bisector of angle

This method mainly uses contour corner, angle bisector of corner and an invariant feature point relative to angle bisector.

该方法主要利用了轮廓角点、角点的角平分线和轮廓上与角平分线相对不变的特征点来构造不变特征区域。

The arbitrary angle arbitrarily bisector is composed of an involute board ( 3), a T-shaped line ruler ( 2), three equal division angle parts of an evenly divided line plate ( 1), and an auxiliary part.

任意角任意等分仪由渐开线板（3），T形线尺（2）和等分刻度线板（1）三个等分角度的零件及辅助零件组成。

two inequalities about radius of escribed circle and bisector of angle

关于旁切圆半径和角平分线的两个不等式

Let OC be the bisector of angle AOB.

OC为AOB的角平分线.

Because of the angle bisector is robust to noise and affected small by the rotation and scale, regions detected by the method has good stability, repeatability and low time complexity.

由于角平分线的抗噪能力强，受旋转和尺度等因素的影响较小，该方法检测得到的特征区域具有较好的稳定性和可重复性，且时间复杂度低。

This paper intends to establish two inequalities involving two triangles about radius of escribed circle and bisector of angle.

建立两个涉及两个三角形的有关旁切圆半径和角平分线的不等式。