Proceedings of the ACM Symposium on Applied Perception最新文献_第3页

User, metric, and computational evaluation of foveated rendering methods 注视点呈现方法的用户、度量和计算评估

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931011

Nicholas T. Swafford, Jose A. Iglesias-Guitian, Charalampos Koniaris, Bochang Moon, D. Cosker, Kenny Mitchell

引用次数: 69

Need a hand?: how appearance affects the virtual hand illusion 需要帮忙吗?:外观如何影响虚拟手的错觉

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931006

Lorraine Lin, S. Jörg

引用次数: 108

Learning movements from a virtual instructor 从虚拟教练那里学习动作

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948722

Jasper LaFortune, Kristen L. Macuga

{"title":"Learning movements from a virtual instructor","authors":"Jasper LaFortune, Kristen L. Macuga","doi":"10.1145/2931002.2948722","DOIUrl":"https://doi.org/10.1145/2931002.2948722","url":null,"abstract":"We examined the effects of perspective (first person versus third person) and immersion (immersive versus nonimmersive) on motor learning in order to assess the format of action representations. Participants viewed the instructor from either a first or a third person perspective. During immersive conditions, they wore a 6 DoF-tracked head-mounted display, as in Figure 1(a). For nonimmersive conditions, they viewed a computer monitor, as in Figure 1(b). We also evaluated whether these effects were modulated by experience. Experienced dancers and novices practiced dances by imitating a virtual instructor and then subsequently had to perform the dances from memory without an instructor present, following a delay. Accuracy for both practice and test trials was video coded. In line with theoretical models of motor learning, mean accuracy increased with successive trials in accordance with the power law of practice. First person perspective formats led to better accuracy, but immersive formats did not, as shown in Figure 2. Experienced dancers were more accurate than novices, but format did not interact with experience. These results suggest that during learning, individuals across experience levels represent complex actions in first person perspective, and that virtual instruction does not require immersion to be effective.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"81 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":"127696046","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: 1

Automatic scanpath generation with deep recurrent neural networks 基于深度递归神经网络的自动扫描路径生成

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948726

Daniel Simon, S. Sridharan, Shagan Sah, R. Ptucha, Christopher Kanan, Reynold J. Bailey

{"title":"Automatic scanpath generation with deep recurrent neural networks","authors":"Daniel Simon, S. Sridharan, Shagan Sah, R. Ptucha, Christopher Kanan, Reynold J. Bailey","doi":"10.1145/2931002.2948726","DOIUrl":"https://doi.org/10.1145/2931002.2948726","url":null,"abstract":"Many computer vision algorithms are biologically inspired and designed based on the human visual system. Convolutional neural networks (CNNs) are similarly inspired by the primary visual cortex in the human brain. However, the key difference between current visual models and the human visual system is how the visual information is gathered and processed. We make eye movements to collect information from the environment for navigation and task performance. We also make specific eye movements to important regions in the stimulus to perform the task-at-hand quickly and efficiently. Researchers have used expert scanpaths to train novices for improving the accuracy of visual search tasks. One of the limitations of such a system is that we need an expert to examine each visual stimuli beforehand to generate the scanpaths. In order to extend the idea of gaze guidance to a new unseen stimulus, there is a need for a computational model that can automatically generate expert-like scanpaths. We propose a model for automatic scanpath generation using a convolutional neural network (CNN) and long short-term memory (LSTM) modules. Our model uses LSTMs due to the temporal nature of eye movement data (scanpaths) where the system makes fixation predictions based on previous locations examined.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"177 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":"116638468","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: 6

Perceptual constancy of mechanical properties of cloth under variation of external forces 织物在外力作用下力学性能的感知恒常性

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2931016

Wenyan Bi, Bei Xiao

{"title":"Perceptual constancy of mechanical properties of cloth under variation of external forces","authors":"Wenyan Bi, Bei Xiao","doi":"10.1145/2931002.2931016","DOIUrl":"https://doi.org/10.1145/2931002.2931016","url":null,"abstract":"Deformable objects such as cloth exhibit their mechanical properties (e.g. stiffness) through shape deformation over time under external forces. Mechanical properties are important because they tell us the affordance of the object and helps us predict what type of action can be done upon it. Previous research shows that motion statistics can be used to develop computer vision algorithms to estimate mechanical properties of cloth under an unknown wind force. It is unclear what motion cues human use to estimate mechanical properties. Estimating mechanical properties is difficult because both the intrinsic properties of the fabric and the external force contribute to the apparent motion of the fabric. However, in order to achieve invariant material perception, the visual system needs to discount the effects of external force. In this paper, we investigate whether humans have an invariant representation of mechanical properties of fabrics under varying external forces in dynamic scenes. Then we study what visual cues allow humans to achieve this perceptual constancy. The stimuli are animated videos containing a hanging fabric moving under oscillating wind. We vary both intrinsic mechanical properties such as mass and stiffness of the cloth as well as the strength of the wind force. We discuss our results in the context of optical flow statistics. This advances the current understanding of the role of motion in perception of material properties in dynamic scenes.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"84 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":"131762143","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

FrankenFolk: distinctiveness and attractiveness of voice and motion FrankenFolk:声音和动作的独特性和吸引力

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2963132

Jan Ondřej, Cathy Ennis, N. Merriman, C. O'Sullivan

引用次数: 7

Saliency and optical flow for gaze guidance in videos 视频中注视引导的显著性和光流

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948725

S. Sridharan, Reynold J. Bailey

{"title":"Saliency and optical flow for gaze guidance in videos","authors":"S. Sridharan, Reynold J. Bailey","doi":"10.1145/2931002.2948725","DOIUrl":"https://doi.org/10.1145/2931002.2948725","url":null,"abstract":"Computer-based gaze guidance techniques have important applications in computer graphics, data visualization, image analysis, and training. Bailey et al. [2009] showed that it is possible to influence exactly where attention is allocated using a technique called Subtle Gaze Direction (SGD). The SGD approach combines eye tracking with brief image-space modulations in the peripheral regions of the field of view to guide viewer gaze about a scene. A fast eye-tracker is used to monitor gaze in real-time and the modulations are terminated before they can be scrutinized by the viewer's high acuity foveal vision. The SGD technique has been shown to improve spatial learning, visual search task performance, and problem solving in static digital imagery [Sridharan et al. 2012]. However, guiding attention in videos is challenging due to competing motion cues in the visual stimuli. We propose a novel method that uses scene saliency (spatial information) and optical flow (temporal information) to enable gaze guidance in dynamic scenes. The results of a user study show that the accuracy of responses to questions related to target regions in videos was higher among subjects who were gaze guided with our approach compared to a control group that was not actively guided.","PeriodicalId":102213,"journal":{"name":"Proceedings of the ACM Symposium on Applied Perception","volume":"18 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":"133660231","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

Exploring users' perceived activities in a sketch-based intelligent tutoring system through eye movement data 通过眼动数据探索用户在基于草图的智能辅导系统中的感知活动

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948727

Purnendu Kaul, Vijay Rajanna, T. Hammond

引用次数: 7

The perception of symmetry in the moving image: multi-level computational analysis of cinematographic scene structure and its visual reception 运动影像中对称的感知:电影场景结构及其视觉接收的多层次计算分析

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2948721

Jakob Suchan, M. Bhatt, Stella X. Yu

引用次数: 5

Binocular tone reproduction display for an HDR panorama image 用于HDR全景图像的双目色调再现显示器

Proceedings of the ACM Symposium on Applied Perception Pub Date : 2016-07-22 DOI: 10.1145/2931002.2947702

M. Mikamo, Kotaro Mori, B. Raytchev, Toru Tamaki, K. Kaneda

引用次数: 1