Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1最新文献_第3页

Glance: generalized geometric primitives and transformations for information visualization in AR/VR environments 概览:AR/VR环境中信息可视化的广义几何原语和转换

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3014006

Daniel Filonik, T. Bednarz, Markus Rittenbruch, M. Foth

{"title":"Glance: generalized geometric primitives and transformations for information visualization in AR/VR environments","authors":"Daniel Filonik, T. Bednarz, Markus Rittenbruch, M. Foth","doi":"10.1145/3013971.3014006","DOIUrl":"https://doi.org/10.1145/3013971.3014006","url":null,"abstract":"This paper outlines Glance, a unifying framework for exploring multidimensional, multivariate data in the context of AR/VR environments, along with specific implementation techniques that utilize programmable GPUs. The presented techniques extend the graphics pipeline through programmable shaders in order to support more general geometries and operations. Our point of departure from existing structural theories of graphics is a general spatial substrate, where data is encoded using higher-dimensional geometric primitives. From there, we define a series of processing stages, utilizing shaders to enable flexible and dynamic coordinate transformations. Furthermore, we describe how advanced visualization techniques, such as faceting and multiple views, can be integrated elegantly into our model. Bridging between Computer Graphics and Information Visualization theories, the elements of our framework are composable and expressive, allowing a diverse set of visualizations to be specified in a universal manner (see figure 1).","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121354928","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: 8

Making decision for the next step in dense crowd simulation using support vector machines 基于支持向量机的密集人群模拟下一步决策

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013990

Shamsul Mohamad, Masaki Oshita, T. Noma, M. S. Sunar, F. M. Nasir, Kunio Yamamoto, Yasutaka Honda

{"title":"Making decision for the next step in dense crowd simulation using support vector machines","authors":"Shamsul Mohamad, Masaki Oshita, T. Noma, M. S. Sunar, F. M. Nasir, Kunio Yamamoto, Yasutaka Honda","doi":"10.1145/3013971.3013990","DOIUrl":"https://doi.org/10.1145/3013971.3013990","url":null,"abstract":"This paper presents a method to optimize the travel time of an intelligent agent finding its way through a simulated dense crowd by using Support Vector Machines (SVMs). While prior studies have used Social Force Model (SFM) for crowd simulation, a limitation of the model is that it does not allow the agent to make decision in getting to a specific point in a dense crowd in the shortest time possible. The next step refers to the temporary position before a final destination is reached and identifying a suitable next step in a dense crowd is challenging as there are many other moving agents that might block the path. Hence, to avoid formulating the decision of the agent's next step to proceed to a target point in an explicit manner, we therefore resort to SVMs whereby the position and velocity of the nearby agents are used as the feature vectors and the next step position as the class label. The training data is trained a priori with feature vectors and class labels supplied by human subjects. In order to produce a higher accuracy of training model, the training data is duplicated by permutation process. During the simulation, we used SFM and multiple SVM training models to control the motion of the intelligent agent. The results of the simulation indicated that the combination of SFM+SVMs enabled the intelligent agent to reach the final destination faster than using SFM on its own.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130989243","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: 9

Automated brain extraction and associated 3D inspection layers for the Rhesus macaque MRI datasets 恒河猴MRI数据集的自动脑提取和相关3D检查层

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013984

Zeqing Fu, Yiyi Deng, Xin Jia, Bin Gao, Xiaoming Zhu, Yanlin Luo

{"title":"Automated brain extraction and associated 3D inspection layers for the Rhesus macaque MRI datasets","authors":"Zeqing Fu, Yiyi Deng, Xin Jia, Bin Gao, Xiaoming Zhu, Yanlin Luo","doi":"10.1145/3013971.3013984","DOIUrl":"https://doi.org/10.1145/3013971.3013984","url":null,"abstract":"As we know, the rhesus macaque as a non-human primate is quite similar to human being in genetics. And it has become an essential animal model anatomy and physiology in many modern medicine research such as the cardiovascular and cerebrovascular diseases in recent years. This paper describes a pipeline from the raw rhesus macaque brain MRI data to intuitive 3D inspection its layers. Brain extraction is an initial step for subsequent analyses, but most of the existing methods so far are designed for human brain, which doesn't work well with the rhesus macaque. Firstly, we propose a reliable and efficient method to extract the brain from MRI datasets based on dividing the brain into blocks. Then, we design a trapezoid opacity transfer function based on CUDA-based real-time volume ray-casting, which is dedicated for the volume rendering to make the inspection more intuitive. Besides, the inspection of different tissues benefits understanding the volumetric datasets, so we also design layer filter for the segmented rhesus macaque brain datasets, which facilitates inspection of interior in ROI by an intuitive bimanual interaction via a Leap Motion sensor. Our experiments prove the usability and efficiency of the proposed methods.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123733875","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

Interactive modeling and editing of free-form surfaces from curve networks 交互式建模和编辑自由曲面从曲线网络

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013991

Leilei Gao, Congyi Zhang, Lifeng Zhu, Sheng Li, Guoping Wang

引用次数: 2

An automatic positioning algorithm for archaeological fragments 考古碎片的自动定位算法

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013992

Guoguang Du, Mingquan Zhou, Congli Yin, Juan Zhang, Zhongke Wu, Wuyang Shui

{"title":"An automatic positioning algorithm for archaeological fragments","authors":"Guoguang Du, Mingquan Zhou, Congli Yin, Juan Zhang, Zhongke Wu, Wuyang Shui","doi":"10.1145/3013971.3013992","DOIUrl":"https://doi.org/10.1145/3013971.3013992","url":null,"abstract":"One of the main challenges on digital preservation of cultural heritage is to reassemble broken fragments. However, large amounts of fragments are mixed randomly when discovered, which brings terrific difficulties for their reassembly. This paper introduces an automatic approach for positioning large mixed archaeological fragments which come from a particular kind of artifact. The main idea is to position fragments based on partial matching between fragments and a complete artifact model using the multi-scale, informative and robust Heat Kernel Signature. The positioning pipeline contains four steps: feature points extraction for fragments and the complete artifact model based on Heat Kernel Signature; initial matching between feature points by comparing their Heat Kernel Signature curves; wrong matches removing using a basis points driven refinement procedure and rigid transformation generating by selecting three pairs of points among the correct matching results using farthest points sampling. After these steps, archaeological fragments can be positioned to different positions compared with the template model, which provides not only the classification information, but also the accurate relative position. The main contributions of this paper are using a novel feature extraction algorithm based on Heat Kernel Signature to assist partial matching, and a basis points driven refinement procedure to remove wrong matches. The proposed algorithm has been tested on the Terracotta Warriors fragments, and the results prove the effectiveness of the proposed positioning algorithm.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115324047","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: 4

Gap connection of vascular branches by nonlinear least squares curve fitting algorithm 非线性最小二乘曲线拟合维管分支的间隙连接

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3015778

Shi-feng Zhao, X. Wang, Yun Tian, Qingqiong Deng, Zhongke Wu, Mingquan Zhou

引用次数: 1

Real-time full-body motion reconstruction and recognition for off-the-shelf VR devices 现货VR设备的实时全身运动重建和识别

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013987

Fan Jiang, Xubo Yang, Lele Feng

{"title":"Real-time full-body motion reconstruction and recognition for off-the-shelf VR devices","authors":"Fan Jiang, Xubo Yang, Lele Feng","doi":"10.1145/3013971.3013987","DOIUrl":"https://doi.org/10.1145/3013971.3013987","url":null,"abstract":"Almost all VR multi-person applications have the requirement of reconstructing the whole-body motions in real-time in order to create deeper immersion. In fact, if we can ensure that the motion we reconstruct is natural, we can improve upon the comfort and number of wearing sensors at the cost of reconstruction precision because all users in VR are blindfolded. In this paper, we introduce a novel real-time motion reconstruction and recognition method in VR only using the positions and orientations of user's head and two hands. To reconstruct natural motions according to rare sensors, we divide the whole body into the upper body and the lower body. The upper body reconstruction algorithm based on inverse kinematics which is more accurate and the lower body based on animation blending which only needs a small number of prepared animations. Meanwhile, a natural action recognition algorithm based on neural network will run in need to detect the target motions we have trained. We show that our method can reconstruct various full-body motions, such as walking in any direction, jogging, jumping, crouching and turning. Our method has the ability to reconstruct natural human motions which can be used in almost all VR multi-person interactive applications. The configuration of sensors we attached on the head and hands is very popular in VR well-known devices, so the method can be easily integrated into off-the-shelf VR devices.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127808262","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: 34

Visualizing brightness temperature data of king crater area with CELMS 利用CELMS可视化king陨石坑区域的亮度温度数据

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013993

Ting Lan, Z. Cai, Jing Huang

引用次数: 0

Passive haptics based MR system for geography teaching 基于被动触觉的MR地理教学系统

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3013995

Zhizhuo Yang, Dongdong Weng

{"title":"Passive haptics based MR system for geography teaching","authors":"Zhizhuo Yang, Dongdong Weng","doi":"10.1145/3013971.3013995","DOIUrl":"https://doi.org/10.1145/3013971.3013995","url":null,"abstract":"Passive haptics in an alternative way to provide the user with realistic haptic feedback with a low cost comparing to device-based active haptics. This paper presents a mixed reality system with passive haptics integration that supports bare-hand interaction for users to see and touch virtual objects in immersive virtual environment (IVE). With the educational potential, the purposed system is applied to geography teaching. The prototype combines feature-based visual tracking for user's head and objects in the real environment with free-hand motion detection via a depth camera, thus user can see both their hands and objects in the virtual environment. A study of virtual teaching of geography of Germany was conducted, 18 subjects participated in the formal experiments which include three different learning environments. The results showed that the participants learning in the virtual environment with passive haptics consume more time than the virtual environment with free-hand gesture in finishing geography teaching tasks which is contrary to the expected result. The reasons are discussed in detail. Furthermore, quality of memorizing geographical knowledge in the group with passive haptic feedback exceeds that in the group without.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131165359","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

Virtual reality technology based developmental designs of multiplayer-interaction-supporting exhibits of science museums: taking the exhibit of "virtual experience on an aircraft carrier" in China science and technology museum as an example 基于虚拟现实技术的科技馆多人互动配套展品开发设计——以中国科技馆“航母上的虚拟体验”展览为例

Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1 Pub Date : 2016-12-03 DOI: 10.1145/3013971.3014018

Lu Li, Jian Zhou

{"title":"Virtual reality technology based developmental designs of multiplayer-interaction-supporting exhibits of science museums: taking the exhibit of \"virtual experience on an aircraft carrier\" in China science and technology museum as an example","authors":"Lu Li, Jian Zhou","doi":"10.1145/3013971.3014018","DOIUrl":"https://doi.org/10.1145/3013971.3014018","url":null,"abstract":"In the science museum industry, exhibits related to virtual reality(VR) technology have grown rapidly in number. Demonstrating and using virtual reality technology in exhibits is becoming a new hotspot in science museums. However, most of these exhibits are non-interactive or only allow one person to interact with virtual environment. Few exhibits could realize multiplayer real-time interaction. Taking the exhibit of \"Virtual Experience on an Aircraft Carrier\" in China Science and Technology Museum as an example, this paper elaborates the design of a multiplayer interactive exhibit based on VR technology, including the game content and interactive ways of the exhibit, the software system architecture, the function of software system modules, software development tools, the hardware system and the equipment required. Through this, the paper is aimed to provide useful ideas for such multiplayer interactive exhibits based on virtual reality technology, which may make exhibitions in science museums more interesting and improve their science popularization effects.","PeriodicalId":269563,"journal":{"name":"Proceedings of the 15th ACM SIGGRAPH Conference on Virtual-Reality Continuum and Its Applications in Industry - Volume 1","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132661391","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: 13