Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization最新文献_第5页

A reassessment of the simultaneous dynamic range of the human visual system 对人类视觉系统同步动态范围的重新评估

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836251

Timo Kunkel, E. Reinhard

引用次数: 81

Spatialized sound influences biomechanical self-motion illusion ("vection") 空间化声音影响生物力学自运动错觉("矢量")

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836280

B. Riecke, Daniel Feuereissen, J. Rieser

引用次数: 5

Can I pass?: using affordances to measure perceived size in virtual environments 我可以过去吗?:使用可视性来衡量虚拟环境中的感知大小

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836259

Michael Geuss, Jeanine K. Stefanucci, Sarah H. Creem-Regehr, W. Thompson

{"title":"Can I pass?: using affordances to measure perceived size in virtual environments","authors":"Michael Geuss, Jeanine K. Stefanucci, Sarah H. Creem-Regehr, W. Thompson","doi":"10.1145/1836248.1836259","DOIUrl":"https://doi.org/10.1145/1836248.1836259","url":null,"abstract":"Perception of an accurate sense of the scale depicted in computer graphics is important for many applications. How to best characterize the accuracy of space perception in computer graphics is a question that does not have a simple answer. This paper describes the use of perceived affordances as a way of measuring the perceptual fidelity of virtual environments with respect to how well they convey information about geometric scale. The methodology involves a verbal indication that a particular action can or cannot be performed in a viewed environment. By varying the spatial structure of the environment, these affordance judgments can be used to probe how accurately viewers are able to perceive action-relevant spatial information. The result is a measure relevant to action, less subject to bias than verbal reports of more primitive properties such as size or distance, and applicable to non-virtual-environment display systems in which the actual action cannot be performed. We demonstrate the approach in an experiment comparing one type of affordance judgment, perceived passability, with judgments of size and distance in matched real world and virtual world environments.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"24 1","pages":"61-64"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74794161","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: 67

Statistical regularities in low and high dynamic range images 低、高动态范围图像的统计规律

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836250

T. Pouli, D. Cunningham, E. Reinhard

引用次数: 18

Perceptual evaluation of illumination effects in virtual environments 虚拟环境中照明效果的感知评价

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836289

Laura Raya, S. Mata, O. D. Robles

引用次数: 2

Estimation of virtual interpupillary distances for immersive head-mounted displays 沉浸式头戴式显示器的虚拟瞳距估计

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836290

G. Bruder, Frank Steinicke, K. Hinrichs

{"title":"Estimation of virtual interpupillary distances for immersive head-mounted displays","authors":"G. Bruder, Frank Steinicke, K. Hinrichs","doi":"10.1145/1836248.1836290","DOIUrl":"https://doi.org/10.1145/1836248.1836290","url":null,"abstract":"Head-mounted displays (HMDs) allow users to observe virtual environments (VEs) from an egocentric perspective. In order to present a realistic stereoscopic view, the rendering system has to be adjusted to the characteristics of the HMD, e. g., the display's field of view (FOV), as well as to characteristics that are unique for each user, in particular her interpupillary distance (IPD). Typically, the user's IPD is measured, and then applied to the virtual IPD used for rendering, assuming that the HMD's display units are correctly adjusted in front of the user's eyes. A discrepancy between the user's IPD and the virtual IPD may distort the perception of the VE.\u0000 In this poster we analyze the user's perception of a VE in a HMD environment, which is displayed stereoscopically with different IPDs. We conducted an experiment to identify virtual IPDs that are identified as natural by subjects for different FOVs. In our experiment, subjects had to adjust the IPD for a rendered virtual replica of our real laboratory until perception of the virtual replica matched perception of the real laboratory. We found that the virtual IPDs subjects estimate as most natural are often not identical to their IPDs, and that the estimations were affected by the FOV of the HMD and the virtual FOV used for rendering.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"45 1","pages":"168"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78798304","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

Temporal thresholds for feature detection in flow visualization 流可视化中特征检测的时间阈值

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836285

Steve Haroz, D. Whitney

引用次数: 6

Display formats for the evaluation of automotive dashboards physical dimensions 用于评估汽车仪表板物理尺寸的显示格式

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836279

D. Mestre, D. Blumenthal, L. Boivin, Jean-Marie Pergandi

引用次数: 1

Horizon estimation: perceptual and computational experiments 视界估计:知觉与计算实验

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836257

Christian Herdtweck, C. Wallraven

{"title":"Horizon estimation: perceptual and computational experiments","authors":"Christian Herdtweck, C. Wallraven","doi":"10.1145/1836248.1836257","DOIUrl":"https://doi.org/10.1145/1836248.1836257","url":null,"abstract":"The human visual system is able to quickly and robustly infer a wealth of scene information -- the scene \"gist\" - already after 100 milliseconds of image presentation. Here, we investigated the ability to estimate the position of the horizon in briefly shown images. Being able to judge the horizon position quickly and accurately will help in inferring viewer orientation and scene structure in general and thus might be an important factor of scene gist. In the first, perceptual study, we investigated participants' horizon estimates after a 150 millisecond, masked presentation of typical outdoor scenes from different scene categories. All images were shown in upright, blurred, inverted, and cropped conditions to investigate the influence of different information types on the perceptual decision. We found that despite individual variations, horizon estimates were fairly consistent across participants and conformed well to annotated data. In addition, inversion resulted in significant differences in performance, whereas blurring did not yield any different results, highlighting the importance of global, low-frequency information for making judgments about horizon position. In the second, computational experiment, we then correlated the performance of several algorithms for horizon estimation with the human data -- algorithms ranged from simple estimations of bright-dark-transitions to more sophisticated frequency spectrum analyses motivated by previous computational modeling of scene classification results. Surprisingly, the best fits to human data were obtained with one very simple gradient method and the most complex, trained method. Overall, global frequency spectrum analysis provided the best fit to human estimates, which together with the perceptual data suggests that the human visual system might use similar mechanisms to quickly judge horizon position as part of the scene gist.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"27 1","pages":"49-56"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91246835","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: 7

A morphing-based analysis of the perceptual distance metric of human faces 基于形态学的人脸感知距离度量分析

Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization Pub Date : 2010-07-23 DOI: 10.1145/1836248.1836269

Nadine Gummersbach, V. Blanz

{"title":"A morphing-based analysis of the perceptual distance metric of human faces","authors":"Nadine Gummersbach, V. Blanz","doi":"10.1145/1836248.1836269","DOIUrl":"https://doi.org/10.1145/1836248.1836269","url":null,"abstract":"This paper presents a psychophysical analysis of the discrimination thresholds of human faces that are varied along different directions in Face Space. Generated by a 3D Morphable Model, the stimuli are frontal views of original laser scans that are modified in shape, texture or both. Discrimination thresholds are then measured in a four Alternative Forced Choice (4AFC) design and a staircase method.\u0000 In Experiment 1, texture and shape are varied separately along a set of principal component directions. For different components, the results show a consistent pattern of high and low thresholds across individual participants. We compare Mahalanobis distance, Euclidean distance in face space, and 2D image differences as potential predictors for human discrimination thresholds.\u0000 The goal of Experiment 2 is to investigate the interaction between shape and texture. The stimuli include combined and separate variations of shape and texture in the 4AFC staircase setup, which are analyzed in a within-subject paradigm. The results indicate that participants rely on both shape and texture for their decision. The experiments help to assess different potential models of the fusion of shape and texture cues, and provide useful information for computer graphics applications such as character design interfaces.","PeriodicalId":89458,"journal":{"name":"Proceedings APGV : ... Symposium on Applied Perception in Graphics and Visualization. Symposium on Applied Perception in Graphics and Visualization","volume":"4 1","pages":"109-116"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78292308","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: 2