证明了在微动范围内，柔性铰链结构的刚度不随输出点的线位移的大小变化而变化，是常数，且刚度与结构的运动方向精度不成简单的线性关系。
The stiffness does not change with the linear displacement. Instead, It is a constant and is not linear with its directional accuracy providing the displacement is microscale.
把检测线性结构的方法推广，形成了八方向的断续线检测，通过加入一个参数来控制所检测线性结构的多少。
The method of detecting lineaments is extended to 8 -direction detection of dotted lines, the number of lineaments to be detected can be controlled by an additive parameter.
第二步引入公路结构特征的先验信息，对提取的线基元进行组织，获得比较宏观的线性结构。
It can guarantee the detection accuracy. In the second step, we introduce the prior knowledge about the road structure to group the line element into macroscopical structure.
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