关键词: 曲线检测, 黄河, 主溜线, 动态规划, 随机分布背景

Abstract: An approach to detecting continuous curves from uniformly distributed random background was presented. A dynamic programming algorithm was employed to detect the most notable curve from the points according to curve continuity. And an application to detect the Yellow River's mainstream line was demonstrated with multispectral image. The mainstream points extracted by feature extraction methods were scattered on the river because of the spectral similarity of mainstream and non-mainstream. The spatial continuity between mainstream points makes this approach feasible. And experimental results indicate that this approach is valid and superior to curve fitting.

Key words: curve detection, the Yellow River, mainstream line, dynamic programming, random distributed background