ill-posed problem
英 [ɪl pəʊzd ˈprɒbləm]
美 [ɪl poʊzd ˈprɑːbləm]
网络 病态问题; 不适定问题; 不适定性问题
双语例句
- To solve the ill-posed problem in electrical capacitance tomography ( ECT), a new image reconstruction algorithm based on total variation ( TV) regularization is proposed.
针对由少量角度的投影数据重建CT图像的问题，提出了一种改进的基于图像总变差最小的迭代重建算法。 - The inverse heat conduction problem ( IHCP) is severely ill-posed problem in the sense that the solution ( if it exists) does not depend continuously on the data.
逆热传导问题（IHCP）是严重不适定问题，即问题的解（如果存在）不连续依赖于数据。 - Error estimates of finite dimensional regularized method for solving ill-posed problem
有限维正则化方法求解不适定问题的误差估计 - Identification of dynamic axle loads on bridges is an inverse problem of structural mechanics, and a notable feature of which is the presence of ill-posed problem.
移动荷载识别属于结构动力学逆问题的范畴，而逆问题的一个显著特点就是存在不适定性。 - Sensitivity and Ill-posed Problem of Open EIT
开放式电阻抗成像的灵敏度和病态性问题 - With normalization of the digital edge set, the ill-posed problem is effectively regularized.
通过对边缘点集的归一化运算，有效地正则化了提取椭圆的边缘点集的病态性； - The reconstruction of optical tomography from measurement data is an ill-posed problem.
光学层析成像是一个病态重建问题，为克服重建过程的病态性，提出将多准则优化理论引入到图像重建中。 - In this paper, two regularization methods are used to solve this ill-posed problem: Tikhonov regularization and two steps method.
本文使用两种正则化方法求解这一病态问题：Tikhonov正则化和两步解法。 - A new algorithm of deconvolution via window convolution operation is proposed, and the algorithm can solve the ill-posed problem occurring in deconvolution via circular convolution.
本文提出了一种用窗口卷积实现反卷积的新算法，这种算法解决了用圆周卷积计算反卷积时出现的病态问题。 - The extrapolation of one-dimensional band-limited signal, as a typical ill-posed problem, has a variety of interesting applications in Fourier analysis, spectral estimation and image restoration.
一维带限信号的重构与外推作为一个典型的不适定问题，在傅立叶分析、谱估计和图像恢复中有着广泛的应用，对此已有一些学者做了大量的研究工作。 - As an Inverse Problem of Mathematical Physics, how to solve it involves Partial Differential Equations, Finite Element Method, Numerical Analysis, Matrix Theory, Nonlinear Equations, Error Analysis, Ill-posed Problem, etc.
EIT技术的理论基础实质上是数学物理的反问题，如何求解EIT重建方程涉及到偏微分方程、有限元理论、数值计算、矩阵论、非线性方程组求解、病态问题、误差分析等领域。 - This paper introduces the application background and basic methods of blind image restoration briefly, analyzes the degradation model of image and the ill-posed problem during restoration in detail.
本文简要介绍了盲目图像复原的应用背景及基本方法，详细分析了图像退化模型及图像复原过程中的病态问题。 - Solution of one ill-posed problem
一个不适定问题的求解 - On one hand, from the technique of constrained least squares and limited energy of additive noise, an effective restored approach by adopting regularization method to overcoming ill-posed problem, solving an equation with a single variable, and using space iterative algorithm is proposed;
一是从约束最小二乘出发，在加性噪声能量有界的前提下，采用正则化方法来克服病态问题，通过解一个单变量方程，并利用空域迭代运算实现了一种有效的图像复原； - By introducing the prior information constraint in the objective function, we can solve the ill-posed problem and band-limited problem for the impedance inversion.
通过在目标函数中增加先验知识约束，我们可以解决波阻抗反演的病态问题及带限问题。 - Blind image restoration has a strong background of mathematics, including estimation theory, ill-posed problem solution method, linear algebra, stochastic process, numerical analysis, and so on.
图像盲复原具有很强的数学背景，同估计理论、病态逆问题求解理论、线性代数、随机过程和数值分析等都有着密切的联系。 - Digital image inpainting has been a very important basic research subject, it belongs to an ill-posed problem from mathematical theory.
数字图像修复一直是一个很重要的基础性研究课题，从数学理论上讲，它属于病态问题。 - Hence algorithm for ill-posed problem becomes a new research direction.
因而，不适定问题的求解算法成为广大数学工作者、自然科学工作者及工程技术人员努力开拓的一个崭新的研究方向。 - The ill-posed problem can be divided into linear ill-posed problems and nonlinear ill-posed problems.
首先，针对如何建立有效的正则化方法来求解不适定问题，可将不适定问题分为线性不适定问题和非线性不适定问题。 - We also construct the rotary motion model and do a detailed mathematical analysis on the ill-posed problem of blur kernel.
根据成像原理建立了可信的旋转运动模糊模型，在频域对旋转运动退化模型模糊核的病态性做了详细透彻的数学分析和推导。 - Discussed ill-posed problem of the first calculator function in wave-field transform functions from one side of the mathematics.
从数学角度讨论了波场变换式的第一类算子方程的不适定性。 - The key is introduced Tikhonov regularization term when solving integral equation of formulation, and the ill-posed problem is transferred to well-posed problem.
主要思想是在对其转化的积分方程求解过程中，引入Tikhonov正则化项，将不适定问题转化为适定问题。 - The regularization methods can reduce the illness of the ill-posed problem and improve the stability of the solution by adding constraints to the solution domain.
该方法通过对解空间加上一定的限制以降低不适定性问题的病态性、提高解的稳定性。 - Stereo matching is an ill-posed problem with the influence of distortions and occulsions.
在实际应用中，因为变形，扭曲，遮掩等情况的影响，立体匹配是较难彻底解决的一个病态问题。 - Through dictionary learning method based on sparse representation, we had better access to get the single image characteristic information, and avoided to solve the ill-posed problem.
基于稀疏表示的字典学习方法，更好地获取了单幅图像特征信息，避免了对不适定问题的求解。 - The Tikhonov regularization of punishment is secondary, and its function is weaken the original ill-posed problem of the oscillation of the approximate solution, which has some of the approximate solution smoothness, and thereby giving the approximate solution of the stable.
传统的Tikhonov正则化方法罚项是二次的，其作用是减弱原不适定问题近似解的震荡性，使得近似解具有一定的光滑性，从而给出稳定的近似解。 - Furthermore, the artificial fish algorithm is adopted to solve the inversion problem and the ill-posed problem, because it can tackle the continuity and stability of the problem by the numerical calculation. The typical mathematical function is adopted to verify the feasibility of the algorithm.
针对反演问题求解和不适定性问题，采用人工鱼群算法，从数值计算角度解决解的连续性和稳定性的问题，通过典型数学函数分析验证算法的可行性。 - Medical image segmentation is a classical ill-posed problem in the field of pattern recognition.
医学图像分割是模式识别领域的经典不适定（ill-posed）问题，至今还没有得到较好的解决。 - In the first section, we introduce the concept of ill-posed problem and its relation with inverse problem.
我们在第一节中介绍不适定问题的特点及其与反问题的关系。 - Aimed at the inverse problem model of temperature field reconstruction, the algebraic reconstruction equation is given. Regularization of the ill-posed problem has been done. The reconstructions of some typical flame distribution in furnace are simulated by computer.
针对温度场重建这一逆问题的数学模型，给出代数重建公式，并对不适定问题进行了正则化处理，分别对炉膛火焰分布的几种典型模型进行了仿真重建。