1) distortion inaccuracy
变形误差;畸变不准确
2) distortion error
畸变误差
1.
In 3D visual inspection applications, there usually exists a distortion error of the CCD camera s pin hole image of ellipse center.
针对在三维视觉检测应用中 ,空间椭圆的中心经摄像机针孔成像后存在畸变误差的问题进行了研究 。
2.
For the slanting installation of optical system,the distortion error models are established and the simulations are done.
针对光学系统的倾斜安装,建立畸变误差模型并仿真分析,得出结论:光学系统光轴平行于转轴时,像点坐标不因平面镜旋转角度的不同而存在误差,变化的仅是折射光线与光轴的夹角;光轴与转轴相交时,像点坐标随光轴与转轴的夹角、焦距和平面镜初始位置法线与转轴夹角的变化而产生较大的畸变误差。
3.
The ellipse curre equation of circular image is derived based on the theory of spatial analytic geometry and rotation matrix s representation with unit quaternion then a mathematical model of the distortion error is established which relates the distortion error to the foca length of the used CCD camera,the radius as well as the position and the attitude of the inspected circle directly.
研究三维视觉检测中圆的中心经针孔摄像机成像后存在畸变误差的问题,首先基于空间解析几何理论和旋转矩阵的四元数表示法推导出像平面上投影椭圆的参数方程;然后根据参数方程建立圆中心成像畸变误差的数学模型;最后对影响畸变误差的主要因素进行分析。
3) deformed error
变形误差
1.
According to the theory of elasticity, the deformed errors of unground tool tip are calculated and the correction methods are proposed.
本文阐述了不重磨插齿刀的许多优点,用弹性力学的有关理论,计算了不重磨刀片的变形误差,并提出了切实可行的误差修正方法。
4) error of lens distortion
透镜畸变误差
5) thermal deformation error
热变形误差
1.
In the field of precision mechanism and engineering technology,the thermal deformation errors are often the dominate cause among the factors affecting the accuracy.
在精密工程技术领域,温度变化引起的热变形误差已成为影响精度的主要决定因素,针对此,提出了形体热变形系数、精确热膨胀系数、零件形体非相似性热变形、孔轴最佳热配合的概念,并简要介绍了自行研制的四维高精度热变形实验装置,最后指出了精密机械热变形误差在精密机械领域中后续研究的主要问题。
2.
Thermal deformation error of CNC machine tools generated by temperature changes will influence the accuracy of the machined workpieces.
温度变化可以产生数控机床热变形误差,从而影响加工精度。
3.
Based on analyzingthe variation of thermal deformation errorin ball screwgrinding,a FEM-based algorithmto determine the segmented compensationrate of pitchthermal errors was presented·The calculating process of this algorithmwasillustrated by an example·The method offers a wayto ensure the precision of ball screwgrinding
在分析滚珠丝杠磨削过程中热变形误差变化的基础上,提出一种基于有限元法的确定螺距热误差分段补偿量的算法,并通过具体算例说明了该方法的计算过程,为保证滚珠丝杠的磨削加工精度提供了手段。
6) distortion invariant
畸变不变
1.
The analysis of two kinds of SDF dealing with the distortion invariant of the optical correlation recognition;
两种解决光学相关识别中畸变不变问题的综合鉴别函数性能比较分析
2.
Research on distortion invariant target recognition technology in joint transform correlator
畸变不变联合变换相关器目标识别技术研究
3.
The synthetic discriminant filters (SDF) performed in spacial domain are designed and applied in a digital optical hybrid processing system to perform distortion invariant recognition.
设计了一种可在空域执行的综合鉴别滤波器 (SDF) ,并将其应用于光电混合处理、光学模式识别系统中 ,采用频域执行的SDF光学滤波和空域执行的SDF数字滤波相结合的方法 ,对输入场景中的三维目标进行实时、畸变不变识别 。
补充资料：变形
变形
胚胎或胎儿发育过程中，受到不正常的机械力压迫，使本应正常生长的机体，出现一些形态结构的改变，但由于无内在异常，预后较各类畸形为好，治疗方法及再发的风险不同，因此要与先天畸形相鉴别。
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