• Journal of Biosystems Engineering
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• v.39 no.4
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• pp.324-329
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• 2014

Purpose: The finite element method (FEM) is advantageous because it can save time and cost by reducing the number of samples and experiments in the effort to identify design factors. In computational problem-solving it is necessary that the exact material properties are input for achieving a reliable analysis. However, in the case of fiber boards, it is difficult to measure their cross-directional material properties because of their small thickness. In previous research studies, the Poisson's ratio was measured by analyzing ultrasonic wave velocities. Recently, the Poisson's ratio was measured using a high-speed digital camera. In this study, we measured the transverse strain of a fiber board and calculated its Poisson's ratio using a high-speed digital camera in order to apply these estimates to a FEM analysis of a fiber board, a corrugated board, and a corrugated box. Methods: Three different fiber board samples were used in a uniaxial tensile test. The longitudinal strain was measured using the Universal Testing Machine. The transverse strain was measured using an image processing method. To calculate the transverse strain, we acquired images of the fiber board before the test onset and before the fracture occurred. Acquired images were processed using the image processing program MATLAB. After the images were converted from color to binary, we calculated the width of the fiber board. Results: The calculated Poisson's ratio ranged between 0.2968-0.4425 (Machine direction, MD) and 0.1619-0.1751 (Cross machine direction, CD). Conclusions: This study demonstrates that measurement of the transverse properties of a fiber board is possible using image processing methods. Correspondingly, these processing methods could be used to measure material properties that are difficult to measure using conventional measuring methodologies that employ strain gauge extensometers.

• KIPS Transactions on Computer and Communication Systems
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• v.9 no.1
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• pp.1-8
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• 2020

The thermal image device support image to detect infrared light from the object without light. It can use not only defence-related industry, but also civilian industry. This paper presents a new thermal image processing module using common image processor. The proposed module shows 10~20% performance improvement with normal mode and 50% performance improvement with sleep mode compared with the previously thermal image module based FPGA. and it guarantees high scalability according to modular system. In addition, the proposed module improves modulation and reuse, so it expect to have reduction of development period, low development cost. various application. In addition, it expect to have satisfaction of customer requirements, development design, development period, release date of product.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.445-448
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• 2000

웹기반 우편물류 모니터링 시스템은 우편물류처리의 효율적인 인프라를 제공하는 통합 우편물류 실시간 관제시스템의 핵심 구성요소로서, 우편집중국-운송교환센터 중심의 체제에서 우편물량 정보와 우송경로 및 차량추적 정보를 실시간으로 웹을 통하여 제공한다. 이 논문에서는 웹기반 우편물류 모니터링 시스템의 세부기능과 구조 및 환경에 대하여 설명한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1068-1070
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• 2011

건물 부문의 에너지 절약방안으로 신재생에너지를 이용한 에너지 관리 시스템을 제안하고자 한다. 신재생에너지를 이용한 BEMS(Building and Enviromental Management System)를 설계하고, 이것을 구현하기 위한 Software Framework 를 설계한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.733-734
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• 2020

음성인식은 음향모델, 언어모델, 디코더 등의 기술을 이용한다. 음성인식은 하드웨어와 소프트웨어 구성이 정확하게 설계가 되어야 한다. 음성인식 프로젝트는 인프라 구성과 도입되는 음성인식 엔진도입, 인식률 그리고 시스템과의 연계가 중요하다. 하지만 음성인식 프로젝트는 솔루션 도입으로 인지하고 수행할 경우에는 많은 위험이 발생한다. 이 중 가장 문제가 되는 것이 인식률이다. 본 논문에서 음성인식 개발 프로젝트 수행에 도출되는 인식률을 개선하는 방안을 제시하겠다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.2-5
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• 2021

테스트 주도 개발(TDD: Test-Driven Development)의 가치와 원칙을 잘 이해하고 있고, TDD 를 적용한 개발 방식이 습관화되어 있으면 TDD 가 제공하는 다양한 장점들을 얻을 수 있다. 하지만 위와 같은 경우가 아니라면 TDD 를 적용하더라도 비용 대비 효과를 얻을 수 없다. 본 논문에서는 비용 대비 효과를 높일 수 있도록 TDD 를 상황에 맞게 테일러링하여 협업에 적용한 사례를 제시한다.

• Proceedings of the Korean Society of Laser Processing Conference
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• 2000.11a
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• pp.36-37
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• 2000

• Korea Information Processing Society Review
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• v.7 no.4
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• pp.18-26
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• 2000

• Proceedings of the Korean Society of Laser Processing Conference
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• 1999.05a
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• pp.37-38
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• 1999

• Proceedings of the Korean Society of Laser Processing Conference
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• 2003.05a
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• pp.9-13
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• 2003