查询词典 edge detection

First of all two-dimensional bar code of the positioning and segmentation algorithm using Hough Transform and Sobel edge detection of the bar code images collected from the original image to effectively separate and then analyzes the barcode image through the optical system of the noise model, put forward a Calculation of point spread function of standard deviation of the algorithm uses Flourier transform adaptively select the threshold to remove noise caused by invalid border, bar code and thus be the basic module.

首先探讨了二维条码的定位与分割算法，利用Hough变换与Sobel边缘检测把条码图像从原始采集的图像中有效地分割出来然后分析了条码图像经过光学系统的噪声模型，提出了一种计算点扩展函数标准方差的算法采用Flourier变换自适应地选取阈值去除噪声导致的无效边界，从而得到条码的基本模块。

This procedure first Butterworth high-pass filter images, After segmentation operator subroutine used for edge detection, good results!

此程序先由Butterworth高通滤波器滤波图像，后用sobel算子程序进行边缘检测，效果不错！

Two edge detection operators of second de ivative model, the discrete Laplacian of Gaussian and Laplacian of binomial distribution operators are introduced in this paper.

摘要本文首先导入了离散的高斯-拉普拉斯及二项分布--拉普拉斯两种二阶导数型边缘检测算子。

In chapter four, methods of edge detection with wavelets is developed.

导出了小波变换在图像门限法中提取边缘的方法。

For the image of combustor, the method proposed in this paper is based on the grads operators. Through learning the samples of images, the parameters of the templets are trained by using the neural network. Then we can get the optimized grads operators. The result of the experiment shows that this method can effectively improve the edge detection of image processing.

对燃烧器图像，本文以梯度算子为基础，通过对样本图像的学习，利用神经网络对模板参数进行训练，从而得到最优的梯度算子，试验结果表明，本文方法可以使图像边缘检测的效果得到明显的改善。

Phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map, which shows the result is correct.

4对于低噪声情况下或滤波后的干涉条纹图，在基于边缘检测的相位解缠过程中，利用Snake模型可以高效准确的实现边缘点的连接，所连接的边缘线与干涉条纹很好的吻合，可将连线的精度控制在三个像元。

A GVF snake model was used to link discrete edges, the linked edges were kept well accordance with fringes of phase map. 4Phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map.

对一幅干涉相位图的滤波结果表明，该算法很好的抑制了斑点噪声，极大的降低了残余点的数量，保持了条纹边缘和相位细节信息，并使绝对相位保持在一定的动态范围。

It also on the located precision and efficiency scale when it is used to be a edge detection operator.

利用M带小波变换的特点和边缘的特点，实现了图像边缘的提取。

The measuring method of 1-D thread image is discussed based on that of 2-D image. The points on tooth contour gathered by edge detection are fitted to lines, and the tooth's size can be calculate from fitted contour.

在原有二维螺纹图像测量理论的基础上，本文对一维图像的测量方法进行了探讨，根据螺纹轮廓的信号直接采集型值点参与拟合计算，以拟合轮廓进行尺寸计算。

Canny edge detection based on wavelet is used to detect target in the first frame.

为此，提出边缘检测与Mean Shift 相结合的方法。

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。