查询词典 hough

The corner is defined as the point of intersection of two lines,and the Hough transform is used to detect the lines.

在该方法中，角点将被定义为二条直线的交点，并利用Hough变换来检测直线。

This paper introduces our development in the calculation of Hough functions based upon Laplace's tidal equation.

本文介绍了我们以拉普拉斯潮汐方程为基础，在发展求取Hough函数方面取得的进展，包括对有关计算方案和详细步骤的说明。

And the result is sub-pixel accuracy. The least squares estimator circle detection algorithm is faster than Hough transform.

最小二乘圆检测法较Hough变换计算速度快，对由光照引起的边缘缺失有一定的适应性。

A novel no touch measuring method for traditional products was put forward and a precise model of Direct Linear Transform was presented for the aberration in the images occurred at every turn. Rectangle mark tag and location parameter are no longer needed in this algorithms. A method of tolerance reckon by curve equation was also provided. In order to raise the operation speed Hough circle detection method was improved. In the meantime circle detection method to images with more than one circle was applied, so that the concentricity calculation is possible.

论文的创新点是，提出了传统机械产品的非接触式测量方法，特别针对图像采集环节最容易出现的畸变现象，提出了一种严密的直接线性变换模型，该算法既不需要在影像上有框标，也不需要有摄影机内外方位参数的起始近似值，具有显著优点；提出了利用曲线的方程来确定公差的方法，对传统的Hough圆检测方法进行了改进，提高了检测速度，同时将圆检测用于存在多圆的图像，使多圆的同心度检测成为可能。

Although the Hough transform is widely used in image processing research, because it is a from the image space to parameter space of the mapping relations.

虽然Hough变换被广泛应用于图像处理的研究，但由于它是一种从图像空间到参数空间的映射关系，无法对无参数的离散的点进行提取。

The first method defines sample database by artificial operation, the second method builds one sample database and one potential sample database by the sample\'s self- training method. Some potential geometric regions are obtained by using a simple fast Hough arithmetic.

同样通过简单的快速Hough算法获取一些潜在几何区域，用对二值图像的块匹配方法对潜在的矩形区域进行识别并把它分类变成几种比分板和广告块。

The first method defines sample database by artificial operation, the second method builds one sample database and one potential sample database by the samples self- training method. Some potential geometric regions are obtained by using a simple fast Hough arithmetic.

同样通过简单的快速Hough算法获取一些潜在几何区域，用对二值图像的块匹配方法对潜在的矩形区域进行识别并把它分类变成几种比分板和广告块。

But the traditional circle Hough transform needs 3-dimension parameter space, so the process of the computing costs a lot of time and very large computer memory.

但传统的圆Hough变换的需要， 3维参数空间，所以过程中的计算成本了大量的时间和非常大的电脑记忆体。

For bottle image, lines in the matter brim was detected by means of Hough Transform and then dimensions and perpendicularity tolerance were obtained.

对药瓶图像，通过Hough变换的方法，检测出边缘几条直线，据此求出尺寸公差与垂直度。

It first choose a mask with a suitable size in the edge image, the local PCA is performed to obtain the principal direction of the mask. The chosen polar angle in Hough transform is limited in a small range emphasizing particularly on the statistical disciplinarian of all principal directions, so it speed up the search time by reducing the range of .

首先在边缘图像范围中选取合适大小的掩膜，通过局部PCA获得支持集内像素点的主元方向；侧重依据所有掩膜内主元方向信息的统计规律来约束Hough变换的极角选择范围，通过缩小参数选择范围大大缩短搜索时间。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。