查询词典 edge detection

According the feature of gray absolute correlation degree, an edge detection method based on ray absolute correlation degree and standard deviation of Image sub-block is given, and the threshold is adaptive in the method.

针对灰色绝对关联度计算模型的特点，提出一种基于灰色绝对关联度和图像子块标准差的边缘检测算法，实现遥感图像边缘灰提取过程中阈值的自适应调整。

Wavelet modulus maxima with high frequency and low frequency coefficients were obtained firstly through multiscale decomposition of well logging data;then important wavelet coefficients were chosen according to the fusion principle where high frequency coefficients were taken as maximal absolute values and low frequency coefficients were selected by edge detection principle;finally alternating projection algorithm was applied to reconstruct the fusion curve.

首先对原始测井曲线进行多尺度分解，得到不同尺度下的小波低频系数和高频模极大值；然后选用高频系数取绝对值极大、低频系数采用边缘法的融合规则，选取重要的小波系数；最后利用交替投影算法重构融合曲线。

A kind of automatic calculus method is used for the recognition and extraction of skeleton feature,in which some algorithms are used,such as the actinism amendment,fuzzy inference of feature,and edge detection.

运用感光度修正，特征的模糊推理和图像处理的边缘检测等手段，设计一种自动识别骨龄特征的骨龄计算方法。

When a few of local 3D terrain models have been reconstructed respectively,firstly find the common 3D points between every two adjacent local models based on edge detection and image matching,secondly fit the matrix of coordinate transformation employing the technique of separating rotation matrix and translate vector,and lastly register these local 3D models into a single coordinate system.

当恢复出多个局部3D地形模型时，首先基于边缘检测和图像匹配技术提取出相邻局部模型之间的公共数据点，然后采用分离旋转变换和平移矢量的策略拟合出相邻模型之间的坐标转换关系，之后就可以将局部模型统一在同一个坐标系下。

The intima and adventitia edge detection of IVUS images has great significance in the diagnosis and treatment of the coronary artery disease.

IVUS图像内、外膜边缘的提取在冠状动脉疾病的诊断和治疗上有着重要的意义。

Then angular motion compensation and Radon transformation are performed to the ISAR image. A novel search algorithm based on the edge detection is used to divide the target from the sea clutter in the end.

利用ISAR技术得到回波二维像，差波束补偿之后，对其进行Radon变换，再利用该文提出的结合边缘检测技术的搜索算法得到的参数，完成目标与海杂波分离处理。

The algorithm in this paper is based on territory value segmentation of the junction region. The algorithm makes use of edge detection to distill the region of the edge, and conducts domain segmentation, then comminutes the pixels of regional at the junction each region strictly, transfer the similar color to the same region.

本文提出了基于区域交界处的域值分割颜色迁移算法，利用边缘检测方法提取景物边缘交界处区域，进行域值分割，将区域交界处的像素严格分割到所属的区域中，使得属于同一区域的像素迁移同类颜色，最后将已迁移颜色的目标图像均值方差归一化。

In the paper, research begins with these two areas.the algorithm in this paper is based on territory value segmentation of the junction region. the algorithm makes use of edge detection to distill the region of the edge, and conducts domain segmentation, then comminutes the pixels of regional at the junction each region strictly, transfer the similar color to the same region.

本文提出了基于区域交界处的域值分割颜色迁移算法，利用边缘检测方法提取景物边缘交界处区域，进行域值分割，将区域交界处的像素严格分割到所属的区域中，使得属于同一区域的像素迁移同类颜色，最后将已迁移颜色的目标图像均值方差归一化。

After convolving the image model with the edge detection operators of second derivative model, a plane fitting in the least squares sense is used to detect the zero crossing points as edge points.

使用二阶导数型边缘检测算子对图象模型进行卷积后，用均方误差最小的准则对卷积后的图象进行平面拟合，并求出零交点作为图象的边缘点。

Due to its stateoftheart design, high-efficiency object detection and edge detection algorithms, the outstanding performance and good reliability of this system have been fully proved in the practice for more than 2 years.

系统两年多的上线运行证明：该系统在冷轧机出口十分恶劣的环境条件下，可长期连续工作，准确高效地检出带钢孔洞缺陷，具有卓越的检测性能和良好的稳定性。

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。