A Study on System for measuring morphometric characteristis of fish using morphological image processing

형태학적 영상처리를 이용한 어체 측정 시스템 개발에 관한 연구

  • Lee, Dong-Gil (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Yang, Yong-Su (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Kim, SeongHun (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Choi, Jung-Hwa (Fisheries Resources Management Division, National Fisheries Research & Development Institute) ;
  • Kang, Jun-Gu (JNJ Technology) ;
  • Kim, Hee-Je (Department of Electrical Engineering, Pusan National University)
  • 이동길 (국립수산과학원 시스템공학과) ;
  • 양용수 (국립수산과학원 시스템공학과) ;
  • 김성훈 (국립수산과학원 시스템공학과) ;
  • 최정화 (국립수산과학원 자원관리과) ;
  • 강준구 (제이앤제이테크놀로지) ;
  • 김희제 (부산대학교 전자전기공학과)
  • Received : 2012.09.20
  • Accepted : 2012.11.09
  • Published : 2012.11.30


To manage, sort, and grade fishery resources, it is necessary to measure their morphometric characteristics. This labor-intensive task involves performing repetitive operations on land and on a research vessel. To reduce the amount of labor required, a vision-based automatic measurement system (VAMS) for the measurement of morphometric characteristics of flatfish, such as total length (TL), body width (BW), and body height (BH), has been developed as part of a database management system for fishery resources management. This system can also measure the mass (M) of flatfish. In the present study, we describe a morphological image processing algorithm for the measurement of certain characteristics of flatfish. This algorithm, which involves preprocessing, edge pattern matching, and edge point detection, is effective in cases where the flatfish being measured has a deformed tail and is randomly oriented. The satisfactory performance of the proposed algorithm is also demonstrated by means of experiments involving the measurement of the BW, TL and BH of a flatfish when it is straightened (BW : 117mm, TL : 329mm, BH : 24.5mm), when its tail is deformed, and when it is randomly oriented.


Supported by : 국립수산과학원


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