The Effect of Focal Distance, Age, and Brightness on Near-Field Augmented Reality Depth Matching

Singh, Gurjot; Ellis, Stephen R.; Swan, J. Edward

doi:10.1109/tvcg.2018.2869729

Cited by 58 publications

(54 citation statements)

References 46 publications

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“…An explanation for this phenomenon is that collimating optics cause eyes' vergence angle to rotate outward by a constant angular amount. Singh et al's experiment confirmed these results and showed that the bias of vergence angle bias is constant within distances of 33.3 to 50 cm when the subjects match virtual targets in AR. They also found that presenting AR objects at the AR display's focal distance results in more accurate depth matches.…”

Section: Related Workmentioning

confidence: 78%

Influence of virtual objects' shadows and lighting coherence on distance perception in optical see‐through augmented reality

et al. 2019

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This paper focuses on how virtual objects' shadows as well as differences in alignment between virtual and real lighting influence distance perception in optical see‐through (OST) augmented reality (AR). Four hypotheses are proposed: (H1) Participants underestimate distances in OST AR; (H2) Virtual objects' shadows improve distance judgment accuracy in OST AR; (H3) Shadows with different realism levels have different influence on distance perception in OST AR; (H4) Different levels of lighting misalignment between real and virtual lights have different influence on distance perception in OST AR scenes. Two experiments were designed with an OST head mounted display (HMD), the Microsoft HoloLens. Participants had to match the position of a virtual object displayed in the OST‐HMD with a real target. Distance judgment accuracy was recorded under the different shadows and lighting conditions. The results validate hypotheses H2 and H4 but surprisingly showed no impact of the shape of virtual shadows on distance judgment accuracy thus rejecting hypothesis H3. Regarding hypothesis H1, we detected a trend toward underestimation; given the high variance of the data, more experiments are needed to confirm this result. Moreover, the study also reveals that perceived distance errors and completion time of trials increase along with targets' distance.

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Section: Related Workmentioning

confidence: 78%

Influence of virtual objects' shadows and lighting coherence on distance perception in optical see‐through augmented reality

et al. 2019

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“…Another possible explanation for this phenomenon could rely on luminance. Indeed, luminance has been reported as being a strong factor for depth estimation for real objects [1,4,7] or more recently in AR [25]. More saturated and brighter objects tend to be perceived as nearer than less saturated and bright objects.…”

Section: Discussionmentioning

confidence: 99%

Studying Exocentric Distance Perception in Optical See-Through Augmented Reality

Peillard

Argelaguet²,

Normand

et al. 2019

2019 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

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Figure 1: Left, bench displaying two real spheres. The hinge-actuated moving panel, opened here, could be automatically opened/closed to reveal/hide the visual stimuli. Center, one of the two rails of the bench, seen from behind. An orange sphere is attached on top of a trolley that can slide on the rail. The trolley is moved by a stepper motor through a belt. The other half of the bench is symmetrical. Right, participants could provide the perceived exocentric distance by placing two sliding spheres. After the participants placed the spheres the system automatically took a picture of both spheres which was used to measure the distance between both spheres.

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“…Within near-field reaching distances, Singh et al [43] investigated the effects of focal distance, age and brightness when matching the depth between a real and virtual object using an haploscope within distances between 33.5-50 cm in a depth-matching task [46].…”

Section: Perceptual Issues In Ost Hmdsmentioning

confidence: 99%

Effects of Depth Layer Switching between an Optical See-Through Head-Mounted Display and a Body-Proximate Display

Eiberger

Kristensson

Mayr

et al. 2019

Symposium on Spatial User Interaction

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Figure 1: Left: Vision of extending the field of view of body-proximate displays such as a smartwatch through an optical see-through head-mounted display with visual information presented at a uniform depth layer. Right: Visualization of the two depth layers (smartwatch and focal distance of the head-mounted display), which leads to the need of accomodation and vergence changes to integrate information accross both displays. ABSTRACTOptical see-through head-mounted displays (OST HMDs) typically display virtual content at a fixed focal distance while users need to integrate this information with real-world information at different depth layers. This problem is pronounced in body-proximate multidisplay systems, such as when an OST HMD is combined with a smartphone or smartwatch. While such joint systems open up a new design space, they also reduce users' ability to integrate visual information. We quantify this cost by presenting the results of an experiment (n=24) that evaluates human performance in a visual search task across an OST HMD and a body-proximate display at 30 cm. The results reveal that task completion time increases significantly by approximately 50% and the error rate increases significantly by approximately 100% compared to visual search on a single depth layer. These results highlight a design trade-off when designing joint OST HMD-body proximate display systems.• Human-centered computing → Empirical studies in HCI.

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The Effect of Focal Distance, Age, and Brightness on Near-Field Augmented Reality Depth Matching

Cited by 58 publications

References 46 publications

Influence of virtual objects' shadows and lighting coherence on distance perception in optical see‐through augmented reality

Influence of virtual objects' shadows and lighting coherence on distance perception in optical see‐through augmented reality

Studying Exocentric Distance Perception in Optical See-Through Augmented Reality

Effects of Depth Layer Switching between an Optical See-Through Head-Mounted Display and a Body-Proximate Display

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