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检索条件"主题词=Visualization Design and evaluation methods"

共 222 条记录，以下是31-40 订阅

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Topological Analysis and Approximate Identification of Leading Lines in Artworks Based on Discrete Morse Theory

Topological Analysis and Approximate Identification of Leadi...

引用

IEEE Conference on visualization and Visual Analytics (IEEE VIS)

作者： Shibasaki, Fuminori Fujishiro, Issei Keio Univ Keio Japan

ISBN: (纸本)9798350325577

Accomplished artists often incorporate leading lines into their compositions to guide the observer's attention. Although saliency maps are typically employed to locate attractive regions in still images, such scalar features do not express the trajectory of an observer's gaze. In this study, we propose a method for the visual analysis and approximate identification of leading lines based on maximum graphs, sparse subsets of Morse-Smale complexes, extracted from saliency maps. We provide empirical evidence substantiating the feasibility of our method through a comparison with actual observers' eye tracking results. Further, we investigate the limitations of our approach by employing it to analyze a variety of art works with diverse styles.

关键词： Human-centered computing visualization visualization design and evaluation methods

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Investigating Psychological Ownership in a Shared AR Space: Effects of Human and Object Reality and Object Controllability 22

Investigating Psychological Ownership in a Shared AR Space: ...

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22nd IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Han, Dongyun Kim, Donghoon Kim, Kangsoo Cho, Isaac Utah State Univ Logan UT 84322 USA Univ Calgary Calgary AB Canada

ISBN: (纸本)9798350328387

Augmented reality (AR) provides users with a unique social space where virtual objects are natural parts of the real world. The users can interact with 3D virtual objects and virtual humans projected onto the physical environment. This work examines perceived ownership based on the reality of objects and partners, as well as object controllability in a shared AR setting. Our formal user study with 28 participants shows a sense of possession, control, separation, and partner presence affect their perceived ownership of a shared object. Finally, we discuss the findings and present a conclusion.

关键词： Human-centered computing visualization visualization techniques Treemaps Human-centered computing visualization visualization design and evaluation methods

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Auxiliary Means to Improve Motion Guidance Memorability in Extended Reality

Auxiliary Means to Improve Motion Guidance Memorability in E...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Gebhardt, Patrick Weiss, Maximilian Huszar, Pascal Yu, Xingyao Achberger, Alexander Zhang, Xiaobing Sedlmair, Michael Univ Stuttgart Stuttgart Germany Mercedes Benz AG Stuttgart Germany China Mobile Jiangxi Virtual Real Technol Co Ltd Nanchang Jiangxi Peoples R China

ISBN: (纸本)9798350348392

VR-based motion guidance systems can provide 3D movement instructions and real-time feedback for practicing movement without a live instructor. However, the precise visualization of movement paths or postures may be insufficient to learn a new motor skill, as they might make users too dependent and lead to poor performance when there is no guidance. In this paper, we propose to use enhanced error visualization, asymptotic path, increasing transparency, and haptic constraint to improve the memorability of motion guidance. Our study results indicated that adding an enhanced error feedback visualization helped the users with short-term retention.

关键词： Human-centered computing visualization visualization design and evaluation methods

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Ohm VR: solving electronics escape room challenges on the roadmap towards gamified STEAM education

Ohm VR: solving electronics escape room challenges on the ro...

引用

30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Zamojski, Piotr Barczyk, Norbert Frankowski, Marek Cybulski, Artur Nakonieczny, Konrad Makowiec, Marek Igras-Cybulska, Magdalena AGH Univ Sci & Technol Krakow Poland Krakow Univ Econ Krakow Poland

ISBN: (纸本)9798350348392

We present a prototype of VR application containing puzzles inspired by Electronics and Telecommunication classes validated qualitatively. The design utilizes escape room mechanics and the application features 3 levels: solving resistors circuits. amplifier circuit and the network configuration. It is implemented with Unity for Meta Quest 2 platform. The experience lasts about 30-45 minutes. It was evaluated by usability and user experience tests conducted with N=5 users. Learning outcome and knowledge retention was measured with a pre-test and post-test.

关键词： Virtual reality Education Gamilication Electronics STEAM Escape room visualization design and evaluation methods

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A Graph -based Error Correction Model Using Lie -algebraic Cohomology and Its Application on Global Consistent Indoor Scene Reconstruction

A Graph -based Error Correction Model Using Lie -algebraic C...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Ren, Yuxue Jiang, Baowei Chen, Wei Lei, Na Gu, Xianfeng Capital Normal Univ Acad Multidisciplinary Studies Beijing Peoples R China Capital Normal Univ Beijing Adv Innovat Ctr Imaging Theory & Technol Beijing Peoples R China Dalian Univ Technol DUT RU ISE Dalian Peoples R China SUNY Stony Brook Stony Brook NY 11794 USA

ISBN: (纸本)9798350348392

We present a novel, effective method for global indoor scene reconstruction problems by geometric topology. Based on point cloud pairwise registration methods (e.g ICP) or IMU, we focus on the problem of accumulated error for the composition of transformations along any loops. The major technical contribution of this paper is a linear method for the graph optimation, using only solving a Poisson equation. We demonstrate the consistency of our method from Ilodge-Ilelmhotz decomposition theorem and experiments on multiple RGBD datasets of indoor scene. The experimental results also demonstrate that our global registration method runs quickly and provides accurate reconstructions.

关键词： Human-centered computing visualization visualization techniques 3D Scene Reconstruction Human-centered computing visualization visualization design and evaluation methods Modeling and simulation

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design and evaluation of Visual Cues for Restoring and Guiding Visual Attention in Eye-Tracked VR

Design and Evaluation of Visual Cues for Restoring and Guidi...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Woodworth, Jason W. Yoshimura, Andrew Lipari, Nicholas G. Borst, Christoph W. Univ Louisiana Lafayette CACS VR Lab Lafayette LA 70504 USA

ISBN: (纸本)9798350348392

Distraction can be a problem in VR training environments. We investigate 9 visual cues intended to guide or restore attention to objects of interest to mitigate distraction, A survey of related literature suggests a past focus on "search and selection" tasks to evaluate a cue's capability for guidance. We compare this to a new type of task that focuses on how to restore attention when a short distraction (e.g. a notification) shifts focus away from an object, Our study includes a guidance task in which subjects gaze at objects in a randomized order and a restoration task in which gaze sequences are interrupted by distraction events after which gaze must be returned to an object. Factors such as object spacing, gaze dwell time, and distraction distance and duration are varied. The results reveal different patterns of cue effectiveness for the restoration task than for conventional guidance. This may be attributed to knowledge that subjects have about the location of the object from which they were distracted. One implication for more complex distraction tasks considers that we expect them to be between the short distraction and regular guidance in terms of memory of object position. So, we speculate cue performance for other tasks would vary between the shod distraction and guidance results. For restoration, some cues add complexity that reduces, rather than improves, performance. In addition to revealing the differences between guidance and restoration performance of cues, substantial depth is added beyond prior work by the broader range of conditions and cues included.

关键词： Human-centered computing Human computer interaction (HCI) HCI design and evaluation methods User studies Human-centered computing visualization visualization design and evaluation methods

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Towards an Edge Cloud Based Coordination Platform for Multi -User AR Applications Built on Open -Source SLAMs

Towards an Edge Cloud Based Coordination Platform for Multi ...

引用

30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Sonkoly, Balazs Nagy, Balint Gyorgy Doka, Janos Kecskes-Solymosi, Zsofia Czentye, Janos Formanek, Bence Jocha, David Gero, Balazs Peter Budapest Univ Technol & Econ Fac Elect Engn & Informat Dept Telecommun & Media Informat HSN Lab Budapest Hungary MTA BME Network Softwarizat Res Grp Budapest Hungary ELKH BME Cloud Applicat Res Grp Budapest Hungary Ericsson Res Budapest Hungary

ISBN: (纸本)9798350348392

Multi-user and collaborative AR applications pose several challenges. The expected user experience requires accurate pose information for each device and precise synchronization of the respective coordinate systems in real-time. Unlike mobile phones or AR glasses running on battery with constrained resource capacity, cloud and edge platforms can provide the computing power for the core functions under the hood. In this paper, we propose a novel edge cloud based platform for multi-user AR applications realizing an essential coordination service among the users. The latency critical, computation intensive Simultaneous Localization And Mapping (SLAM) function is offloaded from the device to the edge cloud infrastructure.

关键词： Human-centered computing visualization visualization design and evaluation methods

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Motion Analysis and Reconstruction of Human Joint Regions for Sparse RGBD Images

Motion Analysis and Reconstruction of Human Joint Regions fo...

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30th IEEE Conference Virtual Reality and 3D User Interfaces (IEEE VR)

作者： Dong, Tianzhen Bai, Yuntao Zhang, Qing Zhang, Yi Shanghai Inst Technol Sch Comp Sci & Informat Engn Shanghai Peoples R China

ISBN: (纸本)9798350348392

We propose a motion deformation analysis framework that can reconstruct the joint region of dynamic human only depending on extremely sparse RGBD images. In the framework, we analyze the deformation mechanism of the joint region from the perspective of its internal material. The non-rigid deformation of a joint region is transformed into the elastic deformation of multiple elements by introducing Finite Element Method. Considering the influence of joint position on the motion deformation analysis, we optimize the joint positions obtained from skeleton tracking prior. Experimental results verify the rationality and effectiveness of our framework.

关键词： Human-centered computing visualization visualization techniques Treemaps Human-centered computing visualization visualization design and evaluation methods

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Studies of Part-to-Whole Glanceable visualizations on Smartwatch Faces 16

Studies of Part-to-Whole Glanceable Visualizations on Smartw...

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IEEE 16th Pacific visualization Symposium (IEEE PacificVis)

作者： Blascheck, Tanja Besancon, Lonni Bezerianos, Anastasia Lee, Bongshin Islam, Alaul He, Tingying Isenberg, Petra Univ Stuttgart Stuttgart Germany Linkoping Univ Linkoping Sweden Monash Univ Melbourne Vic Australia Univ Paris Saclay CNRS INRIA Gif Sur Yvette France Microsoft Res New York NY USA

ISBN: (纸本)9798350321241

We present three studies that investigate the effectiveness of multiple glanceable part-to-whole proportion representations on smartwatch faces. Our goal was to understand how quickly and accurately people can make judgments about their progress toward multiple goals displayed in a small space. We designed our three studies with increasing external validity. The first study compared bar charts, radial bar charts, and text representations-shown with a digital time display. The second study added an analog time dial as a distractor to increase the complexity of the watch face. To emulate realistic viewing conditions, the third study investigated the effect of viewing angles. In Study 1 bar and radial bar charts outperformed text representations, in Study 2 adding an analog time dial as a distractor did not affect task performance, and in Study 3 only the most extreme angle led to some performance decrease. Supplementary material is available at https://***/ad2z7/.

关键词： Human-centered computing visualization visualization design and evaluation methods

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Effects of Opaque, Transparent and Invisible Hand visualization Styles on Motor Dexterity in a Virtual Reality Based Purdue Pegboard Test 22

Effects of Opaque, Transparent and Invisible Hand Visualizat...

引用

22nd IEEE International Symposium on Mixed and Augmented Reality (ISMAR)

作者： Voisard, Laurent Hatira, Amal Sarac, Mine Kersten-Oertel, Marta Batmaz, Anil Ufuk Concordia Univ Montreal PQ Canada Kadir Has Univ Istanbul Turkiye

ISBN: (纸本)9798350328387

The virtual hand interaction technique is one of the most common interaction techniques used in virtual reality (VR) systems. A VR application can be designed with different hand visualization styles, which might impact motor dexterity. In this paper, we aim to investigate the effects of three different hand visualization styles transparent, opaque, and invisible - on participants' performance through a VR-based Purdue Pegboard Test (PPT). A total of 24 participants were recruited and instructed to place pegs on the board as quickly and accurately as possible. The results indicated that using the invisible hand visualization significantly increased the number of task repetitions completed compared to the opaque hand visualization. However, no significant difference was observed in participants' preference for the hand visualization styles. These findings suggest that an invisible hand visualization may enhance performance in the VR-based PPT, potentially indicating the advantages of a less obstructive hand visualization style. We hope our results can guide developers, researchers, and practitioners when designing novel virtual hand interaction techniques.

关键词： Human-centered computing visualization visualization techniques Treemaps Human-centered computing visualization visualization design and evaluation methods

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