• International Journal of Advanced Culture Technology
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• 제9권4호
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• pp.295-301
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• 2021

Digital media technology is gradually developing with the development of convergence quaternary industrial technology and mobile devices. The combination of deep learning and augmented reality can provide more convenient and lively services through the interaction of 3D virtual images with the real world. We combine deep learning-based pose prediction with augmented reality technology. We predict the eight vertices of the bounding box of the object in the image. Using the predicted eight vertices(x,y), eight vertices(x,y,z) of 3D mesh, and the intrinsic parameter of the smartphone camera, we compute the external parameters of the camera through the PnP algorithm. We calculate the distance to the object and the degree of rotation of the object using the external parameter and apply to AR content. Our method provides services in a web environment, making it highly accessible to users and easy to maintain the system. As we provide augmented reality services using consumers' smartphone cameras, we can apply them to various business fields.

• 인터넷정보학회논문지
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• 제4권1호
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• pp.27-37
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• 2003

본 논문에서는 가상공간과 데이터베이스 처리를 필요로 하는 웹 서비스 생성 시스템 개발을 기술한다. 본 시스템의 주요 특성은 가상공간의 변화와, 가상공간내 객체들의 속성을 포함하는 데이터베이스 내용이 상호 연동되며, 일반사용자가 가상공간상의 각 객체의 속성을 직접 변화시킬 수 있도록 VRML 노드 정보를 시각화해서 객체 정보를 화면상에서 직접 수정할 수 있는 인터페이스를 제공하는 점이다. VRML 파일의 노드들은 트리(Tree)구조로 시각화되었으며 이 인터페이스를 통해 가상공간상의 각 객체에 접근할 수 있도록 구성하였다. 변화된 속성은 데이터베이스에 자동 기록되며, 이에 따라 가상공간을 사용하는 웹 서비스의 내용을 자동 변동시키는 구조로 되어있다. 또한, 일반 사진을 이용하여 텍스춰매핑을 실행시킬 때 각 장면 구성을 위해 사진 3장을 이용한 가중치 적용 보간 방법을 정의한다.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 추계학술대회논문집 - 한국공작기계학회
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• pp.3-7
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• 2000

The authors have realized reconstruction of 3D shape using contacting method with pins and TCP/IP communication. In this paper, the working principal of the mechanism is proposed and tested. A special sensor system is designed as 148 matrix form to measure 3D shape. When contact occurs between pin and the plate of the sensor matrix, the position information of pins is sent to computer and raised height data of the pin is obtained by counter which accumlates encoder signal. So, all datum which contain 3-dimensional coordinate, is transferred using TCP/IP communication. Finally, 3D shape is reconstructured by Web browser of remote computer. The measuring result shows that the proposed mechanism is reliable and promising as a remote measuring device through Internet.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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• pp.1611-1614
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• 2005

In this paper, a new multi-view 3D video communication system for real-time Reality teleconferencing application is proposed by usin gthe IEEE 1394 digital cameras, Intel Xeon server computer system and Microsoft's DirectShow programming library and its performance is analyzed in terms of image-grabbing frame rate and number of views. The captured two-view image data is compressed by extraction of disparity data between them and transmitted to another client system through the communication network, in which multi-view could be synthesized with this received 2-view data using the intermediate view reconstruction technique and displayed on the multi-view 3D display system. From some experimental results, it is found that the proposed system can display 16-view 3D images with a gray of 8bits and a frame rate of 15fps.

• 한국실내디자인학회논문집
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• 제16권2호
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• pp.314-321
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• 2007

The statistical method of human sensibility ergonomics is widely used for analyzing interior design because it has standard processes and it can help to get quantifiable results. However applying this method demands repeated intense work and great time and effort is required. In this study, a tool applying Web and virtual reality techniques for statistical human sensibility ergonomic interior design analysis is proposed and the key parts of the tool including database and interface are implemented. The database contains the sensibility adjective table and the physical interior design factor table for analyzing the relationship between human sense and physical design factors. Interface of the tool is implemented using Web technologies, so testers can evaluate interior design samples via standard Web browsers. The 3D control which is an important component of the interface is also implemented. Employing the suggested tool can reduce effort and time for evaluating human sense in Interior design field.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1993년도 가을 학술발표회 논문집
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• pp.184-189
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• 1993

This is an experimental investigation the shear behavior of reinforced concrete with stirrup of which stress ranges 0.0㎏/㎠ to 7.0㎏/㎠. Five rectangular beams which concrete strengths are 287㎏/㎠ and 380㎏/㎠, a/d=3, and main steel ratio equal to 1.96% was tested. Those were designed to fail in shear. The shear cracking load and failure load were measured and compared with ACI's equation and Zutty's proposed equation. The results are following : ACI equation and Zutty's equation are consertive. As the concrete compressive strength increased, reserved shear strength of beams with minimum web reinforcement decreases. According to increase of web reinforcement , the rate of increases of shear strength is decreased. The failure modes of specimen with minimum web reinforcement are shear compression failure which is reached after diagonal shear cracking.

• 산업경영시스템학회지
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• 제29권3호
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• pp.79-86
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• 2006

Especially, MTO(Make-To-Order) companies take collaborative approaches with their partner companies to make low-price products and/or technologically low intensive products. The collaborative approach to manufacturing requires collaboration with partner companies for inventory review, production plan, and manufacturing to fulfill customer's orders. However, frequent changes of partnerships binder partner companies from sharing production information in effective ways since their information systems have different data architectures and platforms. Therefore, it is required flexible and standardized system integration approach fir effective information sharing. This research studies current status and problems of collaborative production system, proposes an architecture for collaborative production systems based on Web Services which is a standard information technology, and discusses expected effects and the vision of Web Services.

• 한국IT서비스학회지
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• 제3권1호
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• pp.89-99
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• 2004

Mobile service, which is related to all stages of supply chain, can enhance the efficiency of perception and response of the participants. The advantage of mobile service is ubiquity, speed, traceability, positioning, personalization and safety. The purpose of this paper is to propose an overall framework utilizing mobile service in SCM. In the areas of inventory management, remote diagnostics, communications with field workers, and order fulfillment, customer-centric mobile supply web is proposed and implemented for the wireless warehousing and replenishment system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.41-43
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• 2001

This paper presents a Web-based educational tool for Power System Engineering, especially for power engineers. This tool has Web-oriented educational courses for power system education. The Web-based learning has become more popular year by year in the various fields[1-2]. The proposed educational tool provides some courses such as power system introduction Course, KEPCO's system introduction Course, Power system devices Course, Power Flow Course, OPF Course, ELD Course, Stability Analysis Course, Fault analysis Course, Voltage & Frequency control Course, and power system planning & operation Course. Finally, it will be scheduled to install for the education tool of the power system engineering for KEPS[3].

• 한국문헌정보학회지
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• 제34권3호
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• pp.133-156
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• 2000

본 연구는 국내 Web 정보서비스 측정기준과 평가지표 개발을 위한 일차 연구로, 국내 Web 정보검색 서비스를 제공하는 사이트를 대상으로 기존의 온라인 검색환경의 측정기준과 평가지표의 적용문제를 사례연구로 분석한 것이다. 실제 검색실험을 통해 평가내역을 조사하고 기존방식과 기준이 Web 정보 서비스 평가적용에 어떤 문제점을 갖고 있는지를 구체적으로 조사함으로써, 현재 디지털도서관의 정보서비스의 주요 문제로 제기되고 있는 Internet 정보자원의 품질과 연계 지어 국내 Web 정보서비스 평가를 위한 지표개발(이차연구)에 필요한 기본적인 자료로 활용함을 목적으로 한다. 최종 이용자인 수요자 관점에서 디지털도서관 QIS의 조건으로 정보 자체보다 더욱 강조되고 있는 정보 서비스의 품질을, 탐색 서비스를 지원하는 국내 환경공학 Web 사이트만을 엄선하여 진단하고 최종 이용자들을 상대로 설문 조사하였다.