检索结果-内蒙古大学图书馆

IEEE Conference on Visualization

作者： W. De Leeuw R. Van Liere Center for Math. & Comput. Sci. CWI Amsterdam Netherlands

ISBN: (纸本)078035897X

Visualization of topological information of a vector field can provide useful information on the structure of the field. However, in turbulent flows standard critical point visualization will result in a cluttered image which is difficult to interpret. This paper presents a technique for collapsing topologies. The governing idea is to classify the importance of the critical points in the topology. By only displaying the more important critical points, a simplified depiction of the topology can be provided. Flow consistency is maintained when collapsing the topology, resulting in a visualization which is consistent with the original topology. We apply the collapsing topology technique to a turbulent flow field.

关键词： Topology Data visualization computer graphics Computational modeling Analytical models Skin Friction Engine cylinders Joining processes Filters

来源：评论

学校读者我要写书评

暂无评论

Kelembai walk: Encouraging cooperative interaction via design

Proceedings - GRAPHITE 2006: 4th International Conference on...

引用

proceedings - GRAPHITE 2006: 4th International Conference on computer graphics and interactive techniques in Australasia and Southeast Asia 2006年 183-185页

作者： Baharin, Ahmad Hanif Ahmad Nor, Romiza Md. Universiti Teknologi MARA Perils Malaysia

ISBN: (纸本)1595935649

In the olden days, many tools and technologies require the usage of human power. Therefore, the technologies will be more efficient if more people cooperate to use them. This is in contrast with today's technologies, many of which are designed to be operated by one person only. This paper presents the initial phase of a project that concerns the design and development of a technology which creates a necessity for people to cooperate. By using such a technology in a public space, it is hoped that a sense of community, as defined by the traditional Malay ways, can be revived. A technology probe called 'Kelembai Walk', which will be used in a participatory design process, is developed based on Presumptive Design. 'Kelembai Walk' is a multimedia application that uses pestles and mortars as interface devices. It will be displayed in an educational exhibition.

关键词： computer supported cooperative work

来源：评论

学校读者我要写书评

暂无评论

BASIC Zgrass—a sophisticated graphics language for the Bally Home Library computer 78

BASIC Zgrass—a sophisticated graphics language for the Ball...

引用

proceedings of the 5th annual conference on computer graphics and interactive techniques

作者： Tom DeFanti Jay Fenton Nola Donato University of Illinois at Chicago Circle Dave Nutting Associates

ISBN: (纸本)9781450379083

Home computer users are just now discovering computer graphics. Modest extensions to BASIC allow plotting but not much more. The Bally Home Library computer, however, has hardware to aid implementation of video games. Custom integrated circuits working on a 160×102 pixel (2 bits per pixel) color television screen allow certain forms of animation in real time. To give this power to the user, BASIC Zgrass has been designed and implemented. It is an extension of BASIC that allows parallel processes, picture objects that move, scale and group together as well as several drawing modes. There are also software controls of a three-voice music synthesizer, interactive input devices, a film camera and an IEEE bus interface. We will concentrate mainly on the language design for making it all easy to learn and use.

关键词： Real-time Graphic language Intepreters Art interactive computer graphics

来源：评论

学校读者我要写书评

暂无评论

Warping of a spherical representation of image-based models on GPU

Warping of a spherical representation of image-based models ...

引用

VRCAI 2009: 8th International Conference on Virtual Reality Continuum and its Applications in Industry

作者： Zhu, Jian Liu, Youquan Bao, Kai Chang, Yuanzhang Wu, Enhua Department of Computer and Information Science University of Macau China School of Information Engineering Chang'an University Xi'an China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781605589121

Image warping techniques are frequently used to render 3D scenes from images with depth information for VR applications. In this paper, we first propose a spherical representation of image-based models call the Spherical Depth Image (SDI). With two Warping Equations, at runtime we then pre-warp the image onto a view-dependent plane to get an intermediate image, which is further rendered onto the target image plane using standard texture mapping. Compared with other representations, SDI is sampled uniformly and completely, therefore it can reduce much unnecessary rendering overhead and the resultant rendered image is hole-free. To speed up the computation and utilize hardware's rasterization function for image interpolation, we transport the pre-warping process into GPU's Vertex Shader. Besides, high quality rendering effect in Pixel Shader can also be achieved as traditional geometry based methods. Finally, we overcome the approach's limitation of viewing region, and design a real-time walkthrough system with LOD representations of the SDIs. Copyright © 2009 by the Association for Computing Machinery, Inc.

关键词： graphics processing unit

来源：评论

学校读者我要写书评

暂无评论

Three dimensional visualization of proteins in cellular interactions 96

Three dimensional visualization of proteins in cellular inte...

引用

IEEE Conference on Visualization

作者： C.R.F. Monks P.J. Crossno G. Davidson C. Pavlakos A. Kupfer C. Silva B. Wylie Dept. of Pediatrics Nat. Jewish Center for Immunology & Respiratory Med. USA

ISBN: (纸本)9780897918640

In researching the communication mechanisms between cells of the immune system, visualization of proteins in three dimensions can be used to determine which proteins are capable of interacting with one another at a given time by showing their spatial colocality. Volume data sets are created using digital confocal immunofluorescence microscopy. A variety of visualization approaches are then used to examine the interactions. These include volume rendering, isosurface extraction, and virtual reality. Based on our experiences, we have concluded that no single one of these approaches provides a complete solution for visualizing biological data. However, in combination, their respective strengths complement one another to provide an understanding of the data.

关键词： Proteins Data visualization Animation Rendering (computer graphics) Laboratories Transfer functions Glands Deconvolution Collaboration Isosurfaces

来源：评论

学校读者我要写书评

暂无评论

Exploring Fungal Morphology Simulation and Dynamic Light Containment from a graphics Generation Perspective 24

Exploring Fungal Morphology Simulation and Dynamic Light Con...

引用

2024 SIGGRAPH Asia 2024 Art Papers, SA 2024

作者： Wang, Kexin He, Ivy Li, Jinke Asadipour, Ali Sun, Yitong Brown University School of Engineering Providence United States Rhode Island School of Design Providence United States Brown University Department of Computer Science Providence United States Brown University Department of Molecular Microbiology and Immunology Providence United States Royal College of Art Computer Science Research Centre London United Kingdom

ISBN: (纸本)9798400711336

Fungal simulation and control are considered crucial techniques in Bio-Art creation. However, coding algorithms for reliable fungal simulations have posed significant challenges for artists. This study equates fungal morphology simulation to a two-dimensional graphic time-series generation problem. We propose a zero-coding, neural network-driven cellular automaton. Fungal spread patterns are learned through an image segmentation model and a time-series prediction model, which then supervise the training of neural network cells, enabling them to replicate real-world spreading behaviors. We further implemented dynamic containment of fungal boundaries with lasers. Synchronized with the automaton, the fungus successfully spreads into pre-designed complex shapes in reality. © 2024 Copyright held by the owner/author(s).

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

The development of a dynamic interactive computer graphics research and educational support environment 75

The development of a dynamic interactive computer graphics r...

引用

proceedings of the 2nd annual conference on computer graphics and interactive techniques

作者： Frederick R. Stocker Gerald G. Johnson Herbert A. McKinstry The Pennsylvania State University

ISBN: (纸本)9781450373548

The Pennsylvania State University Computation Center is currently performing research and development in providing an effective research and training support environment which enables a user, whether researcher or student, to become familiar with an available base of graphics hardware and software support and to proceed to original programming with confidence and *** main consideration is to provide an interactive programming environment in which users can become self-sufficient in coping with both hardware operation and potential as well as effective utilization of software in a reasonably short period of time. Such users should not have to be computer graphics specialists to apply a graphics system to their fields of expertise. Users should be thoroughly trained to understand and handle an available hardware/software system in order to be better able to evaluate the potential system usage directly and *** paper, together with a film, describes an approach developed at the Computation Center and tested and implemented in three offerings of a computer Science advanced undergraduate course.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An efficient algorithm for the Euclidean two-center problem 94

An efficient algorithm for the Euclidean two-center problem

引用

proceedings of the tenth annual symposium on Computational geometry

作者： Jerzy W. Jaromczyk Mirosław Kowaluk Department of Computer Science University of Kentucky Lexington KY Institute of Informatics Warsaw University Warsaw Poland

ISBN: (纸本)9780897916486

We present a new algorithm for the two-center problem: “Given a set S of n points in the real plane, find two closed discs whose union contains all of the points and the radius of the larger disc is minimized.” An almost quadratic O(n2logn) solution is given. The previously best known algorithms for the two-center problem have time complexity O(n2log3n). The solution is based on a new geometric characterization of the optimal discs and on a searching scheme with so-called lazy evaluation. The algorithm is simple and does not assume general position of the input points. The importance of the problem is known in various practical applications including transportation, station placement, and facility location.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Visual Analysis of Confocal Raman Spectroscopy Data using Cascaded Transfer Function Design

引用

computer graphics FORUM 2017年第3期36卷 239-249页

作者： Schikora, Christoph M. Plack, Markus Bornemann, Rainer Bolivar, Peter Haring Kolb, Andreas Univ Siegen Comp Graph & Multimedia Syst Siegen Germany Univ Siegen High Frequency & Quantum Elect Siegen Germany

2D Confocal Raman Microscopy (CRM) data consist of high dimensional per-pixel spectral data of 1000 bands and allows for complex spectral and spatial-spectral analysis tasks, i.e., in material discrimination, material thickness, and spatial material distributions. Currently, simple integral methods are commonly applied as visual analysis solutions to CRM data which exhibit restricted discrimination power in various regards. In this paper we present a novel approach for the visual analysis of 2D multispectral CRM data using multi-variate visualization techniques. Due to the large amount of data and the demand of an explorative approach without a-priori restriction, our system allows for arbitrary interactive (de)selection of varaibles w/o limitation and an unrestricted online definition/construction of new, combined properties. Our approach integrates CRM specific quantitative measures and handles material-related features for mixed materials in a quantitative manner. Technically, we realize the online definition/construction of new, combined properties as semi-automatic, cascaded, 1D and 2D multidimensional transfer functions (MD-TFs). By interactively incorporating new (raw or derived) properties, the dimensionality of the MD-TF space grows during the exploration procedure and is virtually unlimited. The final visualization is achieved by an enhanced color mixing step which improves saturation and contrast.

关键词： Categories and Subject Descriptors (according to acm CCS) I.3.3 [computer graphics]: Display algorithm I.4.10 [Image Processing and computer Vision]: Multidimensional I.5.3 [Pattern Recognition]: Algorithms

来源：评论

学校读者我要写书评

暂无评论

Shared Interest: Measuring Human-AI Alignment to Identify Recurring Patterns in Model Behavior 22

Shared Interest: Measuring Human-AI Alignment to Identify Re...

引用

CHI Conference on Human Factors in Computing Systems (CHI)

作者： Boggust, Angie Hoover, Benjamin Satyanarayan, Arvind Strobelt, Hendrik MIT CSAIL Cambridge MA 02139 USA IBM Res Cambridge MA USA

ISBN: (纸本)9781450391573

Saliency methods-techniques to identify the importance of input features on a model's output-are a common step in understanding neural network behavior. However, interpreting saliency requires tedious manual inspection to identify and aggregate patterns in model behavior, resulting in ad hoc or cherry-picked analysis. To address these concerns, we present Shared Interest: metrics for comparing model reasoning (via saliency) to human reasoning (via ground truth annotations). By providing quantitative descriptors, Shared Interest enables ranking, sorting, and aggregating inputs, thereby facilitating large-scale systematic analysis of model behavior. We use Shared Interest to identify eight recurring patterns in model behavior, such as cases where contextual features or a subset of ground truth features are most important to the model. Working with representative real-world users, we show how Shared Interest can be used to decide if a model is trustworthy, uncover issues missed in manual analyses, and enable interactive probing.

关键词： human-computer interaction interpretability machine learning saliency methods

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：