摘要
在进行海底地质地层调查勘探时,通常根据测量仪器采集的数据生成地层断面轮廓线,按照这些连续的轮廓线的分布特征及其灰底不同来粗略地分辨地层的性质。然而这些单一的剖面轮廓还不足以直观地反映该地域整体地层的三维形状分布信息。根据地质地层分布的特性,通过对相邻断层轮廓线点集的匹配和三角剖分算法来进行地层分布的三维重构,并利用基于三角域的Bernstein-Bezier曲面构造三次光滑曲面,从而模拟三维的地层分布效果图。
The continuous contours of strata section normally come from datum collected by kinds of measure machines. They usually describe some stratum properties roughly according their distribution characters and differences of grey base on surveying the benthal geological status. But these single section contours can not sufficiently reflect intuitional 3D shape distribution information of the whole stratum field be measured. In the article it created 3D reconstruction of strata distribution according to the characteristics of geological strata distribution and through control vertex matching theory of contour set on adjacent sections and triangulation algorithm for contours, and drew up smooth cubic surface of stratum with Bernstein-Bezier surface method to simulate 3D stratum distribution effect drawings.
出处
《计算机应用与软件》
CSCD
2009年第3期205-207,共3页
Computer Applications and Software
关键词
三维重构
地层
三角剖分
轮廓线
B-B曲面
3D reconstruction Stratum Triangulation Contour Bernstein-Bezier surface
