Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization最新文献_第3页

Evaluation of field of view calibration techniques for head-mounted displays 头戴式显示器的视场校准技术评价

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077488

C. Walter, G. Bruder, Benjamin Bolte, Frank Steinicke

引用次数: 2

Perceiving alterations in trajectories while throwing in a virtual environment 在虚拟环境中投掷时感知轨迹的变化

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077456

Erin A. McManus, Qiufeng Lin, Aysu Erdemir, Stephen W. Bailey, J. Rieser, Bobby Bodenheimer

{"title":"Perceiving alterations in trajectories while throwing in a virtual environment","authors":"Erin A. McManus, Qiufeng Lin, Aysu Erdemir, Stephen W. Bailey, J. Rieser, Bobby Bodenheimer","doi":"10.1145/2077451.2077456","DOIUrl":"https://doi.org/10.1145/2077451.2077456","url":null,"abstract":"The trend in immersive virtual environments (VEs) is to include the users in a more active role by having them interact with the environment and objects within the environment. Studying action and perception in VEs, then, becomes an increasingly interesting and important topic to study. We chose to study a user's ability to judge errors in self-produced motion; more specifically, we had users throw a ball underhanded and, using a two alternative forced choice procedure, had them judge the fidelity of the trajectory of their throws. We chose throwing because it is a fairly common activity that many people have experience with and also so that we could model our study on previous research [Reitsma and Pollard 2003; Reitsma et al. 2008]. We changed the trajectories of the throws with three perturbations by altering both the vertical and horizontal components of the ball's initial velocity and also by changing the magnitude of the gravity acting on the ball over the course of its flight. All three perturbations were added in both positive and negative directions. Discrimination thresholds were determined for each subject using a maximum likelihood function and from these thresholds we were able to form some conclusions about users' ability to perceive errors in motion caused by their actions. Unlike Reitsma et. al. [2003; 2008], there was no difference between a user's ability to perceive alterations in the vertical and horizontal velocities of the ball's motion, regardless of direction. Also, lower gravities were marginally easier to detect than higher gravities.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"37 1","pages":"23-28"},"PeriodicalIF":0.0,"publicationDate":"2011-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85848528","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

The role of contrast in the perceived depth of monocular imagery 对比度在单目图像感知深度中的作用

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077478

Allan G. Rempel, W. Heidrich, Rafał K. Mantiuk

引用次数: 11

Subtle gaze manipulation for improved mammography training 微妙的凝视操纵，以改善乳房x光检查训练

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077475

S. Sridharan, Reynold J. Bailey, Ann McNamara, C. Grimm

引用次数: 27

Towards perceptual quality evaluation of dynamic meshes 动态网格的感知质量评价

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077479

Fakhri Torkhani, K. Wang, Annick Montanvert

{"title":"Towards perceptual quality evaluation of dynamic meshes","authors":"Fakhri Torkhani, K. Wang, Annick Montanvert","doi":"10.1145/2077451.2077479","DOIUrl":"https://doi.org/10.1145/2077451.2077479","url":null,"abstract":"In practical applications, it is common that a 3D mesh undergoes some lossy operations (e.g. simplification, watermarking, compression, noise contamination, etc.). Since the end users of 3D meshes are often human beings, it is thus important to derive metrics that can faithfully assess the perceptual distortions induced by these operations. The derived metrics can be used, for instance, to benchmark a family of geometry processing algorithms, or to guide the design of new algorithms. Like in the case of image quality assessment, metrics based on mesh geometric distances (e.g. Haus-dorff distance and root mean squared error) cannot correctly predict the visual quality degradation. Recently, several perceptually-motivated metrics have been proposed (e.g. mesh structural distortion measure and roughness-based measures) [Lavoué and Corsini 2010]. Those perceptual metrics work well on static meshes, but are less efficient on dynamic meshes because they may mistakenly evaluate \"natural\" deformations as of rather low perceptual quality (c.f. Section 3). Based on the fact that surface movements in a dynamic mesh sequence are often defined as quasi-isometric deformations (especially in the case of human body and animals animations), we propose in this poster a perceptually-driven mesh quality metric that is capable of distinguishing quasi-isometric deformations from the actual visually unpleasant distortions. To the best of our knowledge, such a metric does not exist in the literature.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"29 1","pages":"116"},"PeriodicalIF":0.0,"publicationDate":"2011-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78414881","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

Peripheral visual information and its effect on distance judgments in virtual and augmented environments 周边视觉信息及其对虚拟和增强环境中距离判断的影响

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077457

J. A. Jones, S. Ellis, J. Swan, Gurjot Singh, S. Ellis, M. S. University, N. Ames

引用次数: 68

A high bit depth digital imaging pipeline for vision research 用于视觉研究的高位深度数字成像管道

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077484

Timo Kunkel, G. Damberg, L. Johnson

引用次数: 3

A gaze-contingent reading tutor program for children with developmental dyslexia 一项针对发展性阅读障碍儿童的注视性阅读辅导计划

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077480

Nicolas Schneider, M. Dorr, L. Pomârjanschi, E. Barth

引用次数: 5

Measuring gaze depth with an eye tracker during stereoscopic display 用眼动仪测量立体显示时的凝视深度

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077454

A. Duchowski, Brandon Pelfrey, D. House, Rui I. Wang

{"title":"Measuring gaze depth with an eye tracker during stereoscopic display","authors":"A. Duchowski, Brandon Pelfrey, D. House, Rui I. Wang","doi":"10.1145/2077451.2077454","DOIUrl":"https://doi.org/10.1145/2077451.2077454","url":null,"abstract":"While determining 2D gaze position using eye tracking is common practice, the efficacy of using eye tracking to measure 3D gaze point in a stereoscopic display has not been carefully studied. In this paper we explore this issue using a custom Wheatstone stereoscope augmented with an eye tracker. In a pilot study, we showed that there is strong evidence that eye vergence measurements do, in fact, track the depth component of the 3D stereo gaze point. In a subsequent full study, we compare depth estimation for a scene viewed in four different ways: without either stereo or motion parallax, without stereo but with motion parallax, with stereo but without motion parallax, and with both stereo and motion parallax. We show a significant effect related to depth from eye vergence for both of the stereo cases, but no effect for the monoscopic cases. Since depth from vergence is very noisy, we use a Butterworth filter to smooth the data and show that this greatly improves the stability of the depth reading without significant lag or loss in accuracy. We also demonstrate that using quadratic regression to perform a depth calibration can greatly improve the accuracy of the depth measurement.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"12 1","pages":"15-22"},"PeriodicalIF":0.0,"publicationDate":"2011-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78300805","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: 49

Perception of simplification artifacts for animated characters 动画角色简化工件的感知

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2011-08-27 DOI: 10.1145/2077451.2077469

M. Larkin, C. O'Sullivan

引用次数: 21