最后采用最小二乘拟合从目标梯度场重建出增强后的图像。
An enhanced image is finally reconstructed from the target gradient field by least square fitting.
本文提出了一种基于最小二乘拟合的轮对轮缘在线检测系统。
This paper proposes an online detection system of flange based on Least Square Collocation (LSC).
用一种新的非线性最小二乘拟合算法确定出了试样的导温系数。
The thermal diffusivity of the specimen is determined by a new nonlinear least-square fitting algorithm.
各种参数估值方法的比较表明，时间域最小二乘拟合法较为精确。
The comparison among various methods of parameter estimation shows that the least-squares fitting method in the time domain is more accurate one.
对于测量的数据采用直接最小二乘拟合，从而可以解算出工件的曲率。
The data for the measurement can use direct least square fitting to solve the curvature of the workpiece.
为处理复杂的正电子寿命谱，本程序可提供三种非线性最小二乘拟合方法。
In the program, three kinds of nonlinear least-squares fitting methods were supplied for processing the complex positron lifetime spectrum.
研究了最小二乘拟合方法在CCD型光学多通道分析仪波长标定中的应用。
The application of the least square polynomial fit method in the wavelength calibration of the Optical multichannel analyzer with a CCD detector is investigated.
其方法实质上是加权最小二乘拟合与叠代修正指标化的技巧相结合的平滑过程。
Substantially, this method is a smoothing process resulted from the mathematical skills of weighted least square fitting, combining with the iterative method for correct indexing.
通过对最小二乘拟合公式实际计算结果的分析，得出了“拟合公式阶数取3为最佳”的结论。
By analysing the compute result of the quadratic approximation formula, we educe the conclusion that 3 is the best rank code for the quadratic approximation formula.
将合成校准光谱和实验测得的光谱进行非线性最小二乘拟合，得到了不同温度下标准气体CO浓度。
With the nonlinear least squares fit between measured spectra and calibration spectra, standard gas concentrations of co at different temperatures are obtained.
用参数可分离非线性最小二乘拟合方法，根据少量测量数据较准确地求得了太阳电池双指数数学模型。
Solar cell both exponent mathematical model can be obtained exactly using a few measurement data by the least squares fitting method that parameter can be separated.
提出一种基于模式展开和最小二乘拟合的算法，可以从大剪切量差分波前快捷地重建原始的二维波前。
A novel technique is proposed based on Fourier modal expansion and least-square fitting to reconstruct a two-dimensional wavefront from phase difference resulting from large shear.
分析了最小二乘拟合法在CCD采样曲线拟合中的应用，对应用中存在的问题及其解决方法做了进一步的探讨。
The least - square method applied to CCD graph fitting is analysed, and a further solution of the problematic point in the application is given.
为了从含噪声的位移场中计算得到可靠的应变场，提出一种基于位移场局部最小二乘拟合的全场应变求解方法。
In order to obtain reliable strain field, full-field strain measurement based on least-square fitting of local displacement for digital image correlation method is proposed.
结果表明，增加最小二乘拟合项次和合理选择数字图像相关计算子区域和步长大小可以提高应力强度因子计算精度。
The results show that increasing the number of least squares fitting terms and reasonable selection of digital image correlation subset size improve the accuracy of calculated stress intensity factor.
提出了辐射光谱、测量区域内大气透过率谱的算法模型，以及应用非线性最小二乘拟合算法实现气体浓度反演的方法。
The algorithm of radiance spectra and transmittance spectra in measured region was proposed, and the method of retrieving gas concentrations with NLLS fitting algorithm was also proposed.
利用计算机和参数控制与数据采集器对膜片钳放大器进行数字控制和参数检测，并采用最小二乘拟合等算法计算相关参数。
The routine controls and inspects the patch-clamp amplifier by employing the personal computer and data acquisition, and then evaluates the analog parameters using relative arithmetic.
对于线性最小二乘拟合（LLSF）的主要诟病在于其根本无法通过观察比赛而读懂比赛，即使提供信息显示和口头解说也无法达成。
The major criticism towards the LLSF was that it is virtually impossible to understand the game from watching it, even if presented with an info display and oral explanation.
我们提出基于傅里叶模式估计的二维波前重建算法，利用最小二乘拟合原理，可以计算出待测波前的傅里叶变换系数，从而恢复原始波前。
In this paper a new algorithm based onFourier modal estimate is proposed to reconstruct the original wavefront by use of least-square fitting.
由数字图像相关方法所得位移场提取不同载荷作用下裂纹尖端应力强度因子，并分析最小二乘拟合项数、数字图像相关计算子区域和步长大小对计算结果的影响。
The stress intensity factor was extracted from the displacement field, and the effects of the number of terms, subset size and subset spacing on the calculation results were analysed.
同时，拟合方法采用目前非常成熟的多项式最小二乘拟合。从而不仅能控制拟合函数的复杂性，而且使分段拟合的补偿区间数量达到最少，极大地降低了计算成本。
The paper adopts the method of multinomial least squares as fitting to make the fitting function be simple and the amount of compensation interval be least, reduces the calculation cost.
讨论了最小二乘多项式拟合中引起正规方程组病态的两个重要原因：节点对原点的偏离程度和节点坐标的数量级。
In this paper two reasons-the deviation of the data from the origin and the size of the data-causing the ill-conditioned normal equations in the least square fitting of a polynomial are discussed.
该算法是在最小二乘意义上的多项式曲线拟合，实验结果表明，其校正效果明显优于分段线性校正算法。
The algorithm is polynomial curve fitting based on least square approximation. The experimental result shows its performance is more effect than that of the piecewise linear algorithm.
本文提出了一种复合数字滤波方法及基于最小二乘原理的直线拟合方法，用于实现火炮接口参数检测系统的滤波和线性度拟合。
A compound digital filtering method and a line fitting method based on the least squares are presented, which are used in the measurement system of interface parameters of artillery.
对以幂函数族和以正交函数族为基底的最小二乘曲线拟合法作了对比分析。
The least-squares curve fitting methods based on power functions and orthogonal functions are analyzed and compared.
目前算法可以分成两类：即闭形解和最小二乘迭代拟合。
The algorithms can be classified into two categories: a closed form solution and an iterative least squares fitting.
方法中采用基于类椭圆边缘属性对特征区域进行自动识别，采用最小二乘椭圆拟合精确求取类椭圆亚像素定位中心。
In the method, the automatic identification of feature area is fulfilled based on the edge attribute, and the sub-pixel center location is accomplished with the least-square approach.
文中介绍了基于最小二乘曲线拟合技术在XQY1 - 1型气压传感器中的应用。
The application of curve fitting based on least-squares methods in XQY1-1 air pressure transmitter is introduced.
通过分析MOS管在饱和区失配因素，优化MOS管失配模型，提出用最小二乘曲线拟合法进行相关模型参数提取。
The factors of MOS transistor in the saturation region are analyzed, the mismatch models are optimized, and the model parameter extraction is done by least squares curve fitting method.
通过分析MOS管在饱和区失配因素，优化MOS管失配模型，提出用最小二乘曲线拟合法进行相关模型参数提取。
The factors of MOS transistor in the saturation region are analyzed, the mismatch models are optimized, and the model parameter extraction is done by least squares curve fitting method.
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