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전장 환경에서의 실시간 객체 추출 및 인식을 위한 고속 적응형 스네이크 기법
이준표(Jun Pyo Lee),김주영(Joo Young Kim),고정환(Jeong Hwan Ko),고경민(kyung Min Go),박영우(Young Woo Park) 제어로봇시스템학회 2011 제어로봇시스템학회 합동학술대회 논문집 Vol.1 No.2
본 논문에서는 미래 전장 환경에서 원격의 로봇 운용자로부터 부여된 임무를 수행하는 무인지상로봇(Unmanned Ground Vehicle)의 취득 영상을 대상으로 한다. 로봇이 탐지한 영상에서 실시한 다양한 객체를 분리해내는 과정과 미리 보유하고 있는 적 객체 정보를 활용한 해당 객체 식별을 위해 본 논문에서는 전장 배경에서 실시간 관심 객체 분리를 위한 능동 윤곽 모델(active contour model)인 고속 적응형 스네이크( fast adaptive snake)알고리즘과 분리된 객체의 식별을 위한 패턴 기반 부분 매칭(pattern based partial matching)기법을 제안한다. 수행된 다양한 실험을 통해 제안하는 방법이 다양한 관심 객체의 분리와 인식에 있어 효율적인 동시에 무인지상 로봇의 활용한 전장 환경 인식의 최적화된 수행이 가능함을 확인한다.
고경민,문상욱,고유봉 제주대학교 해양연구소 1996 해양자원연구소연구보고 Vol.20 No.-
The occurrence and community structure of fish larvae at the coastal area of Hamduck. Cheju Island have been studied through the hourly multi-layer sampling with a MTD net for 24 hours on August 10~11, 1989 (at just one site). The multi-layer samplings show that the number of species and individuals at the 1Om and 15m depths are more than those at the surface : the total number of species being 28, the number of species at each depths being 9, 19 and 21 at the depths of 0m, 10m and 15m, respectively. The major fish larvae are chromis notdudtotal 36,454/1000㎥ indv., 92.8%). Enneupterygius etheostomus (total 855/1000㎥ indv., 2.2%, Callionymidae sp.(total 489/1000㎥ indv.. 12%). etc At the surface and the 10m depth the number of individuals changed vividly in time and the largest number of individuals appeared at midnight. This resulted from vertical migration which was caused by the rise of fish larvae living at the 15m depth. At the surface the fish larvae descended about the sunrise and at the 10m and 15m depths they desce-nded slowly after the sunrise. The species diversity of the fish larvae at the 10m and 15m depths was higher than that at the surface and generally was higher in the nighttime than in the daytime. The variation of these values seemed to have a close relationship with the change between the species number and individuals at that time. As a result of clustering analysis at each depth, Gobiidae sp. and Callionymidae sp. occurring at about midni-ght showed close similarity(0.67) at the surface, while three groups represented 0.50 of similarity at the 10m and 15m depths.
놀래기류에 기생하는 기생성 요각류, Caligus chanos에 관한 연구
고유봉,문성하,강경표,고경민 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-
The parasitic copepod. Caligus chanos parasitized on labridae fish around MunSum. Cheju Island, have been basically studied form Sep.. 1996 to Aug.. 1997. Parasitic pattern and water temperatures have a close relationship. which is high in June and low form Feb. to Apr.. Fishes of main hosts were Pseudolabrus japonicus and Pteragogus Ragellifer. Parasitic copepods prefer the body and tail of the host to the head, and prefer adult host to juveniles or older one.