Correction of Nodule Abundance Using Image Analysis Technique on Manganese Nodule Deposits

영상처리 기법에 의한 심해저 망간단괴의 부존밀도 보정

  • Park, Chan-Young (Deep Seabed Exploration Programme, Korea Ocean Reserch & Development Institute) ;
  • Chon, Hyo-Taek (Department of Mineral and Petroleum Engineering, Seoul National University) ;
  • Kang, Jung-Keuk (Deep Seabed Exploration Programme, Korea Ocean Reserch & Development Institute)
  • 박찬영 (한국해양연구소 심해저탐사사업단) ;
  • 전효택 (서울대학교 공과대학 자원공학과) ;
  • 강정극 (한국해양연구소 심해저탐사사업단)
  • Received : 1996.09.07
  • Published : 1996.08.30

Abstract

The purpose of this study is to correct the nodule abundance of FFG (Free Fall Grab) sampler on KODOS (Korea Deep Ocean Study) area in North-East Pacific Ocean. The image analysis of sea-floor photography was carried out for correcting the abundance of nodules, and the image enhancement techniques and edge detection method were used to discriminate between nodules and sediments. The trace of nodules on sediments was detected to reduce the fractionation effect in calculating the coverage of nodules. The three methods, using the coverage of nodules, using the volume density, and using corrected volume density, were utilized for the correction of the nodule abundance. The method using the coverage of nodules was more convenient and available for the correction of nodule abundance than the other two methods. The method using the corrected volume density had the highest confidence level compared with the other methods.

Keywords