基于普通数码影像快速绘制等高线方法研究

The Method of Fast Draw Contour Based on the General Digital Image

利用普通数码相机采集立体像对,通过直接线性变换(DLT)方法,对所采集的立体像对进行分析、解求,进而求取立体像对内的地表三维空间坐标,利用求得的地表三维空间坐标组建三角网(TIN),从而在TIN的基础之上绘制等高线。

Adoption Direct Linear Transform （DLT） method analyses and resolves stereo pair which gathered by general digital eamera, accordingly obtains the surface three - dimensional space coordinate. Then the Triangulated Irregular Net （TIN） can be created by the surface three - dimensional space coordinates. Consequently the contour can be drawled up based on the TIN.