全部

1·This paper presents a double-level registration method which includes a rough registration and a precise registration.

提出了具有各形状通用性的包括粗略配准及精确配准的双层印鉴配准方法。

2·Achievement of a signal to noise ratio adequate for precise registration is accomplished using digital signal enhancement techniques.

用数字信号增强技术可以得到足以精确定位的信号噪声比。

3·A feature matching (algorithm based) on classification is proposed, which uses the correlation of the classified images to realize a precise registration after a coarse (registration).

该方法在基于控制点的多项式粗配准的基础上，利用分类图像相关实现了基于仿射变换模型的精配准。

4·Weak vital registration systems, especially in the regions where most stillbirths occur, limit the availability of data and hamper the calculation of precise estimates.

生命登记系统存在的薄弱环节，尤其是在死产发生最高的地区，使数据的可用性受到限制，同时也阻碍了对精确估值的计算。

5·Therefore, it becomes an urgent need to look for a kind of registration algorithm which is adaptable, highly precise, fast to UAV in a complex battlefield environment for autonomous navigation.

因此，寻找一种具有适应性强、精度高、配准速度快的算法成为无人机在复杂战场环境下自主导航的迫切需要。