• Title/Summary/Keyword: 3D visualization

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Development of 3D Visualization Technology for Meteorological Data Using IDL (IDL을 이용한 기상자료 3 차원 가시화 기술개발 연구)

  • Joh Min-su;Yun Ja-Young;Seo In-Bum
    • 한국가시화정보학회:학술대회논문집
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    • 2002.11a
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    • pp.77-80
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    • 2002
  • The recent 3D visualization such as volume rendering, iso-surface rendering or stream line visualization gives more understanding about structures or distribution of data in a space and, moreover, the real-time rendering of a scene enables the animation of time-series data. Because the meteorological data is frequently formed as multi-variables, 3-dimensional and time-series data, the spatial analysis, time-series analysis, vector display, and animation techniques can do important roles to get more understanding about data. In this research, our aim is to develop the 3-dimensional visualization techniques for meteorological data in the PC environment by using IDL. The visualization technology from :his research will be used as basic technology not only for the deeper understanding and the more exact prediction about meteorological environments but also for the scientific and spatial data visualization research in any field from which three-dimensional data comes out such as oceanography, earth science, or aeronautical engineering.

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Flow Visualization in Microchannel Using Confocal Scanning Microscope (공초점 주사현미경을 통한 미세 유로에서의 유동 가시화)

  • Chang Jun Keun;Park Sung-Jin;Kim Jung Kyung;Han Dong Chul
    • Journal of the Korean Society of Visualization
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    • v.1 no.1
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    • pp.28-33
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    • 2003
  • This paper presents the visualization method in which 3-dimensional(3D) microchannel flow can be detected using a confocal scanning microscope. By soft-lithography, we fabricated various Bio-MEMS(Micro Electro-Mechanical System) devices such as a disposable microchip for a flow cytometer and a micro-mixer, which have 3D structures. Injecting aqueous fluorescent solution in the microfluidic devices, we measured the flow in a steady state by the confocal scanning microscope. At first, we explain the principle of the confocal scanning microscope. And then we show the results from 3D visualization of microscopic flow structures using the confocal scanning microscope.

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STUDY ON 3-D VIRTUAL REALITY FOR STEREOSCOPIC VISUALIZATION ON THE WEB (웹 환경에서의 입체적 가시화를 위한 3-D 가상현실 기법의 적용)

  • Lee, J.H.;Park, Y.C.;Kim, J.H.;Kim, B.S.
    • Journal of computational fluids engineering
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    • v.16 no.1
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    • pp.30-35
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    • 2011
  • In this paper, our effort to apply 3-D Virtual Reality system for stereoscopic visualization of mesh data on the web is briefly described. This study is an extension of our previous and on-going research efforts to develop an automatic grid generation program specialized for wing mesh, named as eGWing. The program is developed by using JAVA programming language, and it can be used either as an application program on a local computer or as an applet in the network environment. In this research advancing layer method(ALM) augmented by elliptic smoothing method is used for the structured grid generation. And to achieve a stereoscopic viewing capability, two graphic windows are used to render its own viewing image for the left and right eye respectively. These two windows are merged into one image using 3D monitor and the viewers can see the mesh data visualization results with stereoscopic depth effects by using polarizing glasses. In this paper three dimensional mesh data visualization with stereoscopic technique combined with 3D monitor is demonstrated, and the current achievement would be a good start-up for further development of low-cost high-quality stereoscopic mesh data visualization system which can be shared by many users through the web.

Research on the Teaching Building-blocks in Elementary Geometry Class using 3D Visualization SW (3D Visualization SW를 활용한 초등학교 쌓기나무 도형교육에 관한 연구)

  • Bae, Hun Joong;Kim, Jong-seong
    • The Journal of the Korea Contents Association
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    • v.17 no.6
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    • pp.71-80
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    • 2017
  • The standards for achievement levels for building blocks in elementary geometry class is to enhance spatial cognitive ability through practices describing shape patterns of building blocks observed from different directions. However, most of building block in the textbook is described from only one perspective. Even worse, some examples in the textbook are almost impossible to observe in the real world. Contrary to this, simulated views by Wings3D has shown that each box may look quite differently from different angles let alone the size of each box. Using Wings3D, it is also very easy to build different types of building blocks with various levels of difficulty in the virtual space. Based on these results, in this study, 3D visualization SW is suggested as a potential pedagogical tool for the elementary geometry class to help kids perceive objects in space more precisely. We have shown that 3D visualization SW such as Wings3D could be a powerful, compact 3D SW for most of subjects which are covered in elementary geometry education. Wings3D has another advantage of economic open source SW fully compatible with school PCs.

3-D Dynamic Visualization by Stereoscopic PIV

  • LEE Young-Ho
    • 한국가시화정보학회:학술대회논문집
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    • 2004.12a
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    • pp.15-23
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    • 2004
  • The present study is aimed to achieve dynamic visualization from the in-house 3-D stereoscopic PIV to represent quantitative flow information such as time-resolved 3-D velocity distribution, vorticity, turbulent intensity or Reynolds stresses and so on. One of the application of the present study is Leading edge extension(LEX) flow appearing on modern delta wing aircraft. The other is mixing flow in stirring tank used in industry field. LEX in a highly swept shape applied to a delta wing features the modern air-fighters. The LEX vortices generated upon the upper surface of the wing at high angle of attack enhance the lift force of the delta wing by way of increased negative suction pressure over the surfaces. The present method resolves also the complicated flow patterns of two type impellers rotating in stirring vessel. Flow quantities such as three velocity vector components, vorticity and other flow information can be easily visualized via the 3D time-resolved post-processing visualization. And it makes the easy understanding of the unsteady flow characteristics of the typical industrial mixers.

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A Study on Volume Visualization Method of Three-Dimensional Ultrasonic Medical Image (삼차원 초음파 의료 영상의 입체 묘사 기법 연구)

  • Choi, J.P.;Ha, M.H.;Ra, J.B.
    • Proceedings of the KOSOMBE Conference
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    • v.1995 no.05
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    • pp.45-48
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    • 1995
  • Visualization of three dimensional medical images has been studied in many ways. For CT and MRI data, 3D rendering schemes are commercially available and widly used. However visualization of ultrasonic 3D data is not popular yet, even though its potentional in medical diagnosis seems very high. In this paper we try to visualize 3D ultrasonic data. The basic method is adopted from the volume rendering technique. Based on the characteristics of the ultrasonic images, 3D visualization algorithm is developed and applied for the 3D image set of a dog heart.

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Development of 3d visualization system of sludge lancing system for $\Delta$60 steam generator using directX (DirectX를 이용한 원자력발전소 증기발생기 슬러지 제거용 로봇작업의 3차원 Visualization 시스템 개발)

  • 김석곤
    • Proceedings of the KIPE Conference
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    • 2000.07a
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    • pp.476-479
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    • 2000
  • 한국전력연구원은 로봇제어기술과 가상현실기술을 접목하는 과정의 일환으로 로봇작업을 3D 그래픽으로 가시화(Visualization) 하는 연구를 수행하고 있다 본 논문에서는 원자력발전소 증기발생기 내부에 발생하는 슬러지를 제거하기 위한 로봇시스템과 그 작업내용의 3차원 Visualization 시스템 개발에 관한 내용을 다룬다. 본 시스템은 Microsoft사의 제작툴인 DirectX를 그래픽엔진으로 사용하였으며 C++로 작성되어있어 매우 개방적인 구조를 가지고 있어 타 분야로의 적용이 용이하다.

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A Study on Non-Verbal Expressions for the Realization of Narrative Visualization -Focusing on a 3D Cat Character, "Puss" (내러티브 시각화 구현을 위한 비언어적 표현 연구-3D 고양이 캐릭터 "Puss"를 중심으로)

  • Lee, Young-Suk;Kim, Sang-Nam
    • Journal of Korea Multimedia Society
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    • v.19 no.3
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    • pp.659-672
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    • 2016
  • In animated films, characters materialize narratives through acting. The narrative is an element to materialize accurate delivery of lines and emotions. The non-verbal actions should express lots of emotions and lines in scenes, and also they can be used as a way of empathy. This study analyzed the visualization factors of narrative focusing on a cat character frequently shown in animated films. For this, the visualization factors of non-verbal actions expressed in characters' personal space and dynamic space were extracted. Based on this, it aims to suggest the emotion expressing method of characters to realize effective narrative visualization. In the future, it aims to be used as reference data in case when producing non-verbal communication for 3D characters.

A Design of A Dynamic Configurational Multimedia Spreadsheet for Effective HCI (효과적인 HCI를 위한 동적 재구성 멀티미디어 스프레드쉬트 설계)

  • Jee Sung-Hyun
    • The Journal of the Korea Contents Association
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    • v.6 no.1
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    • pp.14-22
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    • 2006
  • The multimedia visualizational spreadsheet environment is shown to be extremely effective in supporting the organized visualization of multi-dimensional data sets. In this paper, we designed the visualization model that consists of the configurational 2D arrangement of spreadsheet elements at run time and each spreadsheet element has a novel framestack. As the feature, it supports 3D data structure of each element on the proposed model. It enables the visualization spreadsheet 1) to effectively manage, organize, and compactly encapsulate multi-dimensional data sets, 2) to reconfigure cell-structures dynamically according to client request, and 3) to rapidly process interactive user interface. Using several experiments with scientific users, the model has been demonstrated to be a highly interactive visual browsing tool for 2D and 3D graphics and rendering in each frame.

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Financial Data Assessment Using Table-Graph-Mixed Reality Visualization

  • Tanlamai, Uthai;Savetpanuvong, Phannaphatr;Kunarittipol, Wisit
    • Journal of Information Technology Applications and Management
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    • v.19 no.1
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    • pp.13-24
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    • 2012
  • Usability and knowledge drawn from utilizing various ways of representing accounting data were examined. Classroom experiments were conducted to compare students' assessment of financial data using table of numbers, 2-dimensional column graphs (2D), 3-dimensional column graphs (3D), and mixed reality visualization of true 3-dimensional graphs (MR). The results showed that in assessing the financial status and performance of a firm, Table of numbers and MR took longer than 2D and 3D graphs. The time spent on true 3D graphs using MR technology was about the same as Table of numbers. When compared the assessment scores of the firm's financial status and performance between participants and experts, the difference was the least when participants used 2D graphs. However, MR was seen as being a new way to provide data of greater complexity and was very useful for financial information.