Proceedings of the 2020 ACM Symposium on Spatial User Interaction最新文献_第2页

Eye Gaze-based Object Rotation for Head-mounted Displays 头戴式显示器的基于眼睛注视的对象旋转

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418444

Chang Liu, J. Orlosky, Alexander Plopski

{"title":"Eye Gaze-based Object Rotation for Head-mounted Displays","authors":"Chang Liu, J. Orlosky, Alexander Plopski","doi":"10.1145/3385959.3418444","DOIUrl":"https://doi.org/10.1145/3385959.3418444","url":null,"abstract":"Hands-free manipulation of 3D objects has long been a challenge for augmented and virtual reality (AR/VR). While many methods use eye gaze to assist with hand-based manipulations, interfaces cannot yet provide completely gaze-based 6 degree-of-freedom (DoF) manipulations in an efficient manner. To address this problem, we implemented three methods to handle rotations of virtual objects using gaze, including RotBar: a method that maps line-of-sight eye gaze onto per-axis rotations, RotPlane: a method that makes use of orthogonal planes to achieve per-axis angular rotations, and RotBall: a method that combines a traditional arcball with an external ring to handle user-perspective roll manipulations. We validated the efficiency of each method by conducting a user study involving a series of orientation tasks along different axes with each method. Experimental results showed that users could accomplish single-axis orientation tasks with RotBar and RotPlane significantly faster and more accurate than RotBall. On the other hand for multi-axis orientation tasks, RotBall significantly outperformed RotBar and RotPlane in terms of speed and accuracy.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"78 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":"132030326","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: 4

A First Pilot Study to Compare Virtual Group Meetings using Video Conferences and (Immersive) Virtual Reality 比较使用视频会议和(沉浸式)虚拟现实的虚拟小组会议的第一个试点研究

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3422699

Frank Steinicke, N. Lehmann-Willenbrock, A. Meinecke

引用次数: 18

Towards a Specification Language for Spatial User Interaction 面向空间用户交互的规范语言

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3424278

Khadidja Chaoui, S. Bouzidi-Hassini, Y. Bellik

引用次数: 2

Substituting Teleportation Visualization for Collaborative Virtual Environments 协同虚拟环境中隐形传态可视化的替代

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3422698

Santawat Thanyadit, Parinya Punpongsanon, Thammathip Piumsomboon, T. Pong

引用次数: 3

Temporal Manipulation Interface of Motion Data for Movement Observation in a Personal Training 面向个人训练中运动观察的运动数据时间操作界面

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3422696

Natsuki Hamanishi, J. Rekimoto

引用次数: 2

Exploring the Limitations of Environment Lighting on Optical See-Through Head-Mounted Displays 探索光学透明头戴式显示器环境照明的局限性

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418445

A. Erickson, Kangsoo Kim, G. Bruder, G. Welch

{"title":"Exploring the Limitations of Environment Lighting on Optical See-Through Head-Mounted Displays","authors":"A. Erickson, Kangsoo Kim, G. Bruder, G. Welch","doi":"10.1145/3385959.3418445","DOIUrl":"https://doi.org/10.1145/3385959.3418445","url":null,"abstract":"Due to the additive light model employed by most optical see-through head-mounted displays (OST-HMDs), they provide the best augmented reality (AR) views in dark environments, where the added AR light does not have to compete against existing real-world lighting. AR imagery displayed on such devices loses a significant amount of contrast in well-lit environments such as outdoors in direct sunlight. To compensate for this, OST-HMDs often use a tinted visor to reduce the amount of environment light that reaches the user’s eyes, which in turn results in a loss of contrast in the user’s physical environment. While these effects are well known and grounded in existing literature, formal measurements of the illuminance and contrast of modern OST-HMDs are currently missing. In this paper, we provide illuminance measurements for both the Microsoft HoloLens 1 and its successor the HoloLens 2 under varying environment lighting conditions ranging from 0 to 20,000 lux. We evaluate how environment lighting impacts the user by calculating contrast ratios between rendered black (transparent) and white imagery displayed under these conditions, and evaluate how the intensity of environment lighting is impacted by donning and using the HMD. Our results indicate the further need for refinement in the design of future OST-HMDs to optimize contrast in environments with illuminance values greater than or equal to those found in indoor working environments.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"5 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":"130572287","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: 35

Evaluating Interaction Cue Purpose and Timing for Learning and Retaining Virtual Reality Training 评估学习和保留虚拟现实培训的交互提示目的和时间

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418448

Xinyu Hu, Alec G. Moore, J. C. Eubanks, Afham Ahmed Aiyaz, Ryan P. McMahan

{"title":"Evaluating Interaction Cue Purpose and Timing for Learning and Retaining Virtual Reality Training","authors":"Xinyu Hu, Alec G. Moore, J. C. Eubanks, Afham Ahmed Aiyaz, Ryan P. McMahan","doi":"10.1145/3385959.3418448","DOIUrl":"https://doi.org/10.1145/3385959.3418448","url":null,"abstract":"Interaction cues inform users about potential actions to take. Tutorials, games, educational systems, and training applications often employ interaction cues to direct users to take specific actions at particular moments. Prior studies have investigated many aspects of interaction cues, such as the feedforward and perceived affordances that often accompany them. However, two less-researched aspects of interaction cues include the effects of their purpose (i.e., the type of task conveyed) and their timing (i.e., when they are presented). In this paper, we present a study that evaluates the effects of interaction cue purpose and timing on performance while learning and retaining tasks with a virtual reality (VR) training application. Our results indicate that participants retained manipulation tasks significantly better than travel or selection tasks, despite both being significantly easier to complete than the manipulation tasks. Our results also indicate that immediate interaction cues afforded significantly faster learning and better retention than delayed interaction cues.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"114 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":"131844028","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

Extend, Push, Pull: Smartphone Mediated Interaction in Spatial Augmented Reality via Intuitive Mode Switching 延伸，推，拉:智能手机在空间增强现实中通过直观模式切换的交互作用

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418456

Jeremy J. Hartmann, Aakar Gupta, Daniel Vogel

{"title":"Extend, Push, Pull: Smartphone Mediated Interaction in Spatial Augmented Reality via Intuitive Mode Switching","authors":"Jeremy J. Hartmann, Aakar Gupta, Daniel Vogel","doi":"10.1145/3385959.3418456","DOIUrl":"https://doi.org/10.1145/3385959.3418456","url":null,"abstract":"We investigate how smartphones can be used to mediate the manipulation of smartphone-based content in spatial augmented reality (SAR). A major challenge here is in seamlessly transitioning a phone between its use as a smartphone to its use as a controller for SAR. Most users are familiar with hand extension as a way for using a remote control for SAR. We therefore propose to use hand extension as an intuitive mode switching mechanism for switching back and forth between the mobile interaction mode and the spatial interaction mode. Based on this intuitive mode switch, our technique enables the user to push smartphone content to an external SAR environment, interact with the external content, rotate-scale-translate it, and pull the content back into the smartphone, all the while ensuring no conflict between mobile interaction and spatial interaction. To ensure feasibility of hand extension as mode switch, we evaluate the classification of extended and retracted states of the smartphone based on the phone’s relative 3D position with respect to the user’s head while varying user postures, surface distances, and target locations. Our results show that a random forest classifier can classify the extended and retracted states with a 96% accuracy on average.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"131 1-2 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":"123574388","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

Automatic Generation of Spatial Tactile Effects by Analyzing Cross-modality Features of a Video 通过分析视频的交叉模态特征自动生成空间触觉效果

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418459

Kai Zhang, Lawrence H. Kim, Yipeng Guo, Sean Follmer

{"title":"Automatic Generation of Spatial Tactile Effects by Analyzing Cross-modality Features of a Video","authors":"Kai Zhang, Lawrence H. Kim, Yipeng Guo, Sean Follmer","doi":"10.1145/3385959.3418459","DOIUrl":"https://doi.org/10.1145/3385959.3418459","url":null,"abstract":"Tactile effects can enhance user experience of multimedia content. However, generating appropriate tactile stimuli without any human intervention remains a challenge. While visual or audio information has been used to automatically generate tactile effects, utilizing cross-modal information may further improve the spatiotemporal synchronization and user experience of the tactile effects. In this paper, we present a pipeline for automatic generation of vibrotactile effects through the extraction of both the visual and audio features from a video. Two neural network models are used to extract the diegetic audio content, and localize a sounding object in the scene. These models are then used to determine the spatial distribution and the intensity of the tactile effects. To evaluate the performance of our method, we conducted a user study to compare the videos with tactile effects generated by our method to both the original videos without any tactile stimuli and videos with tactile effects generated based on visual features only. The study results demonstrate that our cross-modal method creates tactile effects with better spatiotemporal synchronization than the existing visual-based method and provides a more immersive user experience.","PeriodicalId":157249,"journal":{"name":"Proceedings of the 2020 ACM Symposium on Spatial User Interaction","volume":"49 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":"126094608","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: 3

Mission Impossible Spaces: Using Challenge-Based Distractors to Reduce Noticeability of Self-Overlapping Virtual Architecture 不可能的任务空间:使用基于挑战的干扰来降低自重叠虚拟建筑的可注意性

Proceedings of the 2020 ACM Symposium on Spatial User Interaction Pub Date : 2020-10-30 DOI: 10.1145/3385959.3418453

Claudiu-Bogdan Ciumedean, Cristian Patras, Mantas Cibulskis, Norbert Váradi, N. C. Nilsson

引用次数: 9