 14; s. 15279 - 15296
Hlavní autoři: Liu, Fei, Seipel, Stefan
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Springer US 01.07.2017
Springer Nature B.V
Témata:
Augmented reality
Computer Communication Networks
Computer Science
Computerized Image Processing
Data Structures and Information Theory
Datoriserad bildbehandling
Experiment
Field of view
Hållbar stadsutveckling
Intelligent industri
Intelligent Industry
Multimedia Information Systems
Precision study
Special Purpose and Application-Based Systems
Sustainable Urban Development
Target designation
Third person perspective
Transformations
Target designation
Third person perspective
Precision study
Experiment
Augmented reality
ISSN:1380-7501, 1573-7721, 1573-7721
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Shrnutí:The availability of powerful consumer-level smart devices and off-the-shelf software frameworks has tremendously popularized augmented reality (AR) applications. However, since the built-in cameras typically have rather limited field of view, it is usually preferable to position AR tools built upon these devices at a distance when large objects need to be tracked for augmentation. This arrangement makes it difficult or even impossible to physically interact with the augmented object. One solution is to adopt third person perspective (TPP) with which the smart device shows in real time the object to be interacted with, the AR information and the user herself, all captured by a remote camera. Through mental transformation between the user-centric coordinate space and the coordinate system of the remote camera, the user can directly interact with objects in the real world. To evaluate user performance under this cognitively demanding situation, we developed such an experimental TPP AR system and conducted experiments which required subjects to make markings on a whiteboard according to virtual marks displayed by the AR system. The same markings were also made manually with a ruler. We measured the precision of the markings as well as the time to accomplish the task. Our results show that although the AR approach was on average around half a centimeter less precise than the manual measurement, it was approximately three times as fast as the manual counterpart. Additionally, we also found that subjects could quickly adapt to the mental transformation between the two coordinate systems.
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content type line 14
ISSN:1380-7501
1573-7721
1573-7721
DOI:10.1007/s11042-016-3817-0