• Geophysics and Geophysical Exploration
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• v.5 no.2
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• pp.71-77
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• 2002

We developed a modeling and visualization software that can analyze 3-dimensional seismic data. The software divides 3 dimensional space into a series of vertical and horizontal polygons, and allows the various seismic attributes and other spatial information to be stored on these polygons. The program can pick a particular pattern in semi-automatic mode, and store the pattern in the spatial DB. The pattern can be modeled and visualized in 3 dimensional space.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.4
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• pp.35-45
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• 2011

The purpose of this study is visualizing climate change contents from Weather Research and Forecasting model and providing useful tool to anyone who want to use them for communication and actual movement. As a results, we have built a process and user interface for publishing Arrow KML, BWS KML, and DI KML. Arrow KML provide wind rose service and wind attribute information for each arrow. BWS KML provide a wind power index and DI KML provide a thermal comfort. All KML contents are more reliable because those are visualized from the scientifically verified climate change prediction model. Further study will focus on searching for climate change contents mining and useful contents design for wide range of climate change mitigation/adaptation activity.

• Smart Media Journal
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• v.12 no.11
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• pp.67-76
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• 2023

We propose a visualization method to respond to civil complaints through an analysis of the impact of blasting. In order to analyze the impact of blasting on tunnel excavation, we propose a simulation visualization method considering the mutual influence of the construction infrastructure by linking measurement data and 3D BIM model. First, the level of BIM modeling required for simulation was defined. In addition, vibration measurement data were collected for the GTX-A construction site, terrain and structure BIM were created, and a method for visualizing measurement data using blast vibration estimation was developed. Next, a spherical blasting influence source library was developed for visualization of the blasting influence source, and a specification table that could be linked with Revit Dynamo automation logic was constructed. Using this result, a method for easily visualizing the impact analysis of blasting vibration in 3D was proposed.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.449-452
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• 2001

가상공간에서 발생하는 아바타 상호작용 유형과 인상형성에 영향을 주는 요인들을 분석하여 아바타간의 사회적 관계도(DOSR)를 정의하였다. 아바타간 사회적 관계도는 가상공간에서 커뮤니티 형성에 효율성을 제공하는 요소들로서 이루어져 있으며, 사용자의 가중치를 적용하여 산출된다. 본 논문에서는 사회적 관계도를 활용할 수 있는 방법에 대해서 제시하였고, 사회적 관계도를 이용한 아바타 시각화로 인지(Awareness)의 향상에 중점을 두어 시스템을 구현하였다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.26 no.6
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• pp.599-609
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• 2008

Development of computer and electronic technology leads innovative progress in spatial informatics and successful commercialization. Geospatial information technology plays an important role in decision making in various applications. However, information display media are two-dimensional plane that limits visual perception. Understanding human visual processing mechanism to percept stereo vision makes possible to implement three-dimensional stereo image display. This paper proposes on-the-fly stereo image generation methods that are involved with various exterior and camera parameters including exposure station, viewing direction, image size, overlap and focal length. Collinearity equations and parameters related with stereo viewing conditions were solved to generate realisitc stereo imagery. In addition stereo flying simulation scenery was generated with different viewing locations and directions. The stereo viewing is based on the parallax principle of two veiwing locations. This study implemented anaglyphic stereogram, polarization and lenticular stereo display methods. Existing display technology has limitation to provide visual information of three-dimensional and dynamic nature of the real world because the 3D spatial information is projected into 2D plane. Therefore, stereo display methods developed in this study improves geospatial information and applications of GIS by realistic stereo visualization.

• Journal of Korea Multimedia Society
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• v.16 no.12
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• pp.1482-1494
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• 2013

As the result of this research, the user platform, which reflects the latest interface technology, supports the ideal interface environment in a future city through using the data from social media. The goal of this research is constructing the user interface platform to approach to the data in an easier and practical condition of the interface environment smart space of the future intelligent city for user. It constructs the main module to organize the platform. Interface user platform modules, which were all based on visualization of service, are constructed by visualization agents, visualization social networks, visualization icons, visualization services, visual data, visual maps and visual classes. In this research, by the variety of services including delivering information, to find the interface environment for the proper interface technology, this research suggests "Interface User Platform" as the result.

• The KIPS Transactions:PartB
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• v.8B no.2
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• pp.164-172
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• 2001

본 논문에서는 시각화와 공간적, 속성 혼합 쿼리를 수행할 수 있는 관계형 데이터베이스를 설계하고 구현하였다. 쿼리에 사용되는 데이터형은 슬라이스, MPR, 볼륨 렌더링으로 시각화할 수 있으며, 쿼리는 아탈라스를 이용하는 경우와 그렇지 않는 경우를모두 고려하였다. 영상 데이터는 공간충전 곡선으로 공간적으로 클러스트링한 후 무손실 압축하여 데이터베이스에 저장된다. 본 논문은 저장 데이터의 양을 줄이기 위하여 관심영역의 크기에 따라 창의 크기가 변하는 적응적 Hibert 곡선을 제안하였으며, 실험에서 Hibert 곡선의 적용한 데이터보다 약 1.15배 높은 압축율을 보였다. 또한 아틀라스에 대한 뇌종양의 공간적 쿼리 결과를 통하여 본 의료 영상 데이터베이스의 유용성을 보였다.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.343-346
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• 1998

공간 주파수 대역 변화로 대표되는 이심률(eccentricity)에 따른 시각 정보처리의 특성 변화는 많은 시각연구에서 보고된 바 있다. 그러나, 연구된 시자극들의 단순성에 의하여 이 특성의 인공시각 기술개발에의 활용에는 어려운 부분이 많았다. 이에 본 연구에서는 실생활에서 쉽게 접하는 얼굴영상을 이용하여 이심률에 따른 공간 주파수 대역 변화를 정량화 하였다. 이 결과는 최근 관심이 고조되고 있는 생물 시각체계의 인공시각 기술개발의 다양한 방면에 활용될 수 있을 것으로 기대된다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.06a
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• pp.270-271
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• 2010

최근 공간정보 산업의 변화와 국내외 포털의 지도서비스 및 iPhone의 국내 진출을 계기로 공간정보에 대한 수요와 정책적 요구 사항이 증가되고 있는 추세이다. 현재까지 개발된 모바일 매핑 시스템은 공공분야인 시설물 측량 및 수치지형도 수정갱신에 사용된 시스템으로 현재 민간 서비스 시장의 요구 충족에는 어려움이 따른다. 이를 위해 본 연구에서는 민간 서비스 시장 요구 충족을 목적으로 모바일 매핑 기술을 기반으로 필수 장치만 사용하여 시스템을 구성하였으며, geoSensor로 취득된 공간정보를 다양한 컨텐츠로 활용하기 위한 필수 요소인 취득 데이터간 동기화용 시각동기화 인터페이스를 구현하였다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.2
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• pp.117-131
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• 2007

Representation of building internal space is an active research area as the need for more geometrically accurate and visually realistic increases. 3 dimensional representation is common ground of research for disciplines such as computer graphics, architectural design and engineering and Geographic Information System (GIS). In many cases CAD plans are the starting point of reconstruction of 3D building models. The main objectives of building reconstruction in GIS applications are visualization and spatial analysis. Hence, CAD plans need to be preprocessed and edited to adapt to the data models of GIS SW and then georeferenced to enable spatial analysis. This study automated the preprocessing of CAD data using AutoCAD VBA (Visual Basic Application), and the processed data was topologically restructured for further analysis in GIS environment. Accuracy of georeferencing CAD data was also examined by comparing the results of coordinate transformation by using digital maps and GPS measurements as the sources of ground control points. The reconstructed buildings were then applied to visualization and network modeling.