• Korean Journal of Computational Design and Engineering
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• v.16 no.6
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• pp.437-448
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• 2011

A robotic spatial augmented reality (RSAR) system combines a robotics technology with a spatial augmented reality system (SAR) where cameras are used to recognize real objects and projectors augment information and user interface directly on the surface of the recognized objects, rather than relying on handheld display devices. Moreover, a robotic module is actively used to discover and utilize the context of users and environments. The control of a RSAR system involves several issues from different technical fields such as classical inverse kinematics of motors where projector-camera pairs are mounted, inverse projection problems to find appropriate internal/external parameters of projectors and cameras, and image warping in graphics pipeline to compensate the kinematic constraints. In this paper, we investigate various control issues related to a RSAR system and propose basic approaches to handle them, specially focused on the prototype RSAR system developed in ETRI.

• Korean Journal of Computational Design and Engineering
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• v.12 no.1
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• pp.15-26
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• 2007

We have developed a method that enables a user to better understand and enjoy the contents of 3D digital archives, thereby enhancing the user's experience. The system's interactive interface, built using virtual reality technology, enables the user to "walk through" the archives, comparing two or the same content at different points in time. For example, a user can compare the proposed design for a building with the actual building and can compare the states of restoration of a cultural heritage site over time. This ability to perform multilateral comparisons enables the user to clarify the relationship between contents, the influence of one content on another, and the causal relationship between contents. Testing of a prototype system for a 3D digital archive of cultural heritage sites showed that it worked smoothly and that the users could easily operate the navigation system.

• International journal of advanced smart convergence
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• v.3 no.1
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• pp.1-6
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• 2014

An expert network administrator is not always stationed as disasters happen. In that case, it is desirable that a novice administrator is capable of taking part in network recovery operations as well. In this paper, aknowledge-based network management system in emergency situations is presented. We use the Active Information Resource based Network Management System (AIR-NMS) to relieve the human administrator from parts of her management tasks and present an interface that remotely can control this management system. The effectiveness of the system is demonstrated by experiments using a prototype system.

• Journal of Korean Institute of Industrial Engineers
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• v.21 no.3
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• pp.441-461
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• 1995

This research proposes an Integrated Product Information Model (IPIM) using STEP (Standard for the Exchange of product model data) for Computer Integrated Manufacturing (CIM) of Concurrent Engineering (CE). IPIM is based on Geometry and Topology (STEP Part 42), Form Feature (STEP Part 48), and Tolerance (STEP Part 48) for representing the integrated information of mechanical parts. For the IPIM, 1) new entities are developed for integration of existing entities, and 2) the existing entities are restructured and modified for a special application protocol. In CIM or CE, the advantages of using IPIM having integrated form of geometry, feature and tolerance are 1) integration of product design, process design and manufacturing sequentially or concurrently. 2) keep the product data consistency, modified by different domain, and 3) automatic data exchange between different application software and different hardware. The prototype system is composed of CAD, Data Probe, DBMS and SDAI (Standard Data Access Interface), and the generated STEP data is stored in a step file of DBMS for other applications.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2006.04a
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• pp.333-337
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• 2006

As IT-based technologies develop, 3D GIS applications that digitally model real environment are being increased. Although the terms related with 3D CIS are used increasingly, research efforts and applications are mostly limited to only 2D GIS or 3D modeling respectively. The reasons are viewed that there have been less research findings or software tools about integration of 2D GIS and 3B models. Thus, this study presents a method to integrate 2D GIS and 3D models by using database as the means for linkage. To illustrate the process, we developed a prototype application using C# language. Within an interface we showed how to integrate different libraries - EON Studio and MapObjects. We expect that the integration techniques we suggest here can be applied to such areas as disaster prevention, transportation and natural resources management.

• Journal of the military operations research society of Korea
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• v.15 no.2
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• pp.105-126
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• 1989

A Geographic Information System (GIS) is a system designed to capture, store, manipulate, retrieve and display the data which are referenced to geographic location. With the progress of computer graphics technologies, GIS is now become applicable to microcomputer level. A prototype Sea Information System (SIS) applicable to microcomputer has been developed for serving informations related to naval operations in the special sea areas. This system includes GIS technologies, cartographic data captured through the tablet digitizer. which results immediate displaying on pen plotters. GIS provides users with menu-driven user interface for the retrieval of informations concerning military zones, patrol area of war ship, naval bases, radar sites and its search area, missile stations, and ships' current positions. The system is currently applicable to IBM PC/AT. Minimal hardware configuration consists 640k RAM, hard disk, and pen plotter or dot matrix printer.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.934-935
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• 2011

전력연구원에서는 "그린카용 충전스탠드 기술개발" 과제를 통하여 차량/전력계통 연계 인터페이스 및 모니터링/제어 장치 시제품을 개발 하였다. 본 과제는 지경부의 지원을 받아 수행한 정부과제로써, 2009년 5월부터 2011년 5월까지 2개년에 걸쳐 수행되었다. 본 논문에서는 "그린카용 충전스탠드 기술개발" 과제를 통해 수행한 차량/전력계통 연계 인터페이스 및 모니터링/제어장치 시제품 개발 내용을 1,2 차 년도로 각각 구분하여 소개하였으며, 차량/전력계통 연계 인터페이스 및 모니터링/제어장치 시제품을 개발에서 중요하게 도출된 것이 무엇인가를 고찰하여 보았다.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.240-244
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• 2009

In this paper, we present FloatingPad, a touch pad based device with better scrolling feature and more interaction styles than a traditional touch pad. When we interact with a real object like a picture or a book, we manipulate on the object, and we also move, rotate, and flip the object. We applied this idea into a touch pad. In FloatingPad, the touch pad is not fixed to the device. It is floating on the device; it can be slid on the device. Therefore a user can have additional degree of freedom of input by shifting and rotating the touch pad while having the traditional touch pad input. By using this technique, the interactivity of the touch pad can be augmented, and better scrolling feature can be provided by reducing clutching occurs on the position scrolling devices by using the movement of the touch pad as rate control. We implemented the prototype device and conducted a user study with three applications developed for FloatingPad.

• Korean Management Science Review
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• v.18 no.1
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• pp.79-88
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• 2001

We often feel the necessity to communicate with members involved in a project to remote discuss business activities, needs for the fast file transfer, and check the existence of members to talk with. There are some commercial applications in these problems. However, in addition to those existing functions, this study focuses especially on adding couple of functions such as automatic responding function, in which a sender of a message automatically knows if a receiver checks the message. Its application is that a project leader sends an important message and later on can check at his desk the fact that who have checked their messages. The prototype application, build in this study, will check the correctness of every sub-function, and then the interface of inter-sub-functions, finally the integrity of the entire system, so that important information will not be lost among members of a project in the real world situation.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.768-773
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• 2004

Developed in this paper a mass-spring engine to represent and manipulate deformable objects. The deformable object model is a basic technology in the ‘Tangible Space Initiative’. The mass-spring model consists of structural, shear and bending springs. Various forces like external, friction, gravity, spring, and damping forces are considered and collision with planes and spheres are treated. When a sphere collide mass-spring model, mass-spring engine calculates external force to interface mass-spring model. A prototype system is implemented in C on an MS windows machine.