本文阐述了立体摄影测量中直接线性变换的原理。
The direct Linear Transformation Method in stereophotogrammetry is described in this paper.
前言：目的：阐述应用立体摄影测量系统进行面部软组织三维测量的原理。
Objective: to study the application of stereophotogrammetry for three dimensional facial soft tissue morphometry.
结果：面部软组织立体摄影测量系统可以达到足够高的面部三维测量精度。
Results: The stereophotogrammetry method is precise enough for three dimensional facial soft tissue morphometry.
方法：应用数码相机和数字化立体摄影测量的方法进行面部软组织三维测量。
Methods:To establish a three dimensional soft tissue facial morphometry system with digital camera and stereophotogrammetry method.
实验也证明了本文推导的卫星立体摄影测量的理论精度估算公式是正确的，并适用于其他卫星立体摄影测量理论精度的估算。
The experiments also prove that the formula of satellite stereophotogrammetry is right, and it can be applied to estimate theoretical precision of other satellite stereophotogrammetry.
在立体摄影测量中，为测定物体的形状、大小和空间位置，不需知道摄影的内、外方位元素，由像片上的信息即可直接进行测量和计算。
In stereophotogrammetry, without knowing the exterior and interior orientation parameters, we can obtain the necessary information the shape, size and position of an object...
相机的外方位元素是摄影测量立体重建的重要参数。
Camera's exterior orientation elements are important parameters for photogrammetry stereo reconstruction.
但要生产高精度DEM，一般是采用数字摄影测量方法，借助于立体模型对DEM进行可视化编辑、修改。
However to produce high accuracy DEM, the technique of digital photogrammetrics and stereoscopic model are needed to editor DEM.
但要生产高精度DEM，一般是采用数字摄影测量方法，借助于立体模型对DEM进行可视化编辑、修改。
However to produce high accuracy DEM, the technique of digital photogrammetrics and stereoscopic model are needed to editor DEM.
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