• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2012년도 한국컴퓨터종합학술대회논문집 Vol.39 No.1(A)
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• pp.296-298
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• 2012

최근 컴퓨터 가상화 기술이 발전됨에 따라 소프트웨어를 서비스 형태로 사용하는 소프트웨어 서비스(Software as a Service SaaS)가 많은 응용분야에서 사용되고 있다. 본 논문은 이러한 소프트웨어 서비스 기술을 이용하여 가상 3D 콘텐츠의 실시간 방송 서비스를 하고자 한다. 그러나 이러한 서비스를 위하여 기존 소프트웨어 서비스형 솔루션을 이용하면 사용자가 증가함에 따라 급속히 서버 성능이 저하되거나 여러 가지 제한사항들이 많은 문제점들을 가지고 있다. 그래서 본 논문은 성능 개선을 위하여 클라이언트 장치 및 소프트웨어 가상화하고 데이터 집중적인 작업들은 서버에서 직접 실행하고 그래픽 집중적인 작업들은 네트워크 전송을 통하여 클라이언트에서 처리되는 분할 실행 방식을 제안한다.

• International journal of advanced smart convergence
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• 제6권4호
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• pp.60-66
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• 2017

The advent of the 4th industrial revolution made the importance of software education to be emphasized, and thus, the Maker Education is attracting attention. This paper analyzes the curriculum to find contents suitable for Maker Education and proposes a workbook design using the results. The curriculum analysis data and workbook examples are expected to contribute to design elementary school curriculum for Maker Education using 3D printer. The workbook-based creative Making activities are, in addition, also expected to improve the computational thinking ability and to provide the insufficient instruction hours of SW education with an expandability.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.753-756
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• 2003

The paper presents the results of the project GISMO, which aimed on generating and interactively visualising a 3D urban landscape model of the city of Stuttgart, Germany. With respect to the desired flexibility to support walkthrough and flyover applications, a combined approach using continuous level of detail, the impostor technique and a method for generalizing 3D building models was used to speed up the visualization. To reduce the costs of the project, the data collection tools and the visualization environment was built solely with open-source software.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 1999년도 추계학술대회 논문집 - 한국공작기계학회
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• pp.579-584
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• 1999

The purpose of the present paper are not to develope machine tools of new concepts and advanced mechanisms but to introduce and apply new methods and concepts in the design procedure by using and changing the previously existing technologies. In this paper 3D modeller was proposed for designing machine tools and the design and the better manufacturability checking than 2D one so that design error was dramatically reduced. As designer may easily understand the real shape of a part and assembly object, it's easy to draw the drawings not only in a conceptual design but also in a detailed design. Also, design automation software enabled designer to consider the real important design parameters by reducing time to spend in estimating and calculating the strength of the model by the computer aided automatic calculation instead of a tedious and complex calculation by manual method and help him to easily make the decision for selecting the stocks and design the structure of part or unit of machine tools.

• Ocean Systems Engineering
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• 제5권1호
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• pp.31-40
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• 2015

Three dimensional (3D) non-linear finite element analysis of offshore pipeline is investigated in this work with the help of general purpose software Abaqus. The general algorithm for the finite element approach is introduced. The 3D seabed mesh, limited to a corridor along the pipeline, is extracted from survey data via Fledermous software. Moreover soil bearing capacity and coefficient of frictions, obtained from the field survey report, and are introduced into the finite element model through the interaction module. For a case of study, a 32inch pipeline with API 5L X65 material grade subjected to high pressure and high temperature loading is investigated in more details.

• 한국정밀공학회지
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• 제21권7호
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• pp.145-152
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• 2004

This paper proposed efficient manufacturing system using the OMM (on-machine measurement) system. The OMM system is software based 3D modeler for inspection on machine and it is interfaced tool machine with RS232C. The software is composed of two inspection modules that one is touch probe operating module and the other is laser displacement sensor operating module. The module for touch probe has need of inspection feature that extracted it from CAD data. Touch probe moves to workpiece by three operating modes as follows: manual, general and automatic mode. The operating module of laser displacement sensor is used inspection for profile and very small hole. An Advantage of this inspection method is to be able to execute on-line inspection during machining or after it. The efficiency of proposed system which can predict and definite the machining errors of each process is verified, so the developed system is applied to inspect the mold-base(cavity, core).

• 한국멀티미디어학회논문지
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• 제22권1호
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• pp.110-116
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• 2019

Virtual reality (VR) sickness can have an influential effect on the viewing quality of VR 3D contents. Particularly, watching the 3D contents on a head-mounted display (HMD) could cause some severe level of visual discomfort. Despite the importance of assessing the VR sickness, most of the recent studies have focused on unveiling the reason of inducing VR sickness. In this paper, we subjectively measure the level of VR sickness induced in the viewing of omnidirectional 3D graphics contents in HMD environment. Apart from that, we propose an objective assessment model that estimates the level of induced VR sickness by calculating the difference between head movement velocity and global camera motion velocity.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2024년도 제69차 동계학술대회논문집 32권1호
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• pp.391-393
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• 2024

본 논문에서는 수중에 존재하는 몰입형 에이전트의 움직임을 사실적으로 표현하고 수중 오브젝트들과의 상호작용에서 나타나는 외력을 시각적으로 표현할 수 있는 프레임워크를 제안한다. Unity3D와 HTC Vive를 이용해 사용자의 움직임을 추적하고 수중 물리적 요소인 부력, 저항력, 매그너스 효과를 몰입형 에이전트에 적용시켜 사용자로 하여금 수중에 작용하는 외력을 사실적으로 인지할 수 있게 한다.

• Journal of applied mathematics & informatics
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• 제17권1_2_3호
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• pp.297-305
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• 2005

In this paper, we study irregular 3D-Arrays with pyramid shapes. Some computation using Maple software and C++ language have been carried out to illustrate some novel and interesting patterns of numbers in these arrays.

• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2002년도 Proceedings
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• pp.506-508
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• 2002

As an advancement of medical imaging modalities and analyzing software with multi-function, active researches to acquire high contrast and high resolution image being done. In recently, development of medical imaging modalities like as Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) is aiming to display anatomical structure more accuracy and faster. Thus, one of the important areas in CT today is the use of CT scanner for the quantitative evaluation of 3-D reconstruction images from 2-D tomographic images. In CT system, the effective slice thickness and the quality of 3-D reconstructed image will be influenced by imaging acquisition parameters (e.g. pitch and scan mode). In diagnosis and surgical planning, the accurate distance measurements of 3-D anatomical structures play an important role and the accuracy of distance measurements will depend on the acquisition parameters such as slice thickness, pitch, and scan mode. The skull phantom was scanned with SDCT for various acquisition parameters and acquisition slice thicknesses were 3 and 5 mm, and reconstruction intervals were 1, 2, and 3 mm to each pitch. 3-D visualizations and distance measurements were performed with PC based 3-D rendering and analyzing software. Results showed that the image quality and the measurement accuracy of 3-D SDCT images are independent to the reconstruction intervals and pitches.