A system of coordinates in which a point is located by its distance and direction (Angle) from a fixed point on a reference line (called the polar axis).
一种用点离基准线上(称极轴)固定点的距离和方向(角度)来表示点位置的坐标系统。
By correcting the rotating Angle of the image based on the flight attitude of the UAV, the direction of the aerial image can be fixed to help the operator to observe and decide correctly.
通过图像旋转的原因分析，推导出普遍适用于航拍图像纠偏处理的公式；并根据无人机飞行姿态来判断航拍图像的旋转角度进而加以纠正，使航拍图像固定指北，有助于操作员正确进行图像的观察及判定。
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