山脊线与山谷线的计算机自动检测
摘 要
本文通过富里叶变换在频率域（或波数域），通过求垂直于山脊线，山谷线的方向导数，来检测山脊线和山谷线。
关键词
Auto-Recognizing Ridge lines and Ravine Linesby Computer
() Abstract
Ridge Lines and ravine linesare extracted automatically from terrain contour map, by acquiring directionalderivations vertical with ridge line and ravine line with Fourier Transform in frequency (wave domain) domain.
Keywords
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