查询词典 histogram

The improvements consist of two parts: 1 generalizing the PDE based approach to contrast enhancement to adapt to any specified stretch function for global and local contrast enhancement; 2 proposing a piecewise linear stretch function design method to achieve better histogram equalization.

改进包含两个方面：1 修改并推广了原有的基于PDE的灰度增强方法，使之可适用于任何设定的灰度拉伸函数；2给出了一种通用的分段线性拉伸函数设计方法，它较采用累积直方图作为灰度变换函数可达到更好的直方图均衡化效果。

is that the best registration technique requires using EHD measure as similarity measure, selecting regular or triangular control points according to practical situation, applying the new one-to-one stretch mapping method, utilizing the information of subtraction histogram for gray level registration.

包括选取EHD准则作为相似性准则，依实际情况选择规则控制点和三角网格控制点，提出一对一映射拉伸策略和基于减影直方图特性的灰度矫正方法。

The stress range histogram was used to estimate the effective root-mean-square stress range.

应力范围直方图可用作估算等效均方根应用力范围。

Aiming at the position characteristic of constant spacing, the method of obtaining the center line of crop rows is researched. The improved pixel lateral histogram algorithm for extracting the center of crop row is designed.

针对条播作物的行距基本恒定，条播作物都成行排列的位置特征，本文着重研究了作物中心行的提取方法，设计了改进的像素直方图法提取作物中心行的算法。

According to the position feature of drilled crops that were regularly sown as a constant row space, the pixel-histogram method was used to determine the central line and the width of crop row. As a result, weeds between crop rows were detected.

根据条播作物小麦作物行的间距相对固定等位置特征，利用植物像素直方图法确定作物行的中心线和行宽，并识别行间杂草。

The spraying control system aiming at weed based on machine vision was designed and developed. The index of 2G-R-B is used for segmentation and the method of improved pixel lateral histogram is used for extracting the center of crop row,the method of threthold is also used for identificating between-row weed and BP ANN based on fratal and texture is used for identificating in-row weed. PLC correspondence and performing procedure is desi -gned and developed.

设计和开发了基于机器视觉的麦田除草剂对准喷药控制系统，该系统的视觉子系统首先用过绿的2G-R-B进行植物与土壤背景的分割，其次用改进像素直方图法识别作物中心行，用阈值法识别行间杂草区域，用BP神经网络基于分形和纹理的共同特征识别行内杂草区域，设计并开发了计算机与PLC的通信程序，设计了PLC的运行程序。

Image analysis ; Histogram ; Real-time analysis ; Correlation coefficient ; Sample

图像分析；直方图；实时分析；相关系数；采样

According to the hue and a certain scalar quantity, it puts forward a histogram-based bi-threshold iterative method to segment chromatic image, which can enormously expand the theory and application of gray-level image processing.

提出了以色调和构造标量为特征进行基于直方图的双阈值彩色图像自动迭代分割算法。从而极大地扩展了灰度图像处理的理论和应用。

Production Process Control and Quality Control is the main scope for application of statistics, which is about monitoring the processes of production by using statistical methods, thus achieves the guarantee and the improvement of quality. The commonly used statistical methods include Control Diagram, Pareto Diagram, Causes and Effects Diagram, Scatter Diagram, Histogram and so on.

生产过程控制和质量管理是统计学的重要应用领域，主要内容是应用统计方法对过程中的各个阶段进行监控，从而达到保证与改进质量的目的，常用的统计方法有控制图、排列图、因果图、散布图、直方图等。

Background analysis of anomaly part consists of data partition, environmental correction, surface analysis. Anomaly analysis part consists of cluster analysis, factor analysis, correspondence analysis. Graph plotting part consists of histogram, cross section drawing, clustering spectral pattern, 2-dimensinoal factor scattergram.

其中数据预处理包括：网格化、生成等值线、数据检查、九点圆滑、滑动平均：异常背景分析包括：数据分区、环境校正、趋势面分析：异常分析包括：聚类分析、对应分析、因子分析；图形绘制包括：直方图、因子平面散点图、聚类谱系图、剖面图。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。