查询词典 edge detection

The instrument software has the function of demonstration of basic knowledge of Digital Image Processing, i.e., it performs the functions of real-time collection and images saving, color change (brightness, binarization, RGB separation etc.), geometrical transform, edge detection (Robert arithmetic operator, Sobel arithmetic operator, Prewitt arithmetic operator, LOG arithmetic operator, Canny arithmetic operator etc.), gray-scale image enhancement (histogram equalization, averaging filtering, median filtering), and binary mathematical morphology management (erosion, dilation, opening, closing, objects marking, Euler number calculation).

该测试仪的软件部分包含数字图像处理课程所涉及的一些基础知识的演示，具体包括图像的实时采集与保存、颜色变换(灰度化、二值化、R、G、B颜色分量的分离等)、几何变换、边缘检测(Robert、Sobel、Prewitt、LOG、Canny)、灰度图像增强(直方图均衡化、均值滤波、中值滤波等)、二值图像操作(腐蚀、膨胀、开启、闭合、对象标注、欧拉数计算)等功能。

At the same time, an experiential edge detection algorithm is proposed in order to alleviate background disturbance.

同时，为了减轻背景干扰，提出了一种经验有效边缘的检测方法。

Then,according to the characteristics of LER measurement and characterization method,the influence factors of LER measurements using AFM,including the nonideal properties of the sizes and shapes of probe tips,the signal noises of AFM images,scan sampling intervals,the driving precision of piezoelectricity,cantilever oscillation and the free parameters of edge detection algorithm and so on,are analyzed theoretically and experimentally,and the methods for restraining and amending the measuring errors are respectively proposed.

然后，根据线边缘粗糙度测量与表征的特点，对各种影响因素，包括探针针尖尺寸与形状的非理想性、AFM扫描图像的噪声、扫描采样间隔、压电晶体驱动精度、悬臂梁振动以及线边缘检测算法中的自由参数等进行了理论和实验分析，并分别提出了抑制及修正的方法。

From the point of data fusion,a new fusion scheme is proposed.This new method band edge detection based on wavelet and the normalized correlation moment together.

从数据融合的角度，提出了一种有效的融合算法，该方法将基于小波变换的图像边缘检测与归一化相关矩相结合并应用于图像的融合中。

Finally, a plan of hardware realization for edge detection based on fuzzy theory is presented.

最后，本文提出了模糊边缘检测算法的硬件实现方案。

An edge detection method is proposed to examine globular materials using hybrid neural network.

提出了一种应用混合神经网络进行颗粒图像边缘检测的方法。

We will go into particulars some color spaces in common use and their characteristics,and summarize color image edge detection approaches arising in recent years.

在灰度图像中，图像的边缘是由灰度不连续造成的。检测灰度图像边缘最简便的方法就是利用各种微分算子[1]。相

It makes full use of the direction information which goes along with the process of the optimum edge detection, and two algorithms: region statistics and center collection are designed to realize the enhancement of the central information by converging the outline of gobbet object to the center of it,and at the same time it effectively resolves the problem of cutting up the outline of the object and attribution of it; the algorithm of barycenter convergence and gobbet feature decision are used to realize the accurate location of the central position.

该方法充分利用最佳边缘检测过程伴生的方向信息，设计了区域统计、中心集聚算法，将团块目标轮廓信息会聚到目标中心以实现中心信息增强，同时有效地解决了目标轮廓分割及归属问题；采用重心聚合和团块特征判定算法，实现中心位置准确识别定位。

Source codes for image processing,including grey scale stretching,edge detection,and the like. each algorithm or code is complete.

详细说明：图象处理的代码，包括灰度拉伸，边缘检测，图象处理各个算法程序完全，代码完整。

Two pairs of vanishing points of orthogonal directions from each image are obtained by using the concept of cross ratio and harmonic conjugate in projective geometry and the orthogonal property of the two diagonals on a square. All intrinsic parameters are calculated linearly after capturing the template from at least three shooting angles. Errors of edge detection and line fitting are avoided because the method does not require image matching.

充分利用了射影几何中交比和调和共轭的知识以及正方形模板对角线相互垂直的性质，根据一幅模板图像可以得到两组相互正交的消失点连线，在至少三个不同方向拍摄的图像上线性求解出摄像机的所有内部参数。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。