gradient operator
英 [ˈɡreɪdiənt ˈɒpəreɪtə(r)]
美 [ˈɡreɪdiənt ˈɑːpəreɪtər]
网络 梯度算子; 梯度运算子; 其中甲是梯度算子; 梯度算符
双语例句
- Detection and Localization of the Mouth Based on Local Gradient Operator
基于局部梯度算子的嘴部检测与定位 - Image enhancement algorithm of airspace gradient operator and wavelet-domain multiresolution analysis based
基于空域梯度算子和小波域多分辨分析的图像增强算法研究 - Edge Detection Method Research of the Linear CCD Image based on Gradient Operator
基于梯度算子的线阵CCD图像边缘检测方法研究 - Secondly, Filtering based on wavelet multi-scale analysis using wavelet function, and apply the gradient operator to pick up the edge map, and get its contour.
其次，利用小波多尺度分析滤波和基于梯度矢量流的主动轮廓模型进行边缘点的连接，得到真实轮廓。 - Adopt Roberts cross gradient operator, we get super-resolution algorithm with lower computational complexity and get better effect than bilateral total variation operator at some case.
采用Robert交叉梯度算子构造正则项，得到计算复杂度较低的超分辨率图像复原算法，而且在某些情形下其效果要比采用双边全变差算子略好。 - The gray-weighted gradient operator was introduced to extract the transition regions in image and meanwhile suppress the noise.
采用新的灰度加权梯度算子对细化后的图像提取过渡区，能较好地抑制图像噪声。 - Besides, this paper did some researches on generating chain code, extrema detection in digital images and thresholding algorithm using gradient operator.
另外，本文在链编码的生成算法，数字图像极值点的计算，以及利用梯度算子对非均匀光照文本图像分割等方面也分别作了研究。 - In view of the image characteristics of the defect, the Kirsch gradient operator is used in image processing. A ideal result is received and the defect of glass shell can be identified.
针对玻壳图像中缺陷的特征，采用Kirsch梯度算子法对图像进行处理，取得了理想的效果，可识别出玻壳缺陷。 - Firstly, a gradient operator based on local standard deviation is performed and potential edge regions are well separated.
首先提出了一种基于标准差的梯度算子，将图像中潜在的边缘区域很好地区分出来； - Multi-scale morphological gradient operator is used to detect the edges.
采用多尺度形态梯度算子进行边缘检测，这种梯度算子抗噪能力强。 - After applying the morphological gradient operator, geodesic distance and watershed transformation to the processed image, the cranium and meninges of brain magnetic resonance image are segmented precisely.
再应用形态学梯度运算、测地距离和流域变换方法就能准确地分割出脑部磁共振图像的头盖骨和脑膜。 - The algorithm chooses regularization item based on the Roberts cross gradient operator and chooses the regularization parameter adaptively.
该算法从Roberts交叉梯度算子的角度构造正则项，从自适应性的角度确定正则参数。 - According to this method, we divide a gray-level image into many small blocks, and find out all may-be edge pixels using gradient operator in each block.
该方法将整幅灰度图像分成小块，在每个小块中利用梯度算子对小块中的边界点进行检测，寻找出小块内的所有边界点； - A new gradient operator was presented for studying gradient matrix.
在研究梯度矩阵的同时，本文还给出了一种新的梯度算子。 - A generalized steepness lemma of projected gradient operator on a closed convex set is discussed in this paper. The global convergence and strong convergence of the projected gradient methods using several slacked step-size rules are proved.
在一般闭凸集上建立了梯度投影算子的广义陡度引理，利用它证明了几种松弛搜索下梯度投影算法的全局收敛性、强收敛性以及若干良好的收敛性质。 - The enhanced gradient operator was designed to stand out the edge of image and retain the low frequency information.
此外还开发了增强型的梯度锐化算子，它既突出了边缘信息，又保留了低频信息，便于人和机器的一些后续处理。 - The real-time measurement is carried out using a simple algorithm or the gradient operator of image grey scale to detect and recognize quickly the edge of an image, thus acquiring the workpiece length.
考虑到实时在线检测要求算法简单计算速度快，在对图像信息进行边缘噪声滤除的基础上，利用图像灰度的梯度算子提取工件边缘特征，并进行边缘识别，从而实现工件长度的在线测量。 - The expression of a complex gradient operator is provided by the theorems in this paper.
定理给出了这类标量函数的复梯度算子的正确表达式。 - Compared with the traditional gradient operator algorithm, the radial scan algorithm is more applicable and reliable. The design, execution process, and characteristics of the radial scan algorithm are expounded with examples.
与传统的梯度算子法相比，这种算法有更好的适应性和可靠性，结合实例介绍了该算法的设计和实现过程及特点。 - Morphological gradient operator is researched and analyzed, a new multistage morphological gradient operator is presented, which is fit for edge detecting of X-ray digital image.
研究和分析了形态学梯度算子，提出了一种适合X射线数字图像边缘检测的多尺度形态学梯度算子； - The orientation image estimated by Sobel gradient operator is compared for the filtered fingerprint image and minutiae matching.
利用Sobel算子计算出指纹的脊线方向并用低通滤波器平滑其方向图，为图象滤波和匹配提供了良好的条件。 - With the help of the search technique based on traditional optimal methods, gradient operator cross search operator and evolution operator are exploited to strengthen the local search ability of genetic algorithm.
第3章借鉴了传统优化方法中的搜索技术，开发了梯度算子、正交搜索算子和进化算子以强化遗传算法的局部搜索能力。 - Extending gradient concept into vector space and implementing the gradient operator in RGB vector space directly on the multi-spectral remote sensing image.
将梯度计算推广到向量空间，直接在RGB向量空间对多光谱遥感影像进行梯度运算。 - And then with a threshold of the gradient operator is applied to image sharpening processing, the iterative algorithm for the best threshold is adopted to achieve the binary division.
而后采用带阈值的梯度算子实现图像锐化，运用迭代式求图像最佳阈值算法实现图像的二值化分割。 - In this thesis, Canny operator is used to detect the edge information instead of gradient operator; upper eyelid and lower eyelid are detected using Hough transform by being divided into two segments, respectively.
本文算法对其进行了改进，使用Canny算子代替了梯度算子，更好的提取边缘信息；并将上眼睑和下眼睑分别分作两段利用Hough变换进行检测。 - This algorithm based on the combination result of gradient and zero crossings is presented which the image intensity of neighborhood region of pixel is well estimated by LS-SVM with mixtures of kernels and the gradient operator and zero crossing operator are obtained by LS-SVM based on mixtures kernel function.
该方法利用LS-SVM对图像像素邻域的灰度值进行曲面拟合，通过混合核函数推导出图像的梯度和零交叉算子，并结合梯度算子和零交叉算子实现了图像边缘定位。 - The focus of this thesis includes: 1. An unsupervised edge detection method based on the traditional Canny and multiplicative gradient operator was proposed, which had good suppression ability to the speckle noise. 2.
本文具体内容包括：1.结合传统Canny算子，提出一种对斑点噪声抑制能力较强的无监督乘性梯度边缘检测算法。 - Image restoration methods based on PDEs were first derived from Gaussian filter, and then Perona and Malik changed linear diffusion model to non-linear diffusion model with an initiative by introducing the gradient operator to detect edges.
这类方法最早是通过Gaussian滤波引入的线性模型，然后Perona与Malik开创性地引入梯度算了进行边缘判断，将线性扩散模型转化为非线性扩散。 - Wavelet transform can filter out a lot of noise in the image, and morphological gradient operator can locate the image edge more accurately. Not only more complete edge information can be extracted from the image, but also it has a strong robustness of anti-noise.
小波变换可以滤掉图像中含有的大量噪声，而数学形态学梯度算子可以更精确地定位图像边缘，可以提取出比较完整的边缘信息。