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Web-based interactive visualization of 3D video mosaics using X3D standard 被引量:2
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作者 CHON Jaechoon LEE Yang-Won SHIBASAKI Ryosuke 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第7期1259-1265,共7页
We present a method of 3D image mosaicing for real 3D representation of roadside buildings, and implement a Web-based interactive visualization environment for the 3D video mosaics created by 3D image mosaicing. The 3... We present a method of 3D image mosaicing for real 3D representation of roadside buildings, and implement a Web-based interactive visualization environment for the 3D video mosaics created by 3D image mosaicing. The 3D image mo- saicing technique developed in our previous work is a very powerful method for creating textured 3D-GIS data without excessive data processing like the laser or stereo system. For the Web-based open access to the 3D video mosaics, we build an interactive visualization environment using X3D, the emerging standard of Web 3D. We conduct the data preprocessing for 3D video mosaics and the X3D modeling for textured 3D data. The data preprocessing includes the conversion of each frame of 3D video mosaics into concatenated image files that can be hyperlinked on the Web. The X3D modeling handles the representation of concatenated images using necessary X3D nodes. By employing X3D as the data format for 3D image mosaics, the real 3D representation of roadside buildings is extended to the Web and mobile service systems. 展开更多
关键词 3d video mosaics interactive 3d visualization Web 3d
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3D graphical visualization of the genetic architectures underlying complex traits in multiple environments 被引量:1
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作者 HU Cheng-cheng YE Xiu-zi +3 位作者 ZHANG Yin YU Rong-dong YANG Jian ZHU Jun 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第4期563-567,共5页
An approach for generating interactive 3D graphical visualization of the genetic architectures of complex traits in multiple environments is described. 3D graphical visualization is utilized for making improvements on... An approach for generating interactive 3D graphical visualization of the genetic architectures of complex traits in multiple environments is described. 3D graphical visualization is utilized for making improvements on traditional plots in quan- titative trait locus (QTL) mapping analysis. Interactive 3D graphical visualization for abstract expression of QTL, epistasis and their environmental interactions for experimental populations was developed in framework of user-friendly software QTLNetwork (http://ibi.zju.edu.cn/software/qtlnetwork). Novel definition of graphical meta system and computation of virtual coordinates are used to achieve explicit but meaningful visualization. Interactive 3D graphical visualization for QTL analysis provides geneticists and breeders a powerful and easy-to-use tool to analyze and publish their research results. 展开更多
关键词 Ouantitative trait locus (QTL) visualization 3d graphical interactive visualization
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Chronological Restoration of Fort Frontenac in 3D for Heritage Visualization
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作者 Mitsuyoshi Yabe Elizabeth Goins +3 位作者 Chris Jackson David Halbstein Shaun Foster Sue Bazely 《Journal of Civil Engineering and Architecture》 2015年第12期1463-1473,共11页
This paper is composed of three elements: 3D modeling, web design and heritage visualization on the basis of the chronological restoration of Fort Frontenac in 1673, 1675, 1680, 1685 and 1688, changing from narrow an... This paper is composed of three elements: 3D modeling, web design and heritage visualization on the basis of the chronological restoration of Fort Frontenac in 1673, 1675, 1680, 1685 and 1688, changing from narrow and plain to broad, grand features. The aim is to use computer graphic design to inform and create an interest in historical visualization by rebuilding Fort Frontenac using 3D modeling and interactive design. The final model can be integrated into an interactive website to learn more about the fort's historic importance. It is apparent that using computer graphics can save time and money when it comes to historical visualization. Visitors do not have to travel to the actual archaeological buildings and can simply use the web in their own homes to learn about this information virtually. In order to create a sophisticated restoration of archaeological buildings, meticulously assessing historical records will draw viewers into the visualizations, such as the historical world of Fort Frontenac. As a result, the completed restoration allows the viewers to effectively understand the fort's social system, habits and historical events. 展开更多
关键词 Heritage visualization 3d computer graphics interactive virtual design web design effective usage of learning.
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基于VTK的医学图像交互式三维测量技术研究 被引量:16
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作者 袁杲 叶峰 +1 位作者 杨玲 谢明元 《计算机工程与设计》 CSCD 北大核心 2008年第13期3549-3550,F0003,共3页
VTK是国外开发的集计算机图形、图像处理和可视化于一体的工具开发包,具有高度的灵活性、可移植性。提出一种使用VTK类库实现三维拾取的方法,能够将用户指定的屏幕坐标转化为三维物体坐标系下的空间坐标。最后通过牙齿模型的三维测量实... VTK是国外开发的集计算机图形、图像处理和可视化于一体的工具开发包,具有高度的灵活性、可移植性。提出一种使用VTK类库实现三维拾取的方法,能够将用户指定的屏幕坐标转化为三维物体坐标系下的空间坐标。最后通过牙齿模型的三维测量实验,证明这种方法具有良好的交互性和实时性。 展开更多
关键词 可视化工具包 三维测量 三维拾取 三维标注 交互式测量
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基于3DGIS技术的电网3维可视化系统技术架构设计 被引量:1
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作者 周明磊 庄玉林 《测绘与空间地理信息》 2013年第12期92-95,共4页
从信息技术应用的角度,通过整合3维GIS,虚拟现实技术和信息集成等信息技术,为电网实现3维可视化提出一个技术机构,它可以从多分辨率、多尺度、多时空等多种角度实现电网的3维可视化。论文阐述了该系统的技术架构以及实现的关键技术,如... 从信息技术应用的角度,通过整合3维GIS,虚拟现实技术和信息集成等信息技术,为电网实现3维可视化提出一个技术机构,它可以从多分辨率、多尺度、多时空等多种角度实现电网的3维可视化。论文阐述了该系统的技术架构以及实现的关键技术,如合成建模、可视化仿真、信息集成、可视化,为电网规划设计、工程建设、运行维护3维可视化提出一种建设思路,相信对从事相关工作的同行能有所裨益。 展开更多
关键词 3dGIS 3维可视化 虚拟互动 信息集成技术
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Methodology of High Accuracy and Resolution 3D Geological Model Generation and Application
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作者 吴键 曹代勇 +3 位作者 邓爱居 李东津 蒋涛 翟光华 《Journal of China University of Mining and Technology》 2004年第1期47-50,共4页
By generating a high accuracy and high resolution geological model in Liuchu oil field, the technique of geological modeling is expanded and involved in primary geological study, making the sand bodies and reservoir b... By generating a high accuracy and high resolution geological model in Liuchu oil field, the technique of geological modeling is expanded and involved in primary geological study, making the sand bodies and reservoir be easily described in detail. The 3D visualization and 3D interactive editing of geological structure model are the key for modeling procedure. And a high accuracy and resolution geological model has been well applied in optimizing the production scheme. 展开更多
关键词 high accuracy and resolution 3d visualization interactive editing production scheme
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Visualization of Three-dimensional Human Data Based on CT Image
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作者 HU Zhan-li ZHANG Na +3 位作者 ZOU Jing RONG Jun-yan GUI Jian-bao ZHENG Hai-rong 《Chinese Journal of Biomedical Engineering(English Edition)》 2011年第4期150-162,174,共14页
Three-dimensional medical image visualization becomes an essential part for medical field, including computer aided diagnosis, surgery planning and simulation, artificial limb surgery, radiotherapy planning, and teach... Three-dimensional medical image visualization becomes an essential part for medical field, including computer aided diagnosis, surgery planning and simulation, artificial limb surgery, radiotherapy planning, and teaching etc. In this paper, marching cubes algorithm is adopted to reconstruct the 3-D images for the CT image sequence in DICOM format under theVC++6.0 and the visual package VTK platform. The relatively simple interactive operations such as rotation and transfer can be realized on the platform. Moreover, the normal vector and interior point are calculated to form the virtual clipping plane, which is then used to incise the 3-D object. Information of the virtual slice can be obtained, in the mean while the virtual slice images are displayed on the screen. The technique can realize the real time interaction extraction of virtual slice on 3-D CT image. The cuboids structured can be zoomed, moved and eircumrotated by operating mouse to incise the 3-D reconstruction object. Real time interaction can be realized by clipping the reconstruction object. The coordinates can be acquired by the mouse clicking in the 3D space, to realize the point mouse pick-up as well angle and distance interactive measurement. We can get quantitative information about 3-D images through measurement. 展开更多
关键词 3d visualization interactive virtual slice cuboids clipping mouse pick-up quantitative measurement medical imaging computed tomography(CT)
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三维交互式切割技术在医学图像处理中的应用 被引量:3
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作者 孙少平 杨开泰 +2 位作者 李斌 李元俊 梁静 《中国医疗器械杂志》 CAS 2013年第5期313-315,共3页
该文研究基于VTK(Visualization Toolkit)进行CT和MRI医学图像序列的三维可视化及任意方向的交互式切割方法。提出新的方法即"三维交互式切割法",对三维立体空间和重建后的三维物体进行切割,以便观察物体内部结构。该方法通... 该文研究基于VTK(Visualization Toolkit)进行CT和MRI医学图像序列的三维可视化及任意方向的交互式切割方法。提出新的方法即"三维交互式切割法",对三维立体空间和重建后的三维物体进行切割,以便观察物体内部结构。该方法通过定义隐含的平面来对物体进行切割。实验结果表明:通过所提方法可以对常见医学图像序列和三维重建后的图像进行交互式切割,交互性能好,切割速度快,效果逼真。 展开更多
关键词 交互式三维可视化 交互式切割 vtk
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海洋观测航线断面数据的三维可视化实现 被引量:6
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作者 刘海行 于卫东 +1 位作者 周玉斌 矫玉田 《海洋科学进展》 CAS CSCD 北大核心 2004年第4期493-500,共8页
根据海洋观测航线获取的实测剖面数据,利用IDL的面向对象图形方式编程,实现了在显示海底地形的基础上按航线坐标显示的三维断面分布图。同时,实现了使用鼠标旋转三维断面分布图的功能。
关键词 海洋观测 断面 三维可视化 IDL
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基于开源场景图形的三维可视化与信息管理系统设计 被引量:12
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作者 张文英 何坤金 +1 位作者 张荣丽 刘宇兴 《计算机应用》 CSCD 北大核心 2016年第7期2056-2060,共5页
对于产品虚拟装配的三维呈现过程中难以实现零件信息管理问题,结合电动车模型的拆装,提出三维可视化与信息管理技术融为一体的设计方案。首先,建立三维模型库,并根据电动车模型的拓扑结构和辅助信息,如零件的材质、型号等,建立信息库;其... 对于产品虚拟装配的三维呈现过程中难以实现零件信息管理问题,结合电动车模型的拆装,提出三维可视化与信息管理技术融为一体的设计方案。首先,建立三维模型库,并根据电动车模型的拓扑结构和辅助信息,如零件的材质、型号等,建立信息库;其次,读取信息库中零件与子装配体间的父子关系信息建立目录树,根据子装配体与场景树均为"多叉树"组成结构的原理进行子装配体的三维呈现,再对子装配体的各个节点设置动画完成拆装呈现;最后,采用多线程方法将电动车配件信息管理与可视化有机结合,实现支持三维的拾取交互查询和检索定位查询等功能。系统以世纪鸟电动车进行验证,实现了三维可视化技术与信息系统相融合,能快速有效地为电动车的三维呈现和虚拟装配提供技术支持。实例验证表明,所设计系统可以有效地将零件的信息管理融入到虚拟装配的三维可视化中。 展开更多
关键词 开源场景图形 三维可视化 信息管理 虚拟装配 人机交互
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基于虚拟现实技术的煤炭开采场景与过程的模拟实现 被引量:7
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作者 程娟 钱晋 钱钶 《煤炭技术》 CAS 北大核心 2012年第6期98-99,共2页
根据煤炭开采环境与过程由于受到复杂自然条件限制而危险丛生的现状,将虚拟现实技术引入到煤炭开采行业,选择3ds max和Virtools为开发工具对煤炭开采环境和过程进行三维模拟和仿真,试图实现一个虚拟的煤炭开采仿真系统。利用此仿真系统... 根据煤炭开采环境与过程由于受到复杂自然条件限制而危险丛生的现状,将虚拟现实技术引入到煤炭开采行业,选择3ds max和Virtools为开发工具对煤炭开采环境和过程进行三维模拟和仿真,试图实现一个虚拟的煤炭开采仿真系统。利用此仿真系统进行采煤前的演示和虚拟操作,使煤炭开采人员能够在实际工作过程前更好地熟悉开采环境和开采过程,进而提高其安全意识,从而减少煤炭开采的不安全因素。 展开更多
关键词 煤炭开采 三维建模 虚拟现实技术 虚拟漫游 交互控制
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在视景仿真系统中定制人机交互功能 被引量:4
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作者 童小念 罗铁祥 蓝庆青 《深圳大学学报(理工版)》 EI CAS 北大核心 2008年第1期88-91,共4页
利用三维建模软件MultiGen creato、r仿真软件MultiGen Vega及VC++6.0平台开发虚拟校园视景仿真漫游系统.提出'文字模型'双向交互访问技术,将外部数据库与视景仿真系统相连,设计了按所选模型提取对应文字信息以及根据关键词切... 利用三维建模软件MultiGen creato、r仿真软件MultiGen Vega及VC++6.0平台开发虚拟校园视景仿真漫游系统.提出'文字模型'双向交互访问技术,将外部数据库与视景仿真系统相连,设计了按所选模型提取对应文字信息以及根据关键词切入到对应模型的交互访问功能.试验结果表明,该'文字模型'双向交互访问模式可为视景仿真系统提供良好的人机交互效果. 展开更多
关键词 虚拟现实 视景仿真 人机交互式 三维建模 多媒体技术
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脉冲风洞中用油滴表面流动显示技术研究激波-边界层干扰流动 被引量:1
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作者 唐贵明 《气动实验与测量控制》 CSCD 1993年第3期128-134,共7页
本文介绍一种适合于脉冲风洞中显示复杂流动的表面油滴技术及其实验结果。在实验时间为20至500ms 的风洞中用表面油滴技术能清晰地显示尖前缘翼诱导激波-边界层干扰流表面流谱的详细特征,其特征位置与用铂薄膜电阻温度计和液晶热图测量... 本文介绍一种适合于脉冲风洞中显示复杂流动的表面油滴技术及其实验结果。在实验时间为20至500ms 的风洞中用表面油滴技术能清晰地显示尖前缘翼诱导激波-边界层干扰流表面流谱的详细特征,其特征位置与用铂薄膜电阻温度计和液晶热图测量结果吻合。油流图像表明尖翼高超声速干扰流具有相似于超声速干扰流的锥形特性,大翼偏转角时,存在二次分离再附现象。实验结果证实了尖翼上游干扰角的高超声速相似特性。 展开更多
关键词 激波 边界层干扰 脉冲风洞
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Visualization of geologic geospatial datasets through X3D in the frame of WebGIS 被引量:4
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作者 Frederik von Reumont Jamal Jokar Arsanjani Andreas Riedl 《International Journal of Digital Earth》 SCIE EI 2013年第5期483-503,共21页
3D geo spatial data have become the normal.However,to view the data,usually expert software is required,which have up to now hindered the wide spread use of 3D scenes for the display of geological data.The internet re... 3D geo spatial data have become the normal.However,to view the data,usually expert software is required,which have up to now hindered the wide spread use of 3D scenes for the display of geological data.The internet real time 3D rendering framework X3D is assessed regarding its suitability for building a geological GIS on the internet.Especially important for geological data,3D rendering enhances the intuitive grasp of the data and enables the user to interactively explore it.It is often necessary to find a solution to distribute this data to a wide range of interested parties,experts and non-experts alike.According to the nature of 3D data,the best technique to display geo-data,the modeling of objects and unresolved issues have to be taken into consideration.The internet is the apparent tool for the public distribution and visualization of 3D data and it was found that through the open ISO-standardized format X3D it offers a multitude of possibilities.A 3D geological interactive map was created with these prerequisites to identify challenges and possibilities through this process.It was found that the use of lead to satisfactory results,that could probably not have been achieved with another technology. 展开更多
关键词 WEBGIS GEOLOGY X3d interactive map 3d visualization internet x3dom virtual reality
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基于BIM的水电工程科技成果可视化与应用示范 被引量:7
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作者 林伟 《长江科学院院报》 CSCD 北大核心 2016年第8期134-137,共4页
为解决水电工程科技成果传统二维表达模式存在的学习难、解读难、查阅难等问题,分析了水电工程科技成果传统的纸质承载形式在信息传递与表达上的局限性,提出基于BIM(Building Information Modeling)的水电工程科技成果可视化概念。应用... 为解决水电工程科技成果传统二维表达模式存在的学习难、解读难、查阅难等问题,分析了水电工程科技成果传统的纸质承载形式在信息传递与表达上的局限性,提出基于BIM(Building Information Modeling)的水电工程科技成果可视化概念。应用场景还原技术、三维模拟技术与三维互动技术,对水电工程施工对象建立数字化模型,实现了科技成果施工工艺、施工过程的可视化仿真,以及虚拟施工对象的全方位、多角度浏览互动,在短时间内大量、精确传递科技成果信息,赋予科技成果全新的、高效的学习体验,同时也有利于科技成果的评审鉴定和转化推广。 展开更多
关键词 水电工程 建筑信息模型(BIM) 三维模拟技术 三维互动技术 可视化
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三维物体的交互切割与显示
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作者 周西 刘奇 《微计算机信息》 2009年第34期182-183,共2页
为了观察三维实体内部的构造,提出了基于VTK开发包的对三维实体进行交互操作的方法。首先对三维实体进行平面交互切割,然后利用VTK的消息处理机制来获得内部选定组织的CT值,最后利用Marching Cubes算法重建出该内部组织。实验结果表明... 为了观察三维实体内部的构造,提出了基于VTK开发包的对三维实体进行交互操作的方法。首先对三维实体进行平面交互切割,然后利用VTK的消息处理机制来获得内部选定组织的CT值,最后利用Marching Cubes算法重建出该内部组织。实验结果表明该方法能实现实时地交互切割,并能精确地重建出内部组织的三维模型。 展开更多
关键词 可视化 vtk 切割 MC 人机交互
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Hand gesture tracking algorithm based on visual attention
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作者 冯志全 徐涛 +3 位作者 吕娜 唐好魁 蒋彦 梁丽伟 《Journal of Beijing Institute of Technology》 EI CAS 2016年第4期491-501,共11页
In the majority of the interaction process, the operator often focuses on the tracked 3D hand gesture model at the "interaction points" in the collision detectionscene, such as "grasp" and "release" and objects ... In the majority of the interaction process, the operator often focuses on the tracked 3D hand gesture model at the "interaction points" in the collision detectionscene, such as "grasp" and "release" and objects in the scene, without paying attention to the tracked 3D hand gesture model in the total procedure. Thus in this paper, a visual attention distribution model of operator in the "grasp", "translation", "release" and other basic operation procedures is first studied and a 3D hand gesture tracking algorithm based on this distribution model is proposed. Utilizing the algorithm, in the period with a low degree of visual attention, a pre-stored 3D hand gesture animation can be used to directly visualise a 3D hand gesture model in the interactive scene; in the time period with a high degree of visual attention, an existing "frame-by-frame tracking" approach can be adopted to obtain a 3D gesture model. The results demonstrate that the proposed method can achieve real-time tracking of 3D hand gestures with an effective improvement on the efficiency, fluency, and availability of 3D hand gesture interaction. 展开更多
关键词 visual attention 3d hand gesture tracking hand gesture interaction
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Historical Canadian Fortress in the Latest Technology
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作者 Mitsuyoshi Yabe Elizabeth Goins +3 位作者 Chris Jackson David Halbstein Shaun Foster Sue Bazely 《Journal of Earth Science and Engineering》 2015年第5期271-279,共9页
The paper examines thoroughly how utilizing the latest technology, such as a PC (personal computer), an iPad, or an iPhone, can entertain many people and allow them to learn about the archaeological findings that ha... The paper examines thoroughly how utilizing the latest technology, such as a PC (personal computer), an iPad, or an iPhone, can entertain many people and allow them to learn about the archaeological findings that have become broadly available through the application of new technology. The paper assesses web usage through the difference in availability and convenience of PC and compact devices by connection to 3D augmented reality applications. Modem technology has allowed access to this information to become radically altered, whereas historical records and remains are dwindling. However, the development of 3D technology means that the general public can experientially pursue the dignity of historical buildings. It also becomes easier through the use of the latest technology to decipher the effectiveness of people's interaction with inclusive descriptions of the documentation. This research aims at verifying the visualization of Fort Frontenac by the use of a chronological renovation process. This paper is composed of five elements: an introduction, the historical records about the necessity of 3D modeling, heritage visualization by means of 3D modeling, web design, and iPad and iPhone usage, a comparison of the architectural change that occurred in the 展开更多
关键词 Heritage visualization 3d computer graphics interactive virtual design web design iPad and iPhone use.
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