查询词典 edge detection

KONG Xiang-wei,XIE Cun,XU Wei-ran(School of Electronic and Information Engineering,DUT,Dalian 116023,China)Abstract: This paper gives a method of image edge detection,using multiple edge features and fuzzy reasoning.

摘 要：图像边缘检测的传统方法一般仅基于边缘邻域的一阶或二阶导数这一单一特征，并且对模糊边缘图像不敏感，针对此问题，本文提出基于多特征和模糊推理的边缘检测算法。

In order to get anti-noise and good localization image edges, a new fuzzy multi-scale edge detection algorithm is presented in this paper. Firstly, multiple edge images under different scales are acquired by the optimal linear filter for Demigny's criteria.

工业技术能源与动力工程模糊多尺度边缘检测方法的研究与应用硕士边缘检测；最优滤波器；平滑滤波器；模糊多尺度； edge detection；optimal filter；smooth filter；fuzzy multi-scale；为了获取抗噪性强、定位准确的边缘，本文提出了模糊多尺度边缘检测算法。

Compared with the conventional 2-D coordinate measuring systems, the new system has great improvement at measuring speed, aiming accuracy, measuring function and degree of automation The new system consists of two parts image measuring system of displacement and image autofocusing and aiming system The displacement measuring system in which CCD camera is used for locating the optical scale not only processes the advantages of absolute code measuring system powerful noiseproof feature, good long-time stability, easily compensated ruling error of optical scale, but also has the advantages of morden numerical systems easy numeralization and intelligence The autofocusing and aiming system in which CCD camera is applied for gaining the defocusing information and edge location information of workpiece enjoys the advantages of fast autofocusing, accurate result, high accuracy of edge detection and wide range of measured parameters, etc The feasibility of the new 2-D measuring system is analyzed in this thesis and related parameters are calculated.

详细本文在分析了现有二维中小尺寸测量系统中，光学仪器的光学读数系统和调焦、瞄准系统的优缺点之后，结合现代数字化仪器的优缺点，提出研制一种新的二维图像测量机系统。与传统二维坐标测量系统相比，新型系统在测量速度、瞄准精度、测量功能及自动化程度等方面都有较大的提高。该系统由图像式位移测量系统和图像式自动调焦、瞄准系统组成。图像式位移测量系统采用CCD摄象机拾取光学线纹尺的位置信息，既具有传统光学式绝对码位移测量系统的优点—抗干扰能力强、长期稳定性好、光学标尺误差易于补偿等优点，又具有现代化数字仪器易于微机化、智能化的优点。

Canny operator video segmentation is a method that gets the edge of image and segments it by using image edge detection.

Canny算子视频分割中运用了图像的边缘检测方法，把图像的边缘提取出来对图像进行分割。

This paper introduces a method of edge detection. By comparison with topography, it is found that the character of edge of image shows the same valley's character as relief map.

利用图象边缘轮廓呈现的一种沟壑性质，开发了一种通过求象素亮度的极值来进行边缘检测的方法。

Department of Computer Application Engineering,Shenzhen Polytechnic,Shenzhen 518055,China）Abstract: In order to advancing measurement precision of bolt and decreasing supposititious edge pairs in image procession, the arithmetic of edge detection is improved.

摘 要：为了提高紧固件尺寸的自动测量精度，针对图像处理中边沿检测容易出现虚假边沿的问题，对边沿检测算法进行了改进。

Automatic threshold choice is difficult and important to color images edge detection, First of all, on the base of human visual properties, threshold versus intensity function of human visual system are researched and analyzed, by using method of mathematic modeling and the result of saturation research, function of least color difference that can be perceptible by visual systems in detecting edge is given.

摘要自动阀值选取是彩色图像边缘检测的难点和关键问题，首先从人类的视觉特性出发，分析了人类视觉系统的亮度感知门限函数，利用数学建模方法和色度学方面的研究成果，给出人类视觉系统对彩色图像边缘所能识别的最小彩色差函数。

First, we carry on the pretreatment to the original license plate image; then,detect the car licence edge with one anti-chirp mathematics morphology edge detection operator; finally, remove the horizontal noise of car licence mage and union horizontal, vertical positioning projection for locating the car licence.

首先，对原始车牌图像进行预处理；然后，利用一种抗噪型数学形态学边缘检测算子进行车牌边缘检测；最后，去除图像水平噪声，结合水平、垂直投影进行定位。

An algorithm of edge detection combined with morphological filter is proposed, firstly, it adopts adaptive method to decide the wimble structuring element and applies iterative morphological filter based on two wimble structure elements to filter the image, then uses multi-scale morphological edge detector to get multi-scale edges, and obtains the more ideal image edges under the environment of existing noise by integrating the edges of various sizes.

文中提出了一种结合形态学滤波的边缘检测算法，该算法采用自适应方法确定锥形结构元素，然后利用双锥形结构元素对图像进行形态学迭代滤波，对滤波后的图像进行多尺度形态学边缘检测，并将各尺度下边缘检测的结果进行合成，最终得到在噪声存在条件下较为理想的图像边缘，并且与其它边缘检测算法进行了对比实验，实验验证了该算法的可行性和有效性。

The ordinary edge detection methods such as Sobel and Canny operators are immune to noise, which result in cophasal axes discontinuity due to lack of edge information caused by noise.

由于边缘检测中常用的Sobel算子和Canny算子检测同相轴时对噪声免疫差，常因噪声因素引起边缘信息缺失导致同相轴提取不连续，本文采用中值滤波并对Sobel算子进行改进，对地震剖面图进行预处理，结合均方差自动确定阈值并进行异常检测，提取完整同相轴。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。