Efficient Verification of Holograms Using Mobile Augmented Reality

Abstract

Paper documents such as passports, visas and banknotes are frequently checked by inspection of security elements. In particular, optically variable devices such as holograms are important, but difficult to inspect. Augmented Reality can provide all relevant information on standard mobile devices. However, hologram verification on mobiles still takes long and provides lower accuracy than inspection by human individuals using appropriate reference information. We aim to address these drawbacks by automatic matching combined with a special parametrization of an efficient goal-oriented user interface which supports constrained navigation. We first evaluate a series of similarity measures for matching hologram patches to provide a sound basis for automatic decisions. Then a re-parametrized user interface is proposed based on observations of typical user behavior during document capture. These measures help to reduce capture time to approximately 15 s with better decisions regarding the evaluated samples than what can be achieved by untrained users.

Usability Measures in Mobile-Based Augmented Reality Learning Applications: A Systematic Review

“…While performing usability studies in MAR-based educational research is promising, it can also be obsolete and seen as a complacent effort in research by focusing most studies within the education domain. While other domains, such as navigational MAR research, are catching up, the pair of MAR and usability research are still within infancy in other exploratory areas such as automotive [36], basic skills improvement [82], and AR technical research-such as works done in [44,52], gaming [38], and security [29]. As in the domains of medical health, architecture, construction, management, marketing and advertising, there have been much technical AR and applied research carried out, but has not include usability studies as one of the measured factors.…”

“…Types of usability metrics category. 13,15,16,18,19,22,25-27,31-35,37,40,41,43,49-59,61,62,64-77,80,81,83] Combination of Both 20[14,17,20,21,23,24,29,38,39,42,[44][45][46][47][48]60,63,78,79,82] …”

3D Character Customization for Non-Professional Users in Handheld Augmented Reality

“…Camera control is challenging in handheld AR as the camera can be manipulated with 6 degrees of freedom but it is typically hard for users to accurately and precisely align the device with a specific pose. Approaches for supporting the user in this tasks encompass, e.g., attention funnels [5], iron sight visualizations [13,14] or freezing the camera view [24,8]. For object selection, applications often use a ray casting metaphor.…”

Multipath Cooperative Communications Networks for Augmented and Virtual Reality Transmission

“…For instance, for the AR applications considered in [15], low-delay communications of the encoded video over a Bluetooth wireless personal area network were investigated, by using a combination of the dynamic packetisation of video slices together with the centralized and predictive rate control. Mobile AR and VR have been used and studied recently [16]- [19]. A. D. Hartl et al studied the verification of holograms by using mobile AR, where a re-parametrized user interface is proposed in [16].…”

“…Mobile AR and VR have been used and studied recently [16]- [19]. A. D. Hartl et al studied the verification of holograms by using mobile AR, where a re-parametrized user interface is proposed in [16]. The privacy preservation of cloth try-on was studied in [17], by using mobile AR.…”