1) Disjoint variation
不交变差
2) cross ratio invariability
交比不变
1.
By using a planar gridding target calibration points could be achieved,and the precision of these calibration points were improved through revising the distortion coefficients of lens according to the principle of cross ratio invariability.
首先利用平面网格靶标来获取标定点,同时利用交比不变原理不断修正镜头的畸变参数,从而提高了标定点的精度,然后根据这些标定点利用RAC算法对视觉传感器的内外参数进行标定。
2.
A new approach for lens distortion calibration is presented based on the cross ratio invariability of perspective projection.
利用了透视投影中的交比不变的性质,针对由CCD和投影仪组成的测量系统,在CCD已经标定的情况下,仅考虑投影仪畸变模型为一阶径向畸变的情况,只需要投影仪投射共线的投影坐标已知的4个点,利用交比不变性,建立一元二次方程就可以标定投影仪镜头的畸变参数。
3.
According the cross ratio invariability and perspective reversion,the relation among the vanishing points,the spatial beelines and their projections in image is determined,and the width of the eave can be calculated.
该方法使用数码相机倾斜影像和房屋外观的几何约束条件,根据交比不变与透视旋转原理,确立了灭点、物方直线段与影像投影直线段之间的关系,并由此计算房檐宽度。
3) Disjoint difference sets
不相交差集
5) alternating potential difference
交变电势差，交变电位差
6) indefinite total variation
不定全变差
补充资料：交变
1.谓相对的卦象相互替变。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条