Proceedings of the 2020 ACM Symposium on Spatial User Interaction最新文献_第4页

The Effect of Spatial Reference on Visual Attention and Workload during Viewpoint Guidance in Augmented Reality 增强现实视点引导中空间参考对视觉注意力和工作负荷的影响

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418449

Daniela Markov-Vetter, M. Luboschik, A. T. Islam, P. Gauger, O. Staadt

{"title":"The Effect of Spatial Reference on Visual Attention and Workload during Viewpoint Guidance in Augmented Reality","authors":"Daniela Markov-Vetter, M. Luboschik, A. T. Islam, P. Gauger, O. Staadt","doi":"10.1145/3385959.3418449","DOIUrl":"https://doi.org/10.1145/3385959.3418449","url":null,"abstract":"Considering human capability for spatial orientation and navigation, the visualization used to support the localization of off-screen targets inevitably influences the visual-spatial processing that relies on two frameworks. So far it is not proven which frame of reference, egocentric or exocentric, contributes most to efficient viewpoint guidance in a head-mounted Augmented Reality environment. This could be justified by the lack of objectively assessing the allocation of attention and mental workload demanded by the guidance method. This paper presents a user study investigating the effect of egocentric and exocentric viewpoint guidance on visual attention and mental workload. In parallel to a localization task, participants had to complete a divided attention task using the oddball paradigm. During task fulfilment, the heart rate variability was measured to determine the physiological stress level. The objective assessment of mental workload was supplemented by subjective ratings using the NASA TLX. The results show that egocentric viewpoint guidance leads to most efficient target cueing in terms of faster localization, higher accuracy and slower self-reported workload. In addition, egocentric target cueing causes a slight decrease in physiological stress and enables faster recognition of simultaneous events, although visual attention seemed to be covertly oriented.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131646727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Tangible VR: Traversing Space in XR to Grow a Virtual Butterfly 有形的VR:在XR中穿越空间生长虚拟蝴蝶

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3421720

Jiaqi Zhang, B. L. Silva

引用次数: 1

RayGraphy: Aerial Volumetric Graphics Rendered Using Lasers in Fog 射线图:在雾中使用激光渲染的空中体积图形

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418446

Wataru Yamada, H. Manabe, Daizo Ikeda, J. Rekimoto

{"title":"RayGraphy: Aerial Volumetric Graphics Rendered Using Lasers in Fog","authors":"Wataru Yamada, H. Manabe, Daizo Ikeda, J. Rekimoto","doi":"10.1145/3385959.3418446","DOIUrl":"https://doi.org/10.1145/3385959.3418446","url":null,"abstract":"We present RayGraphy display technology that renders volumetric graphics by superimposing the trajectories of lights in indoor space filled with fog. Since the traditional FogScreen approach requires the shaping of a thin layer of fog, it can only show two-dimensional images in a narrow range that is close to the fog-emitting nozzle. Although a method that renders volumetric graphics with plasma generated using high-power laser was also proposed, its operation in a public space is considered quite dangerous. The proposed system mainly comprises dozens of laser projectors circularly arranged in a fog-filled space, and renders volumetric graphics in a fog by superimposing weak laser beams from the projectors. Compared to the conventional methods, this system employing weak laser beams and the non-shaped innocuous fog is more scalable and safer. We aim to construct a new spatial augmented reality platform where computer-generated images can be drawn directly in the real world. We implement a prototype that consists of 32 laser projectors and a fog machine. Moreover, we evaluate and discuss the system performance and characteristics in experiments.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129834757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Augmented Unlocking Techniques for Smartphones Using Pre-Touch Information 使用预触控信息的智能手机增强解锁技术

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2019-08-24 DOI: 10.1145/3385959.3418455

Matthew Lakier, Dimcho Karakashev, Yixin Wang, I. Goldberg

引用次数: 1