边缘算子

It also shows the method and feasibility to derive forest parameters, such as tree height, and the crown length of individual trees from airborne laser scanning altimetry data in this dissertation.

本文详细研究了距离图像的处理方法，讨论了各种边缘提取算子在处理距离图像中的应用，并对距离图像进行中值滤波和增强处理，取得了较为满意的效果。

Documents given Matlab language, the binary image segmentation using the operator to identify the ed...

文件给出了matlab语言进行，对二值图像先用sobel 算子找出边缘，再用hough变换找出圆的圆心和半径的程序，并附图像和解释！

Objective: This paper introduces an edge detection method of blood cell image, which is based on and.

目的：介绍一种基于小波变换和拉普拉斯算子的血液细胞图像边缘识别方法。

A new edge detection method based on morphology and Canny operator is developed.

提出了一种基于形态学和Canny算子的图像边缘提取算法。

Canny operator for edge detection function documents, we can try to use use are based on Matlab platform.

用Canny算子进行边缘检测的函数文件，大家可以尝试的用用，都是基于matlab平台的。

In theory Canny operator is optimal in continuous domain for edge detection, but not optimal in discrete case, which may lead to inaccurate result.

从理论上来说，Canny算子是连续域最优的边缘检测算子，但在离散域中却并非最优，对于数字图像可能存在误差。

Morphological dilations were used to link image edges extracted by Canny operator. Image segmentation based on region growing was used to extract closed regions in SAR and optical image as invariable features.

通过Canny算子提取出边缘，并用形态学膨胀对不连续边缘进行连接，在此基础上用区域生长法提取光学和SAR影像中的封闭区域作为面特征。

Considering that oilcans, the major part of oil storeroom object, show circular figure with higher grayness, this research adopted Sobel operator to detect the edge of images; then located the circles which have definite size through hough transform; finally, the areas of oil storm were found out and their positions were accurately located based on the circles' space distribution and their quantitative relationships.

鉴于油库目标的主要组成部分——油罐在遥感图像中呈灰度较高的圆形的特点；本文首先对遥感图像采用sobel算子提取图像边缘信息，然后利用边缘信息和改进hough变换提取图像中限定大小的圆的位置，最后再根据图像中提取出的圆的空间分布和数量关系找出油库区域并对其进行精确定位。

To locate the barcode, getting the edge of barcode and locate the L, we use the Gauss Laplace operator. This method first smoothing the noise and then getting the edge, and we can get more accurate Border information.

为了定位条码、获得条码的边缘及定位条码的L型，本文使用了高斯拉普拉斯算子进行边缘检测，首先平滑掉噪声，再进行边沿检测，这样找到的边界信息更准确。

Firstly, edge extracting is conducted with a laplace operator for a k frame image of fk and a k-1 frame image of fk-1 collected by a camera; secondly, difference calculus is conducted for images of two frames whose edge is extracted, and a difference image of D is obtained; thirdly, average filtering and binary processing is conducted for the difference image of D, fourthly, the image which is processed of binary is judged, i.e. when the difference of a pixel in the difference image is more than the set threshold value, the pixel is confirmed as a target pixel; otherwise, the pixel is a static background pixel.

首先对摄像头采集的第k帧图像f k和第k-1帧图像f k-1分别采用laplace算子进行边缘提取，然后对经过边缘提取的两帧图像进行差分运算，得到差分图像D，然后对差分图像D进行均值滤波和二值化处理，最后对二值化后的图象进行判断，即认为当差分图像中某一个像素的差大于设定的阈值时，则认为该像素是目标像素，反之则认为是静止不动的背景像素。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。