- ORTHOGONAL DISTANCE FITTING OF ELLIPSES
- ORTHOGONAL DISTANCE FITTING OF ELLIPSES
- ㆍ 저자명
- Kim. Ik-Sung
- ㆍ 간행물명
- Communications of the Korean Mathematical Society
- ㆍ 권/호정보
- 2002년|17권 1호|pp.121-142 (22 pages)
- ㆍ 발행정보
- 대한수학회
- ㆍ 파일정보
- 정기간행물|ENG| PDF텍스트
- ㆍ 주제분야
- 기타
We are interested in the curve fitting problems in such a way that the sum of the squares of the orthogonal distances to the given data points is minimized. Especially, the fitting an ellipse to the given data points is a problem that arises in many application areas, e.g. computer graphics, coordinate metrology, etc. In [1] the problem of fitting ellipses was considered and numerically solved with general purpose methods. In this paper we present another new ellipse fitting algorithm. Our algorithm if mainly based on the steepest descent procedure with the view of ensuring the convergence of the corresponding quadratic function Q(u) to a local minimum. Numerical examples are given.