• 제목/요약/키워드: a medium of image

검색결과 593건 처리시간 0.032초

색상 검출 알고리즘을 활용한 물고기로봇의 위치인식과 군집 유영제어 (Position Detection and Gathering Swimming Control of Fish Robot Using Color Detection Algorithm)

  • 무하마드 아크바르;신규재
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2016년도 추계학술발표대회
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    • pp.510-513
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    • 2016
  • Detecting of the object in image processing is substantial but it depends on the object itself and the environment. An object can be detected either by its shape or color. Color is an essential for pattern recognition and computer vision. It is an attractive feature because of its simplicity and its robustness to scale changes and to detect the positions of the object. Generally, color of an object depends on its characteristics of the perceiving eye and brain. Physically, objects can be said to have color because of the light leaving their surfaces. Here, we conducted experiment in the aquarium fish tank. Different color of fish robots are mimic the natural swim of fish. Unfortunately, in the underwater medium, the colors are modified by attenuation and difficult to identify the color for moving objects. We consider the fish motion as a moving object and coordinates are found at every instinct of the aquarium to detect the position of the fish robot using OpenCV color detection. In this paper, we proposed to identify the position of the fish robot by their color and use the position data to control the fish robot gathering in one point in the fish tank through serial communication using RF module. It was verified by the performance test of detecting the position of the fish robot.

Measurement of Effective Refractive Index of Anodic Aluminum Oxide Using a Prism Coupler

  • Gong, Su-Hyun;Cho, Y.H.;Stolz, Arnaud;Gokarna, Anisha;Dogheche, Elhadj;Ryu, Sang-Wan
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2010년도 제39회 하계학술대회 초록집
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    • pp.195-195
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    • 2010
  • In recent years, Anodic aluminum oxide(AAO) has become popular and attractive materials. It can be easily fabricated and self-organized pore structures. It has been widely used as a biosensor membrane, photonic crystal for optical circuit and template for nanotube growth etc. In previous papers, the theory was developed that AAO shows anisotropic optical properties, since it has anisotropic structure with numerous cylindrical pores. It gives rise to the anisotropy of the refractive index called as birefringence. It can be used as conventional polarizing elements with high efficiency and low cost. Therefore, we would like to compare the theory and experimental results in this study. One method which can measure effective refractive index of thin film is the prism coupling technique. It can give accurate results fast and simply. Furthermore, we can also measure separately the refractive index with different polarization using polarization of the laser (TE mode and TM mode). We calculated the effective refractive index with effective medium approximations (EMAs) by pore size in the SEM image. EMAs are physical models that describe the macroscopic system as the homogeneous and typical method of all mean field theories.

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카메라 트래핑을 이용한 육상포유류 모니터링 효율성 평가 (Monitoring Efficiency Evaluation of Camera Trapping in Terrestrial Mammals)

  • 정철운;차진열;김영채;김성철;권구희;이화진
    • 한국환경복원기술학회지
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    • 제17권3호
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    • pp.65-74
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    • 2014
  • The aim of this study was to evaluate the monitoring efficiency of camera trapping in wild animals and to determine ways to increase its utilization. Nineteen sensor cameras were installed in Sobaeksan National Park from October 2012 to September 2013. During the study period, a total of 1045 terrestrial mammal photos were secured and 15 species habitats were identified. Shooting frequency was higher for medium and large mammals, especially full images of carnivores accounted for approximately 83%. A comparison of track surveys revealed that camera trapping was highly efficient and helped in capturing real image of species. The supply of lure and bait stimulates the sense of smell in carnivores, which further enhances the capturing of images by camera trapping. The results of this study provide data on the ecological characteristics of mammals, which can aid in determining habitat use by these animals, and thereby facilitate prevention of crop damage by wildlife.

증기양생 콘크리트 표면상태에 대한 박리제의 영향 사례연구 (A Case Study for Influence of Form-oil on Surface Condition of Steam-cured Concrete)

  • 한상훈;윤주용;홍기남;최재완;임준우
    • 한국안전학회지
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    • 제28권1호
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    • pp.52-56
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    • 2013
  • The purpose of this study is to evaluate the influence of form-oil on steam-cured concrete surface condition. Based, viscosity(high, medium, low) and flash point($26^{\circ}C$, $70^{\circ}C$) of form oil were considered as test variables. The digital image process method was applied for the extraction of air-void area from concrete surface. Test result showed that oil-based form oil reduced air-void by approximately 46% compared to water-based form oil, and the higher the viscosity was, the smaller air-void rate was. In addition, it was conformed that flash point of form oil had a considerable influence on the surface condition of steam-cured concrete.

중소기업의 품질경영시스템 인증성과에 관한 실증연구 (Certification of Quality Management System and Firm Performance: An Empirical Approach based on the Experiences of Small and Medium Enterprises (SMEs) in Korea)

  • 김인호;최걸성;구태용
    • 산업경영시스템학회지
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    • 제30권1호
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    • pp.15-24
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    • 2007
  • This paper attempts to identify empirically whether the certification of Quality Management System affects positively to firm performance using the sample sets of 200 SMEs in Korea who have adopted ISO 9000 majoring in the domestic markets as well as the overseas markets. The empirical study has been done on the assumptions and the hypothesis that the certification itself can conceptually and practically be considered an effective tool to improve the level of standardization of quality management system, and it would result in higher productivity and good corporate image by enabling firms to strengthen up their capabilities to achieve competitive advantage. The empirical findings show that the ISO 9000 has positively contributed to not only obtaining competitive advantage but also bringing about a superior firm performance as it would be, making sure that the certification itself would be used as a powerful tool for good management. This study also pinpoints that the success/failure in introducing & adopting the certification depends highly upon the managers' interests and concerns, especially the CEO's.

CONSTRUCTION EDUCATIONAL GAME FOR K-12

  • Youjin Jang;Moonseo Park;Hyun-Soo Lee;Chanhyuk Park
    • 국제학술발표논문집
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    • The 5th International Conference on Construction Engineering and Project Management
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    • pp.546-552
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    • 2013
  • The future competitiveness of construction industry is dependent on K-12 students. However, unfavorable images of construction industry have negative influence on K-12 students' decision-making of their career. This negative image makes them not want to find out what actually happens in construction industry. Consequently, it is important to give K-12 students the opportunity to know what construction employees actually do in their job. Studies show that K-12 students who encounter the job early-on are more likely to choose it as their career. In this context, this paper proposes construction educational game in which it can serve as a medium for capturing K-12 students' interest in Construction Management (CM). Based on the literature reviews, challenges of construction educational game for K-12 students which are edutainment, hands-on experience and social interaction, are derived. To address these issues, conceptual model and scenario are designed. Based on designed scenario, prototype of Simulation based Construction Game in Virtual World (SCGVW) is developed in Second Life (SL) and applicability test to K-12 students are implemented. This paper concludes with a discussion of the lessons learned and the future development steps of the construction educational game for K-12 students.

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부산시 하천의 아이덴티티 구성요소로서 도시 환경색채 연구 (A Study on Urban Environmental Color as Identity Component of Busan City River)

  • 최지혜;김치용
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2009년도 춘계학술대회
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    • pp.120-123
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    • 2009
  • 환경의 중요성이 강조되고 하천의 복귀를 논의 하는 등 현 시대의 발전에 물을 중심으로 발전되어온 우리의 문화에서 물이라는 매개체가 주는 역할을 강조하면서 친수공간의 발전이 사람들의 심리에 주는 안정감과 청량감을 준다는 관점에서 도심 속 하천 중요성을 인식한다. 이에 본 논문에서는 서로 다른 경관대상에 따른 유형분석과 색채경관의 자료를 수집하여 색채경관 이미지를 평가하여 색채관리의 필요성과 이를 근거로 구체적인 경관형성의 계획을 제시함으로서 사례지구의 기본 틀로 활용되길 기대한다.

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스마트팩토리 도입시 영향을 미치는 요인에 관한 연구 : 국내 중소기업을 중심으로 (A Study on Factors Influencing the Introduction of Smart Factory : Focusing on Small and Medium-sized Enterprises in Korea)

  • 김한주;허훈;강재원;부제만
    • 산업경영시스템학회지
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    • 제42권3호
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    • pp.252-261
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    • 2019
  • In this study, we analyzed the factors affecting the introduction of Smart Factory by domestic SMEs through AHP analysis and tried to provide implications for the introduction of Smart Factory. It was confirmed that the manufacturing and introduction group, the non-manufacturing introduction group, and the already introduced group had the highest weight in the cost reduction in the first hierarchy standard. At this time, it can be seen that the weight for cost reduction is relatively high in the manufacturing introduction group and the introduction group, and the weight for the productivity improvement is relatively high in the non-manufacturing introduction group. It can also be seen that the portion of marketing enhancement does not have a significant impact on smart factory choices. It was confirmed that image enhancement is the highest in the manufacturing introduction group and the non-manufacturing introduction group in the first hierarchy standard, and the marketing has the highest weight in the introduction group. In the two - tiered standard, customer - friendly and proper inventory maintenance weights were relatively high in all the introduced groups, except for the high rankings.

중소/중견 기업을 위한 OCR기반 설비 모니터링 시스템의 설계 및 구현 (Design and Implementation of OCR-based Machine Monitoring System for Small and Medium-Sized Enterprise (SMEs))

  • 성정환;정종필
    • 한국인터넷방송통신학회논문지
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    • 제21권3호
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    • pp.73-79
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    • 2021
  • 4차 산업 혁명의 물결 속에서 스마트팩토리는 많은 공장에서 요구되고 있다. 하지만, 중소/중견 기업에서는 여전히 노후화된 설비를 보유하고 있어 스마트팩토리의 기초가 되는 데이터 수집 단계에서 어려움을 겪고 있다. 이 연구는 기존 설비의 개조 필요 없이, 설비 제어판의 이미지로부터 데이터를 추출하는 오픈 소스 기반의 기술을 활용 함으로써, 저비용으로 설비 모니터링하는 방법을 제안한다. 제안된 방법은 프로토타핑을 통해 자동차 부품 제조 공장의 단조 설비를 대상으로 테스트하고 평가되었다. 평가 결과 저가형 설비 모니터링이 가능함을 확인하였으며, 중소/중견 기업이 스마트팩토리를 구축하는 데 도움을 줄 것이다.

컴퓨터 음악프로그램을 통한 창의적 활동 중심의 교수.학습 방안 (A Study on the Musical Instruction-Learning Method Focusing on Creative Activities using Computer-Based Music Programmes)

  • 조정은
    • 컴퓨터교육학회논문지
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    • 제14권4호
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    • pp.1-10
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    • 2011
  • 21세기를 주도할 자율적이고 창의적인 한국인 육성은 개정된 교육과정에서 강조하는 기본방향이다. 중등음악교육에서는 학습자의 시각과 청각을 함께 자극하고 창의적으로 활용할 수 있는 컴퓨터 음악프로그램이 교수 학습에 효과적인 매체라 할 수 있다. 본 연구에서는 컴퓨터 음악프로그램의 기능을 살펴보고, 그것을 음악수업에서 창의적인 학습활동으로 연계할 수 있는 방안을 모색하였다. 또한 음악활동 영역별로 그 적용방안을 제시하고자 한다. 이를 위하여 사보프로그램인 Finale 2010과 이미지 및 동영상 편집도구로 Window MovieMaker, 그리고 소리편집의 Goldwave를 사용을 중심으로 학생들의 창의적인 학습활동 방안을 제시하였다.

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