Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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Development of A New Patch-Based Stereo Matching Algorithm for Extraction of Digiral Elevation Model from Satellite Imagery

위성영상으로부터 수치표고모형 추출을 위한 새로운 정합구역의 비선형 최소자승 영상정합 알고리즘 개발

  • 김태정 (한국과학기술원 인공위성연구센터) ;
  • 이흥규 (한국과학기술원 전산학과)
  • Published : 1997.09.01
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Abstract

This paper describes the development of a stereo matching algorithm for extracting Digital Elevation Model(DEM) from satellite images. This matching algorithm is based on a non-linear least squares correlation estimation but has improved matching speed. The algorithm consists of three steps: matching execution, matching control and matching optimization. Each is described. The performance of the presented algorithm is quantitatively analyzed with experiments on matching probability, matching speed and matching convergence radius.

본 논문에서는 위성영상으로부터 수치표고모형 추출을 목적으로 하는 영상정합 알고리즘 의 개발에 관하여 기술한다. 개발된 알고리즘은 주어진 목적에 맞추어 비선형 최소자승법에 기초 한 영역정합방식에 기초하였으나 새롭게 정의된 정합구역을 이용함으로써 기존의 정합방식보다 향상된 정합 수행속도를 가진다. 이 정합 알고리즘은 정합수행 모듈, 정합조절 모듈, 정합최적화 모듈로 구성되어 있으며 각각의 기능에 대하여 기술한다. 또한 제안된 알고리즘의 성능을 정합 가능도, 수행 속도, 정합 수렴 반경 등을 이용하여 정량적으로 분석한다.

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References

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