• Title/Summary/Keyword: visualization process

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A Study on the Measurement Method of Spatial Position Compensation for Virtual Reality and Real Space Synchronization (가상현실과 실공간 동기화를 위한 공간 위치보정 측정 방법론에 대한 연구)

  • Park, Kee-Jin;Lee, Byoung-Hwak;Kim, Nam-Hyuk;Yoon, Sung-Ho
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.17 no.6
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    • pp.136-143
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    • 2018
  • Recently, with the rapid development of virtual reality technology, there have been more and more applications of virtual reality technology in various fields. In order to realize a virtual reality, a method of implementing a visualization environment through an HMD (Head Mounted Display) is widely used. However, in the current visualization environment through the HMD, the user feels dizziness when worn, It has the disadvantage of imposing restrictions on. In this study, it is aimed to realize virtual reality visualization environment through multi-screen environment which improves the experience effect of virtual environment by using existing screen instead of visualization through HMD, and compensates for shortcomings of HMD method. In order to realize a multi-screen environment as a highly visualized environment, a technique for matching the spatial position of the multi-screen with the spatial position of the virtual environment is required. To do this, we need an efficient method to precisely measure the position of the space, and we propose a spatial position compensation methodology that can efficiently and precisely measure the position of the real space and reflect it in the virtual environment.

A study on rethinking EDA in digital transformation era (DX 전환 환경에서 EDA에 대한 재고찰)

  • Seoung-gon Ko
    • The Korean Journal of Applied Statistics
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    • v.37 no.1
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    • pp.87-102
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    • 2024
  • Digital transformation refers to the process by which a company or organization changes or innovates its existing business model or sales activities using digital technology. This requires the use of various digital technologies - cloud computing, IoT, artificial intelligence, etc. - to strengthen competitiveness in the market, improve customer experience, and discover new businesses. In addition, in order to derive knowledge and insight about the market, customers, and production environment, it is necessary to select the right data, preprocess the data to an analyzable state, and establish the right process for systematic analysis suitable for the purpose. The usefulness of such digital data is determined by the importance of pre-processing and the correct application of exploratory data analysis (EDA), which is useful for information and hypothesis exploration and visualization of knowledge and insights. In this paper, we reexamine the philosophy and basic concepts of EDA and discuss key visualization information, information expression methods based on the grammar of graphics, and the ACCENT principle, which is the final visualization review standard, for effective visualization.

Implementation of an Information Feature Visualization System (정보 특성 시각화 시스템 구축)

  • Cho, Yoon-Ki;Ha, Jae-Kwan;Koo, Yeon-Seol
    • Journal of KIISE:Computing Practices and Letters
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    • v.6 no.5
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    • pp.487-495
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    • 2000
  • Information Feature Visualization integrates the traditional information retrieval techniques and visualization techniques and reduces the time and effort from searching for requested information by promoting apprehension from the wide and various internet information. It's used to understand the related information tendency by supporting the statistic materials for retrieved results. It's useful to catch a tendency regarding information over the search process. Recently, by increasing interest in the information visualization in the library system, The research about various visualization technology and searching system has been developed by many researchers. So, to describe systematically and visually the feature of information, we'll make the element of information visualization uniform by various views and suggest paradigm renewing retrieval technology using information outlining techniques by developing search tool to improve apprehension about information and navigate more easily among information. We can improve user's apprehension about search information and search more usefully.

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A Gene Clustering Method with Hierarchical Visualization of Alignment Pairs (계층적 정렬쌍 가시화를 이용한 유전자 클러스터 탐색 알고리즘)

  • Jin, Hee-Jeong;Park, Su-Hyun;Cho, Hwan-Gue
    • The KIPS Transactions:PartA
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    • v.16A no.3
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    • pp.143-152
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    • 2009
  • One of the main issues in comparative genomics is to study chromosomal gene order in one or more related species. For this purpose, the whole genome alignment is usually applied to find the horizontal gene transfer, gene duplication, and gene loss between two related genomes. Also it is well known that the novel visualization tool with whole genome alignment is greatly useful for us to understand genome organization and evolution process. There are a lot of algorithms and visualization tools already proposed to find the "gene clusters" on genome alignments. But due to the huge size of whole genome, the previous visualization tools are not convenient to discover the relationship between two genomes. In this paper, we propose AlignScope, a novel visualization system for whole genome alignment, especially useful to find gene clusters between two aligned genomes. This AlignScope not only provides the simplified structure of genome alignment at any simplified level, but also helps us to find gene clusters. In experiment, we show the performance of AlignScope with several microbial genomes such as B. subtilis, B.halodurans, E. coli K12, and M. tuberculosis H37Rv, which have more than 5000 alignment pairs (matched DNA subsequence).

A Practical Study on Code Static Analysis through Open Source based Tool Chains (Open Source 기반 툴 체인화를 통한 코드 정적 분석 연구)

  • Kang, Geon-Hee;Kim, R. Young Chul;Yi, Geun Sang;Kim, Young Soo;Park, Yong. B.;Son, Hyun Seung
    • KIISE Transactions on Computing Practices
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    • v.21 no.2
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    • pp.148-153
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    • 2015
  • In our domestic software industries, it is focused on such a high quality development/ testing process, maturity measurement, and so on. But the real industrial fields are still working on a code-centric development. Most of the existing legacy systems did not keep the design and highly increased the code complexity with more patching of the original codes. To solve this problem, we adopt a code visualization technique which is important to reduce the code complexity among modules. To do this, we suggest a tool chaining method based on the existing open source software tools, which extends NIPA's Software Visualization techniques applied to procedural languages. In addition, it should be refactored to fix bad couplings of the quality measurement indicators within the code visualization. As a result, we can apply reverse engineering to the legacy code, that is, from programming via model to architecture, and then make high quality software with this approach.

3D Visualization of Medical Image Registration using VTK (VTK를 이용한 의료영상정합의 3차원 시각화)

  • Lee, Myung-Eun;Kim, Soo-Hyung;Lim, Jun-Sik
    • The KIPS Transactions:PartB
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    • v.15B no.6
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    • pp.553-560
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    • 2008
  • The amount of image data used in medical institution is increasing rapidly with great development of medical technology. Therefore, an automation method that use image processing description, rather than manual macrography of doctors, is required for the analysis large medical data. Specially, medical image registration, which is the process of finding the spatial transform that maps points from one image to the corresponding points in another image, and 3D analysis and visualization skills for a series of 2D images are essential technologies. However, a high establishment cost raise a budget problem, and hence small scaled hospitals hesitate importing these medical visualizing system. In this paper, we propose a visualization system which allows user to manage datasets and manipulates medical images registration using an open source graphics tool - VTK(Visualization Tool Kit). The propose of our research is to get more accurate 3D diagnosis system in less expensive price, compared to existing systems.

Analysis and Application of Performance Improvement of a Real-time Simulation Visualization based on Multi-thread Pipelining Parallel Processing (다중 스레드 파이프라인 병렬처리를 통한 실시간 시뮬레이션 시각화의 성능 향상 해석 및 적용)

  • Lee, Jun Hee;Song, Hee Kang;Kim, Tag Gon
    • Journal of the Korea Society for Simulation
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    • v.26 no.3
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    • pp.13-22
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    • 2017
  • This research proposes and applies a pipelining parallel processing technique to enhance the speed of visualizing the results of real-time simulations. Generally, a simulation with real-time visualization consists of three processes: executing a simulation model, transmitting simulation result, and visualizing simulation result. If we have these processes in serial, the latency from simulation to visualization will be very long, which degrades the speed of visualization of data from real-time simulation. Thus, the main purpose of this research is maximizing performance by adapting pipelining parallel processing technique to the real-time simulation visualization. Also we show that performance is improved by adding multi-threading technique to each process. This paper proposes a theoretical performance model and simulation results of the techniques and then we applied this to an air combat simulation model as a case study. As the result, it shows that the performance is greatly enhanced than the original model's execution time.

Isosurface Component Tracking and Visualization in Time-Varying Volumetric Data (시변 볼륨 데이터에서의 등위면 콤포넌트 추적 및 시각화)

  • Sohn, Bong-Soo
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.10
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    • pp.225-231
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    • 2009
  • This paper describes a new algorithm to compute and track the deformation of an isosurface component defined in a time-varying volumetric data. Isosurface visualization is one of the most common method for effective visualization of volumetric data. However, most isosurface visualization algorithms have been developed for static volumetric data. As imaging and simulation techniques are developed, large time-varying volumetric data are increasingly generated. Hence, development of time-varying isosurface visualization that utilizes dynamic properties of time-varying data becomes necessary. First, we define temporal correspondence between isosurface components of two consecutive timesteps. Based on the definition, we perform an algorithm that tracks the deformation of an isosurface component that can be selected using the Contour Tree. By repeating this process for entire timesteps, we can effectively visualize the time-varying data by displaying the dynamic deformation of the selected isosurface component.

Analysis of Elementary Students' Visualization Process of Creative Problem Solving in Science (초등학생들의 창의적 과학 문제 해결 과정에서 나타나는 시각화 활동 분석)

  • Kim, Jisoo;Jang, Shinho
    • Journal of Korean Elementary Science Education
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    • v.36 no.1
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    • pp.73-84
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    • 2017
  • Cultivating creativity is one of the goals in science education. Previous studies report that students use visualization while they solve the creative science problem and it looks helpful to make them think more. For this study three $6^{th}$ grade students were selected in the consideration of pre-test through the qualitative think-aloud method. The results show that even though students have many ideas in planning stage in problem solving, they appeared to visualize familiar and empirical ideas at first. So if teachers want to watch another creative ideas, they tended to give enough time to visualize many ideas. Students drew lines, circles, "X"marks to select or remove information during their problem solving works. They said these marks seem to be useful to understand question. However, removal marks sometimes turn out to block another chance to re-think. Also students did not have a chance to reflect what they did. It means that they lose the chance to do convergent thinking. The implications of this study include the importance of students' visualization works to facilitate their creative ideas and support their problem solving strategies. In this study, we discuss the meaningful messages for teachers who construct science classroom for creativity.

Modeling and Visualization of Flood Inundation in Natural River (자연하천의 홍수범람 모의 및 가시화)

  • Goh, Tae-Jin;Jung, Tae-Sung
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.3
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    • pp.157-164
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    • 2008
  • A modeling and visualization system of flood inundation in natural river, FloodViz, has been developed. Unsteady river flow and flood inundation are calculated by FLDWAV model. FLDWAV model and HEC-RAS model have been applied to a flood event at the same time to check model reliability. Simulation results of the two models showed good agreements. Flood propagation and inundation process can be analyzed accurately and easily by using visualization function of the FloodViz. Even though FloodViz users don't know well about both hydraulics and hydrology, they can understand flood inundation phenomena easily. This system can be used as a useful tool in forecasting flood inundation and observing the simulation results. Countermeasures for natural disaster prevention due to flood inundation can be established rapidly by using the FloodViz.