Pub Date : 2014-11-01DOI: 10.1109/3DVis.2014.7160105
Koosha Mirhosseini, Qi Sun, K. Gurijala, B. Laha, A. Kaufman
Virtual Colonoscopy (VC) is a non-invasive clinical procedure that detects colon cancer in humans. VC seeks to supplement and improve the compliance rates for diagnosed patients, since the traditional optical colonoscopy is more painful, and less effective for cancer detection. In this paper, we discuss the benefits of using a 3D immersive user interface for VC. We discuss various design choices that we can make for such a design, leveraging the effects of the various combinations of virtual reality (VR) system components, as in previous VR empirical studies.
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Pub Date : 2014-11-01DOI: 10.1109/3DVis.2014.7160098
B. Wang, K. Mueller
Our paper takes the stance that a 3D shaded display can add a significant amount of information to the visualization of high-dimensional data. We believe that it makes better use of the innate cognitive capabilities of the human visual system which is highly optimized to recognize and reason with 3D shape information. As a first step we studied a variety of real-world datasets and confirmed that the extension from the traditional 2D space to 3D space is indeed justified - most datasets we studied had clusters residing in subspaces with more than two significant principal components. We then describe an interactive interface that allows users to navigate these 3D subspaces, expand the exploration to higher dimensionalities, and also transition among the distinct subspaces inhabited by different clusters in the data.
{"title":"Does 3D really make sense for visual cluster analysis? yes!","authors":"B. Wang, K. Mueller","doi":"10.1109/3DVis.2014.7160098","DOIUrl":"https://doi.org/10.1109/3DVis.2014.7160098","url":null,"abstract":"Our paper takes the stance that a 3D shaded display can add a significant amount of information to the visualization of high-dimensional data. We believe that it makes better use of the innate cognitive capabilities of the human visual system which is highly optimized to recognize and reason with 3D shape information. As a first step we studied a variety of real-world datasets and confirmed that the extension from the traditional 2D space to 3D space is indeed justified - most datasets we studied had clusters residing in subspaces with more than two significant principal components. We then describe an interactive interface that allows users to navigate these 3D subspaces, expand the exploration to higher dimensionalities, and also transition among the distinct subspaces inhabited by different clusters in the data.","PeriodicalId":246346,"journal":{"name":"2014 IEEE VIS International Workshop on 3DVis (3DVis)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130817212","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}
Pub Date : 2014-11-01DOI: 10.1109/3DVis.2014.7160095
Nicolas Greffard, Fabien Picarougne, P. Kuntz
Popular in the nineties, 3D visualization has since garnered much criticisms. While historically the vast majority of 3D visualization evaluations have been based on the classical Brunelleschi's perspective rendering, today new questions are raised with the recent access to high quality stereoscopic representations. Do these new interfaces offer improvements over the traditional 3D counterparts? This paper describes a comparative evaluation of monoscopic 3D and stereoscopic 3D for an important problem in graph visualization: the detection of communities. Our results show that stereoscopic 3D outperforms both 2D and monoscopic 3D in the task resolution. The 2D condition always yields the lower response times. Mono-scopic and stereoscopic 3D obtain similar response times. A complementary study based on an original methodology reveals that these apparent similarities actually correspond to different interaction strategies - rotations around the graph. Under the monoscopic condition, participants tend to explore the display space more thoroughly while under the stereoscopic condition, they seem to favor the adoption of a smaller set of viewpoints on the graph.
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Pub Date : 2014-11-01DOI: 10.1109/3DVis.2014.7160106
Minju Kim, Jungjin Lee, K. Wohn
While the 3D graphics technique has found its place for the scientific visualization, especially for medical and biological applications, it has long been speculated that the 3D may not be so much effective as far as the conventional information visualization is concerned. We agree upon this view that the naive extension of the 2D visual forms to 3D is not a way to go. Instead, the computergenerated 3D virtual world will serve best when the virtual world is seamlessly integrated with the real 3D space. For an example, a physical automobile model surrounded with various kinds of virtual visual forms such as texts, images, sounds and 3D models will offer the user (or the audience) another level of appreciation and experience on the subject being presented. In this paper, we present our on-going developmental efforts toward the above framework which calls for the tight integration of the 3D visual forms and the 3D real space. The Spatial AR Hologram (SPAROGRAM) is capable of manifesting augmented three-dimensional information by making full use of the real 3D space that encompasses the surroundings of the real object comprehensively and simultaneously. To accomplish this, a multiple layer of stereoscopic images was implemented. Stereoscopic images enable spatial visualization using the physical and virtual third dimension. Furthermore, ensuring the continuity of the spatial experience, we made the use of spatial exploration with user interaction in real-time. We describe the whole process of system design and prototyping. Our initial investigation suggests that the newly conceived holographic display produce not only continuous 3D space perception, but also the better spatial awareness and realism. Furthermore, it is a promising way to present information in three-dimensional display and help the users understand information effectively and efficiently.
虽然三维图形技术已经在科学可视化，特别是医学和生物应用中找到了自己的位置，但长期以来人们一直猜测，就传统的信息可视化而言，三维图形技术可能并不那么有效。我们同意这种观点，即单纯地将2D视觉形式扩展到3D不是一种可行的方法。相反，当虚拟世界与真实的3D空间无缝集成时，计算机生成的3D虚拟世界将发挥最大的作用。例如，一个物理汽车模型被各种虚拟视觉形式(如文本、图像、声音和3D模型)所包围，将为用户(或观众)提供另一种对所呈现主题的欣赏和体验。在本文中，我们向上述框架提出了我们正在进行的发展努力，这需要三维视觉形式和三维真实空间的紧密结合。空间增强现实全息图(SPAROGRAM, Spatial AR Hologram)是通过充分利用真实的三维空间，全面、同步地包罗真实物体的周围环境，来表现增强的三维信息。为此，实现了多层立体图像。立体图像可以使用物理和虚拟的第三维度实现空间可视化。此外，为了保证空间体验的连续性，我们将空间探索与用户实时交互。我们描述了系统设计和原型设计的整个过程。我们的初步研究表明，新构思的全息显示器不仅产生连续的三维空间感知，而且具有更好的空间意识和真实感。此外，它是一种很有前途的信息三维显示方式，可以帮助用户有效地理解信息。
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