Proceedings of the ACM Symposium on Applied Perception最新文献_第2页

Effects of location and fade-in time of (audio-)visual cues on response times and success-rates in a dual-task experiment 双任务实验中(视听)线索的位置和消失时间对反应时间和成功率的影响

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2017-09-16 DOI: 10.1145/3119881.3119894

Andreas Löcken, Sarah Blum, Tim Claudius Stratmann, Uwe Gruenefeld, Wilko Heuten, Susanne CJ Boll, S. Par

引用次数: 8

Acquisition of survey knowledge using walking in place and resetting methods in immersive virtual environments 在沉浸式虚拟环境中使用原地行走和重置方法获取调查知识

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2017-09-16 DOI: 10.1145/3119881.3119889

Richard A. Paris, Miti Joshi, Qiliang He, G. Narasimham, T. McNamara, Bobby Bodenheimer

{"title":"Acquisition of survey knowledge using walking in place and resetting methods in immersive virtual environments","authors":"Richard A. Paris, Miti Joshi, Qiliang He, G. Narasimham, T. McNamara, Bobby Bodenheimer","doi":"10.1145/3119881.3119889","DOIUrl":"https://doi.org/10.1145/3119881.3119889","url":null,"abstract":"Locomotion in large virtual environments is currently unsupported in smartphone-powered virtual reality headsets, particularly within the confines of limited physical space. While motion controllers are a workaround for this issue, they exhibit known problems: they occupy the subject's hands, and they cause poor navigation performance. In this paper, we investigate three hands-free methods for navigating large virtual environments. The first method is resetting, a reorientation technique that allows for both translation and rotation body-based cues. The other two methods are walking in place techniques that use only rotation-based cues. In the first walking in place technique, we make use of the inertial measurement unit of the smartphone embedded in a Samsung Gear VR to detect when subjects are stepping. The second technique uses the Kinect's skeletal tracking for step detection. In this paper, we measure the survey component of spatial knowledge to assess three navigation conditions. Our metrics examine how well subjects gather and retain information from their environment, as well as how well they integrate it into a single model. We find that resetting leads to the strongest acquisition of survey knowledge, which we believe is due to the vestibular cues provided by this method.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130129259","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: 15

How character customization affects learning in computational thinking 角色定制如何影响计算思维中的学习

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2017-09-16 DOI: 10.1145/3119881.3119884

Lorraine Lin, Dhaval Parmar, Sabarish V. Babu, Alison E. Leonard, S. Daily, S. Jörg

{"title":"How character customization affects learning in computational thinking","authors":"Lorraine Lin, Dhaval Parmar, Sabarish V. Babu, Alison E. Leonard, S. Daily, S. Jörg","doi":"10.1145/3119881.3119884","DOIUrl":"https://doi.org/10.1145/3119881.3119884","url":null,"abstract":"The ability to select or customize characters in educational applications and games has been shown to influence factors related to learning effects such as transfer, self-efficacy, and motivation. Most previous conclusions on the perception of virtual characters and the effect of character assignment in interactive applications have been reached through short, one-task experiments. To investigate more long-term effects of assigning versus customizing characters as well as explore perceptions of personal character appearance, we conduct a study in which sixth and seventh grade students are introduced to programming concepts with the software VEnvI (Virtual Environment Interactions) in seven one-hour sessions over two weeks. In VEnvI, students create performances for virtual characters by assembling blocks. With a between-subjects design, in which some of the students can alter their character and others are not given that possibility, we examine the influence of the presence or absence of character choice options on learning. We hypothesize that students have higher learning outcomes when they can choose and customize how their character looks compared to when they are assigned a character. We confirm this hypothesis for a category of learning (Remember and Understand) and give insights on students' relationships with their character.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125724683","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: 21

Do I trust you, abstract creature?: a study on personality perception of abstract virtual faces 我相信你吗，抽象的生物?:抽象虚拟面孔的人格知觉研究

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931014

Ylva Ferstl, Elena Kokkinara, R. Mcdonnell

{"title":"Do I trust you, abstract creature?: a study on personality perception of abstract virtual faces","authors":"Ylva Ferstl, Elena Kokkinara, R. Mcdonnell","doi":"10.1145/2931002.2931014","DOIUrl":"https://doi.org/10.1145/2931002.2931014","url":null,"abstract":"Studies in the field of social psychology have shown evidence that the dimensions of human facial features can directly impact the perception of personality of that human. Traits such as aggressiveness, trustworthiness and dominance have been directly correlated with facial features. If the same correlations were true for virtual faces, this could be a valuable design guideline to direct the creation of characters with intended personalities. In particular, this is relevant for extremely abstract characters that have minimal facial features (often seen in video games and movies), and rely heavily on these features for portraying personality. We conducted an exploratory study in order to retrieve insights about the way certain facial features affect the perceived personality, as well as affinity of very abstract virtual faces. We specifically tested the effect of different head shapes, eye shapes and eye sizes. Interestingly, our findings show that the same rules for real human faces do not apply to the perception of abstract faces, and in some cases are the complete reverse. These results provide us with a better understanding of the perception of abstract virtual faces, and a starting point for the creation of guidelines for how to portray personality using minimal facial cues.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122622448","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: 10

Seeing jelly: judging elasticity of a transparent object 视胶:判断透明物体的弹性

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931008

Takahiro Kawabe, S. Nishida

{"title":"Seeing jelly: judging elasticity of a transparent object","authors":"Takahiro Kawabe, S. Nishida","doi":"10.1145/2931002.2931008","DOIUrl":"https://doi.org/10.1145/2931002.2931008","url":null,"abstract":"Taking advantage of computer graphics technologies, recent psychophysical study on material perception has revealed how human vision estimates the mechanical property of objects, such as liquid viscosity, from image features. Here we consider how human perceive another important mechanical material property --- elasticity. We simulated scenes in which a transparent cube falling on the floor, while manipulating the elasticity of the cube. We asked observers to rate the elasticity using a 5-point scale. Human observers were quite sensitive to the change in the simulated elasticity of the cube. In comparison with the original condition, the elasticity was overestimated when only the cube contour deformation was visible, whereas underestimated when the cube contour deformation was hidden and only internal optical deformation was visible. The effects of contour and optical deformations on elasticity rating were almost the same when the observers viewed white noise fields that reproduced the optical flow fields of the cube movies. Increasing frame duration (which decreased image speed) also increased the apparent elasticity. These results suggest that human elasticity judgment is based on the pattern of image motion arising from contour and optical deformations. This scientific finding may provide a hint for computationally efficient rendering of perceptually realistic dynamic scenes.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126357562","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: 18

Proceedings of the ACM Symposium on Applied Perception 美国计算机学会应用感知研讨会论文集

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002

Eakta Jain, Sophie Joerg

引用次数: 1

Color appearance modeling in augmented reality 增强现实中的色彩外观建模

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948719

Nargess Hassani, M. Murdoch

引用次数: 3

Revisiting detection thresholds for redirected walking: combining translation and curvature gains 重定向行走的重访检测阈值:结合平移和曲率增益

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931018

Timofey Grechkin, Jerald Thomas, Mahdi Azmandian, M. Bolas, Evan A. Suma

{"title":"Revisiting detection thresholds for redirected walking: combining translation and curvature gains","authors":"Timofey Grechkin, Jerald Thomas, Mahdi Azmandian, M. Bolas, Evan A. Suma","doi":"10.1145/2931002.2931018","DOIUrl":"https://doi.org/10.1145/2931002.2931018","url":null,"abstract":"Redirected walking enables the exploration of large virtual environments while requiring only a finite amount of physical space. Unfortunately, in living room sized tracked areas the effectiveness of common redirection algorithms such as Steer-to-Center is very limited. A potential solution is to increase redirection effectiveness by applying two types of perceptual manipulations (curvature and translation gains) simultaneously. This paper investigates how such combination may affect detection thresholds for curvature gain. To this end we analyze the estimation methodology and discuss selection process for a suitable estimation method. We then compare curvature detection thresholds obtained under different levels of translation gain using two different estimation methods: method of constant stimuli and Green's maximum likelihood procedure. The data from both experiments shows no evidence that curvature gain detection thresholds were affected by the presence of translation gain (with test levels spanning previously estimated interval of undetectable translation gain levels). This suggests that in practice currently used levels of translation and curvature gains can be safely applied simultaneously. Furthermore, we present some evidence that curvature detection thresholds may be lower that previously reported. Our estimates indicate that users can be redirected on a circular arc with radius of either 11.6m or 6.4m depending on the estimation method vs. the previously reported value of 22m. These results highlight that the detection threshold estimates vary significantly with the estimation method and suggest the need for further studies to define efficient and reliable estimation methodology.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132994496","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: 118

Emotion recognition in autism spectrum disorder: does stylization help? 自闭症谱系障碍的情绪识别:程式化有帮助吗?

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931004

Marc Spicker, Diana Arellano, U. Schaller, R. Rauh, V. Helzle, O. Deussen

引用次数: 4

Embodied visuo-locomotive experience analysis: immersive reality based summarisation of experiments in environment-behaviour studies 具身视觉机车体验分析:环境行为研究中基于沉浸式现实的实验总结

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948720

M. Bhatt, Jakob Suchan, Vasiliki Kondyli, C. Schultz

引用次数: 6