• Title/Summary/Keyword: 시각화시스템

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A MVC Framework for Visualizing Text Data (텍스트 데이터 시각화를 위한 MVC 프레임워크)

  • Choi, Kwang Sun;Jeong, Kyo Sung;Kim, Soo Dong
    • Journal of Intelligence and Information Systems
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    • v.20 no.2
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    • pp.39-58
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    • 2014
  • As the importance of big data and related technologies continues to grow in the industry, it has become highlighted to visualize results of processing and analyzing big data. Visualization of data delivers people effectiveness and clarity for understanding the result of analyzing. By the way, visualization has a role as the GUI (Graphical User Interface) that supports communications between people and analysis systems. Usually to make development and maintenance easier, these GUI parts should be loosely coupled from the parts of processing and analyzing data. And also to implement a loosely coupled architecture, it is necessary to adopt design patterns such as MVC (Model-View-Controller) which is designed for minimizing coupling between UI part and data processing part. On the other hand, big data can be classified as structured data and unstructured data. The visualization of structured data is relatively easy to unstructured data. For all that, as it has been spread out that the people utilize and analyze unstructured data, they usually develop the visualization system only for each project to overcome the limitation traditional visualization system for structured data. Furthermore, for text data which covers a huge part of unstructured data, visualization of data is more difficult. It results from the complexity of technology for analyzing text data as like linguistic analysis, text mining, social network analysis, and so on. And also those technologies are not standardized. This situation makes it more difficult to reuse the visualization system of a project to other projects. We assume that the reason is lack of commonality design of visualization system considering to expanse it to other system. In our research, we suggest a common information model for visualizing text data and propose a comprehensive and reusable framework, TexVizu, for visualizing text data. At first, we survey representative researches in text visualization era. And also we identify common elements for text visualization and common patterns among various cases of its. And then we review and analyze elements and patterns with three different viewpoints as structural viewpoint, interactive viewpoint, and semantic viewpoint. And then we design an integrated model of text data which represent elements for visualization. The structural viewpoint is for identifying structural element from various text documents as like title, author, body, and so on. The interactive viewpoint is for identifying the types of relations and interactions between text documents as like post, comment, reply and so on. The semantic viewpoint is for identifying semantic elements which extracted from analyzing text data linguistically and are represented as tags for classifying types of entity as like people, place or location, time, event and so on. After then we extract and choose common requirements for visualizing text data. The requirements are categorized as four types which are structure information, content information, relation information, trend information. Each type of requirements comprised with required visualization techniques, data and goal (what to know). These requirements are common and key requirement for design a framework which keep that a visualization system are loosely coupled from data processing or analyzing system. Finally we designed a common text visualization framework, TexVizu which is reusable and expansible for various visualization projects by collaborating with various Text Data Loader and Analytical Text Data Visualizer via common interfaces as like ITextDataLoader and IATDProvider. And also TexVisu is comprised with Analytical Text Data Model, Analytical Text Data Storage and Analytical Text Data Controller. In this framework, external components are the specifications of required interfaces for collaborating with this framework. As an experiment, we also adopt this framework into two text visualization systems as like a social opinion mining system and an online news analysis system.

Implementation of a Component for Visualization of Proximity using IoT Ultrasonic Sensors (IoT 초음파 센서를 이용한 인접거리의 시각화 컴포넌트 구현)

  • Kim, Jun-Young;Kim, Sung-Ki
    • Proceedings of the Korea Information Processing Society Conference
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    • 2015.10a
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    • pp.1830-1833
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    • 2015
  • 모든 사물이 통신으로 연결되는 사물인터넷(IoT) 시대가 도래 하면서, IoT센서를 통한 데이터 시각화에 대한 요구가 증가 하고 있다. 본 연구에서는 전문적인 지식이 없는 사람도 쉽게 방대한 센서 데이터를 저장, 수집 후 쉽게 데이터 시각화할 수 있는 시스템을 구성 하였다. 본 논문에서는 데이터 시각화를 접근성이 용이한 웹 브라우저에서 구현하였고, 웹 브라우저에서 이를 구현하기 위해서는 웹의 다양한 비표준 플러그인(Flash, SilverLight, ActiveX 등)을 사용해야하는 불편함있다. 이를 개선하기 위해 HTML5, CSS, Javascript를 사용해 플러그인을 설치하지 않고 초음파 센서를 사용한 데이터의 실시간 차트 구현을 하였다. 본연구의 결과는 향후, 초음파 센서데이터를 활용한 전후방 장애물 감지 센서, 도난 경보 시스템, IoT센서 데이터 시각화 서비스 등에 활용 될 것으로 기대된다.

Design and Implementation of Smart Gardening System Using Real-Time Visualization Algorithm Based on IoT (IoT 기반 실시간 시각화 알고리즘을 이용한 스마트가드닝 시스템 설계 및 구현)

  • Son, Soo-A;Park, Seok-Cheon
    • Journal of Internet Computing and Services
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    • v.16 no.6
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    • pp.31-37
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    • 2015
  • Data generated from sensors are exploding with recent development of IoT. This paradigm shift requires various industry fields that demand instant actions to analyze the arising data on a real-time basis, along with the real-time visualization analysis. As the existing visualization systems, however, perform visualization after storing data, the response time of the server cannot guarantee the ms-level processing that is close to real-time. They also have a problem of destroying data that can be major resources as they do not possess the process resources. Therefore, a smart gardening system that applies a real-time visualization algorithm using IoT sensing data under a gardening environment was designed and implement in this study. The response time of the server was measured to evaluate the performance of the suggested system. As a result, the response speed of the suggested real-time visualization algorithm was guaranteeing the ms-level processing close to real-time.

Implementation of the Flight Information Visualization System using Google Earth (Google Earth를 이용한 비행정보 시각화 시스템의 구현)

  • Park, Myeong-Chul;Hur, Hwa-Ra
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.10
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    • pp.79-86
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    • 2010
  • This paper presents implementation of a system for effective visualizing flight information of aircraft using Google Earth. This system in order to use a detailed satellite image which provide from Google Earth used COM API. This system appeared the various flight information of the aircraft in the instrument panel using OpenGL and the aircraft flight condition is visible in the Google Earth Map. This research result used to flight evaluation and improvement. In future will be able to apply to flight software development.

A Visual Specification Language for Process Algebra (프로세스 대수를 위한 시각화 명세 언어)

  • On, Jin-Ho;Woo, Su-Heong;Lee, Moon-Kun
    • Proceedings of the Korean Information Science Society Conference
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    • 2011.06b
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    • pp.193-196
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    • 2011
  • 공간적으로 다양하게 재구성되며 이동하는 분산/이동/실시간 시스템을 명세 및 분석하기 위한 기존의 프로세스 대수들은 명세/분석 과정에서 텍스트 기반의 명세 언어를 사용한다. 이로 인하여 프로세스 사이의 이동성과 프로세스들의 공간적 분포를 대한 명세 및 분석 방법은 매우 큰 복잡도가 존재한다. 이를 극복하기 위하여 일반 프로세스 대수를 시각적인 형태로 표현하는 다양한 기법들이 제안되었다. 이러한 시각화 언어들은 시스템의 특정 상태를 명세하거나, 시스템의 속성을 공간적 분포와 링크정보로 분리하는 방법들이 사용되었지만, 명세하고자 하는 시스템의 전체 행위에 대한 효율적인 명세 방법이 존재하지 않고, 시각화 언어임에도 불구하고 텍스트기반의 프로세스 대수와 병행되어 사용되어야만 하는 제약들이 존재한다. 이러한 제약들을 극복하기 위한 하나의 방법으로 본 논문에서는 프로세스 대수를 위한 새로운 시각화 언어인 Onion Visual Language를 제안한다. Onion Visual Language는 프로세스 사이에서 발생하는 이동과 상호작용 등의 전체 행위를 원형의 양파껍질과 같은 형태로 표현하며, 각 프로세스들 사이에서 발생하는 행위들의 관계를 액션으로 표현한다. 또한, 계층화된 프로세스 구조, 프로세스의 상태정보, 프로세스의 미래 행위 정보, 비결정적 행위정보를 포함하여 매우 복잡한 시스템의 특징을 효율적으로 명세/분석 가능하도록 하였다.

Shape Comparison for Human Organ Models Using Multi-resolution Silhouette Images (다해상도 실루엣 영상을 이용한 인체 장기 모델에 대한 형상 비교)

  • 김정식;최수미
    • Proceedings of the Korean Information Science Society Conference
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    • 2003.10b
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    • pp.688-690
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    • 2003
  • 본 논문에서는 다해상도 2차원 실루엣 영상들을 이용하여 3차원 모델간의 형상 유사성을 비교하기 위한 방법을 제안한다. 제안 시스템은 포즈 정규화 모듈, 유사성 계산 모듈, 3차원 시각화 모듈로 구성된다. 형상 비교를 위해서 먼저, 3차원 인체 장기 모델을 입력으로 받아서 정규화를 수행하고, 다해상도 깊이맵을 획득한다. 이어서 유사성 비교를 위해 실루엣 영상을 추출한 후, 유사도 측정을 위해 시그니쳐를 측도로 사용한다. 최종적으로 계산된 결과들은 3차원 글리프 및 컬러 코딩을 이용하여 시각화된다. 본 논문에서 제시한 3차원 형상 비교 시스템은 전처리 단계에서의 정규화 수행을 통하여 스케일 및 회전 변환에 불변하는 특성을 보인다. 그리고 다양한 레벨의 깊이맵을 형상 비교에 사용하여 다해상도 기반의 유사성 평가를 지원하며, 평가 계산 속도와 정확성간의 유연성을 제공한다. 또한 3차원 히스토그램. 3차윈 글리프. 컬러 코딩 시각화 기법들과 2차원 실루엣 피킹 인터페이스를 통하여 인체 장기 모델간의 정량적 형상 차이를 사용자가 직관적으로 평가할 수 있도록 한다. 본 시스템은 차후 데이터베이스를 이용한 원격 진료 시스템에서의 질병 진단, 추적 관찰. 치료계획 등에 활용될 수 있을 것이다.

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Volume Visualization System Using an Analytical Ray Casting (분석적 광선 추적법을 이용한 체적시각화 시스템)

  • Park, Hyun-Woo;Paik, Doo-Won;Jung, Moon-Ryul
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.2
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    • pp.477-487
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    • 2000
  • When volume data is visualized by the ray casting method, the color value of each pixel in the image is obtained by composing the color contributions of the sample points that lie on the ray cast from the pixel point. In most ray tracing methods including Levoy's classical method, the color composition is formulated as a summation of the color contributions of the discrete sample points. However, the more precise color composition is formulated as differential equations over the color contributions of the continuous sample points. The discrete formulation is used, because analytical solutions to the continuous formulations are hard to find. In this paper, however, we have discovered a semi-analytical solution to the continuous formulation of a typical ray tracing of volume data. We have applied both Levoy's method and ours to the same set of data, and compared the visual quality of both results. The comparison shows that our method produces a more fine-grained visualization of volume data.

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A Study on the Methodology of Stereo-Scope Visualization Using Virtual Reality Technique (가상현실 기술을 이용한 입체영상 시각화 기법에 관한 연구)

  • Shin, Mi-Hae;Seo, Su-Seok;Kim, Eui-Jeong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.6
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    • pp.1482-1487
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    • 2010
  • Recently, Product and contents using virtual reality technique is spreading quickly. Visualization using virtual reality technique is provide a differentiated experience with existing visualization methodology by giving enhanced immersiveness to users. This paper is make a suggestion to a new methodology of stereo-scope visualization and talk about this utilization possibility. We proposed the design method of stereo-scope realization system that is composed at least two screen. through which users will feel more immersiveness and experience to virtual reality. The suggestion system of this paper will widely used in various industry such as virtual reality exhibitions, shows, games, training programs, etc.

Analysis and Compensation of Time Synchronization Error on SAR Image (시각 동기화 오차가 SAR 영상에 미치는 영향 분석 및 보상)

  • Lee, Soojeong;Park, Woo Jung;Park, Chan Gook;Song, Jong-Hwa;Bae, Chang-Sik
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.48 no.4
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    • pp.285-293
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    • 2020
  • In this paper, to improve Synthetic Aperture Radar (SAR) image quality, the effect of time synchronization error in the EGI/IMU (Embedded GPS/INS, Inertial Measurement Unit) integrated system is analyzed and state augmentation is applied to compensate it. EGI/IMU integrated system is widely used as a SAR motion measurement algorithm, which consists of EGI mounted to obtain the trajectory and IMU mounted on the SAR antenna. In an EGI/IMU integrated system, a time synchronization error occurs when the clocks of the sensors are not synchronized. Analysis of the effect of time synchronization error on navigation solutions and SAR images confirmed that the time synchronization error deteriorates SAR image quality. The state augmentation is applied to compensate for this and as a result, the SAR image quality does not decrease. In addition, by analyzing the performance and the observability of the time synchronization error according to the maneuver, it was confirmed that the time-variant maneuver such as rotational motion is necessary to estimate the time synchronization error adequately. In order to reduce the influence of the time synchronization error on the SAR image, the time synchronization error must be compensated by performing maneuver changing over time such as a rotation before SAR operation.

A System for Medical Statistical Analysis Using Guide Maps and Interactive Visualization (가이드 맵과 인터랙티브 시각화를 이용한 의료 통계분석 시스템)

  • Lee Don-Soo;Choi Soo-Mi
    • Journal of Korea Multimedia Society
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    • v.8 no.7
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    • pp.1000-1011
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    • 2005
  • This paper presents a system for medical statistical analysis that helps medical professionals analyze clinical data more easily and accurately. It is able to recommend proper methods according to the distribution of sample data, and provides guide maps composed of icons for the understanding of the process of analysis. Besides general statistical analysis, it includes commonly-used statistical methods for medical fields, such as survival analysis and methods for repetitive measurements. The results of analysis are interactively displayed by 3D glyph-based visualization with uncertainty.

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