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안상근,서태규,전광길,조중휘,Ahn, Sang-Geun,Seo, Tae-Kyu,Jeon, Gwang-Gil,Cho, Joong-Hwee 대한임베디드공학회 2016 대한임베디드공학회논문지 Vol.11 No.6
In this paper, we propose an improved single view metrology (SVM) algorithm to accurately measure the height of objects. In order to accurately measure the size of objects, vanishing points have to be correctly estimated. There are two methods to estimate vanishing points. First, the user has to choose some horizontal and vertical lines in real world. Then, the user finds the cross points of the lines. Second, the user can obtain the vanishing points by using software algorithm such as [6-9]. In the former method, the user has to choose the lines manually to obtain accurate vanishing points. On the other hand, the latter method uses software algorithm to automatically obtain vanishing points. In this paper, we apply image resizing and edge sharpening as a pre-processing to the algorithm in order to improve performance. The estimated vanishing points algorithm create four vanishing point candidates: two points are horizontal candidates and the other two points are vertical candidates. However, a common image has two horizontal vanishing points and one vertical vanishing point. Thus, we eliminate a vertical vanishing point candidate by analyzing the histogram of angle distribution of vanishing point candidates. Experimental results show that the proposed algorithm outperforms conventional methods, [6] and [7]. In addition, the algorithm obtains similar performance with manual method with less than 5% of the measurement error.
안상근,김성수 한국농업정보과학회 1999 농업정보과학 Vol.1 No.1
The major findings of this study were as follows; 1) The mean score of user's satisfaction was higher than that of the theoretically expected one. 2) The mean score of user's satisfaction in information con-tent was higher than that of preview studies showed. 3) While demographic characteristics such as gender, age, level of education, cognition type and main crop were not significantly related to the degree of user's satisfaction by the factors combined together, each other showed some type of relationship to the dependent variables. Gen-der was significantly related to information relevance and system convenience, and so was the level of education and information efficiency. 4) Situational Variables such as computer ability, support level of information center, attitude, computer education were signiHcantly related to the degree of user's satisfaction. 5) Significant differ-ences were found between the user's satisfaction and performance variables such as time of system usage, fre-quency of system usage. 6) Three determinants such as support level of information center, attitude and main crop explained 42.60% of the total variance of user's satisfaction in utilizing agriculture information system. 7) Support level of information center, attitude and main crop, computer education explained 35.20% of the vari-ance for total degree of user's satisfaction in utilizing agriculture information system.
지방 관광담당 공무원의 전문성 강화를 위한 관광직제 개발
안상근,여정태,고동완 한국관광학회 2010 관광학연구 Vol.34 No.5
By testing the relationship between the tourism public officers' self-esteem, knowledge sharing, and attitude toward enhancing job speciality, this study examined the necessity of tourism organization development in the Korean local government. Data were collected from 486 tourism public officers of 42 Korean local governments. Results showed that the public officers' self-evaluation of their job speciality was positively related to their attitude toward educational development. In addition, the public officers' negative evaluation of their job speciality and their cognition of importance for their job task were positively associated with their attitude toward developing a new tourism professional position and recruiting tourism professional as tourism officers. Also, the public officers' self evaluation of their job specialty had positive relationship with their need for career development. Several practical and theoretical implications of this study were also suggested.
안상근,엄봉수,김영우,장한식,박순 에스케이텔레콤 (주) 1999 Telecommunications Review Vol.9 No.5
본 논문은 밀리미터파 대역을 이용한 광대역 가입자 망 시스템의 접속 제어 장치에 대한 설계 및 구현을 기술한 것이다. 접속 제어 장치의 핵심 부분인 접속 제어 프로토콜의 각 구성요소에 대한 성능을 분석하여 효율성이 높은 알고리즘을 찾았다. 그리고 접속 제어 프로토콜을 기지국 접속 제어 장치와 가입자 접속 제어 장치로 나누어 설계하고 구현하였다. 또한 이들 접속 제어 장치를 이용하여 광대역 무선 가입자 망 시험 시스템을 구성하고, 고속 인터넷 접속 및 MPEG2 영상 전송 응용프로그램을 위한 시스템의 구성을 보였다.