查询词典 differential operator

By averaging the nonzero weights of operator template to the image pixels which have the same distance to constant coefficient "1" as well as utilizing self-dependency of surrounding pixels, an improved fractional order differential operator template was achieved.

将算子模板的非零权值平分到与常系数"1"距离相同的像素点中，利用周围像素点的自相关性，得到一种改进的分数阶微分算子模板。

Its main tasks are to deal with binary images, gray scale processing, and the use of Sobel, Canny, Roberts, Laplacan operator of four digital image edge detection, the results show that: Roberts operator more precise positioning, but more sensitive to noise, Sobel operator son of gray-scale images with low noise gradient has a better detection of the effect of Laplacian can be detected in the vast majority of the edge did not appear at the same time the basic pseudo-edge, the edge can be precisely targeted, Canny operator is the traditional first-order differential operator in one of the best operator to detect the best edge detection, edges clear, make clear at a glance.

主要工作包括图像的二值处理，灰度处理，并运用Sobel、Canny、Roberts、Laplacan四个算子实现数字图像边缘检测，结果表明：Roberts 算子定位比较精确，但对噪声比较敏感，Sobel算子对灰度渐变低噪声的图像有较好的检测效果，拉普拉斯算子可以检测出绝大部分边缘，同时基本没有出现伪边缘，可以精确定位边缘，Canny算子是传统一阶微分算子中最好的算子之一，检测边缘检测的效果最好，边缘轮廓清晰，使人一目了然。问题补充：摘要英文翻译，不要在线翻译的，是在线等！急啊！！！！谢谢！！！！

Its main tasks are to deal with binary images, gray scale processing, and the use of Sobel, Canny, Roberts, Laplacan operator of four digital image edge detection, the results show that: Roberts operator more precise positioning, but more sensitive to noise, Sobel operator Gradient gray son of low-noise images have a better detection of the effect of Laplacian can be detected in the vast majority of the edge did not appear at the same time the basic pseudo-edge, the edge can be precisely targeted, Canny operator is the traditional first-order differential operator in one of the best operator to detect the best edge detection, edges clear, make clear at a glance

主要工作包括图像的二值处理，灰度处理，并运用Sobel、Canny、Roberts、Laplacan四个算子实现数字图像边缘检测，结果表明：Roberts 算子定位比较精确，但对噪声比较敏感，Sobel算子对灰度渐变低噪声的图像有较好的检测效果，拉普拉斯算子可以检测出绝大部分边缘，同时基本没有出现伪边缘，可以精确定位边缘，Canny算子是传统一阶微分算子中最好的算子之一，检测边缘检测的效果最好，边缘轮廓清晰，使人一目了然。不要在线翻译的那种！在线等！！急！！！谢谢！！！

On the other hand,the structure of differential operator and that of difference operator are very similar,therefore,it is a urgent task to find in the current scientific research a new theoretical framework,which can unify the continuous systems and the discrete ones for the sake of study in order to not only avoid unnecessary repetition in work but also be able to make better insight into the nature of the differences among different systems.

因此，能否找到一个新的理论框架，将连续系统与离散系统统一(来源：9dABC论9e9e文网www.abclunwen.com)起来进行研究，从而避免不必要的重复工作，且能更好的洞察不同系统之间的本质差异，已是当前科学研究的当务之急。

In these years,some re-search works have began to consider the discrete Integrable equations,i.e.replace thepartial differential operator by the difference operator.

近年来，随着经典可积系统理论的不断完善，可积系统方面的研究逐渐开始转向离散可积系统，即用差分算子代替微分算子来构造可积系统，目前该方向的研究正在蓬勃发展。

His main research direction is System of Hamiltonian, Table of Operator of Schrodinger, Differential operator and Small Wave Theory.

主要研究方向：Hamiltonian系统，Schrodinger算子的谱，微分算子、小波理论。

With the combination of the phase operator and differential operator, extrapolating operator adaptable to the variation of lateral velocity is provided.

本文将相移算子与有限差分算子结合，给出了适合横向速度变化的波场延拓算子。

The paper showed the conception and species of the edge,and deeply explored the differential operator methods of first order and differential operator methods of second order.

通过介绍边缘的概念及种类，对传统的一阶微分方法和二阶微分方法进行了深入的探索，对各种微分方法的原理及过程，以及各种方法对图像的处理结果进行了对比分析，最后对遥感图像边缘提取方法所面临的问题和今后的发展方向表达了自己的观点。

Sobel Operator : airspace is a differential operator, through its image sharpening...

Sobel算子：是一种空域微分算子，可以通过它锐化图象。

A new differential operator suitable for extracting leaves'texture was studied, and the percent histogram on base of the differential operator was used in extracting texture feature of leaves.

进行了基于差分算子的相对差值百分率直方图法提取缺素叶片上颜色差形成的纹理特征研究，并且提出了适合于本研究的最大化差分算子。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。