非线性迭代 meaning in Chinese
nonlinear iteration
Examples
- Nonlinear nodal expansion and finite difference schemes for the neutron diffusion equation
节块展开与有限差分非线性迭代法 - A nonlinear iterative method for solving systems of nonlinear multivariable equations
解多元非线性方程组的一个非线性迭代法 - At the present time , the research in surface panel method is on the way from low - order to high - order for enhance the calculational precision and accelerate the non - linearity iterative convergence
为了提高计算精度，加速非线性迭代的收敛性，面元法正沿着由低阶向高阶的方向发展。 - In the application of mini - micro - robot visual perception , there is a need for fish - eye lenses for capturing wide field of view for navigation . though fish - eye lenses provide a wide field of view ( 180 ) , they introduce significant distortion in images and the acquired images are quite warped , which makes conventional camera calibration algorithms no longer work well . this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system . the accurate calibration model is formulated with radial distortion , decentering distortion and thin prism distortion based on the fisheye deformation model . using fish - eye and non - linear camera model , the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery
鱼眼镜头成像立体视觉系统在微小型机器人视觉导航和近距离大视场物体识别与定位中有着广泛的应用.尽管鱼眼镜头摄像机具有很大的视场角(接近180 ) ，但同时也引入严重的图像变形，常规的摄像机标定方法无法使用.该文提出一种标定鱼眼镜头摄像机立体视觉系统的方法.在鱼眼镜头变形模型的基础上，通过考虑鱼眼镜头成像的径向变形、偏心变形和薄棱镜变形，建立了鱼眼镜头成像的精确成像模型,然后，利用非线性迭代算法，精确求解摄像机外部参数、内部参数.实验表明，使用该方法得到的立体视觉系统参数满足精确恢复大场景稠密深度图的要求 - It is shown that a system of linear equations is resolved to obtain the rotational parameters by using of seven couple of conic curves in image sequences when the motion of a rigid object is pure rotational . when the motion of a rigid object is pure translation , a system of non - linear equations is resolved using iterative method , or using the method for resolving quartic equation . the translation parameters with a scale factor may be determined and the translation direction can be obtained
研究结果表明，在纯旋转运动分析中，最少利用图像序列中7条对应二次曲线，可以线性地求解刚体旋转运动参数；在纯平移运动分析中，只需利用图像序列中1条对应二次曲线就可以求解刚体相对平移运动参数(即平移方向) ，分别用非线性迭代法和一元四次方程解法求解了刚体相对平移运动参数(即平移方向) 。