栅格

Based on survey of existing methods, in this dissertation: aimed to the reliability of stereo image matching in digital photogrammetric, a new matching strategy utilized local continuity constraints encoded by triangulation of the well-defined points is proposed; concerned with the inherent efficient, accuracy and size constraint problems of existing topographic structure extraction approach, an efficient, accurate and large scale data adapted approach based on the combination of vector and raster processes are proposed.

在对国内外这方面工作进行总结分析的基础上，针对数字摄影测量立体像对影像匹配的可靠性问题，首次提出了基于良好匹配点三角形约束下影像匹配传播方法；为了解决以往基于邻域操作的地形结构线提取算法效率低下、结果准确性差和处理数据规模限制等问题，提出了适用于大规模规则格网DEM数据的基于矢量、栅格操作相结合的地形结构线快速提取算法。

The grid is reinforced with welds at the mid point of the intersection of the lattice straps.

在网格片交线的中点上用焊接来增强栅格。

The experimental results show that our method can process a certain obliquity, and have high efficiency. It is a novel method for raster map recognition system.?

实验结果表明该方法在地图小角度倾斜时能正确拼接，拼接方法效率高，速度快，是栅格地图识别输入系统中地图拼接的一种新方法。

Location is defined by an ordered pair of coordinates that identify the location of each unit of geographic space in the raster.

位置由有序的坐标对决定，这些坐标区分栅格数据中的每个地理单元位置。

Sub pixel level edge detection algorithm was adopted to extract accurate inner and outer blade surface point cloud data from its CT images.

使用亚像素级边缘检测算法，从叶片锥束CT图象序列提取叶片的高精度内、外表面点云数据，并进行空间栅格划分，以提高后续计算的效率。

PDF2CAD features ability to accurately reproduces PDF vector geometry in DXF format, preserves curves as splines in DXF output, preserves PDF font text as searchable and editable text in DXF output, option to merge characters into words and one-line text strings, option to outline font text to vector paths in DXF output, option to apply font name mappings during conversion, and ability to extracts embedded raster images to separate TIFF or JPEG files, referenced in the DXF output.

pdf2cad功能的能力，准确地抄录PDF格式向量几何在DXF格式，保留作为样条曲线在DXF格式输出，保存PDF格式的字体的文字作为搜索和编辑文本在DXF格式输出，可以选择合并字符的话和一网上的文字字串，选择Outline字体的文本载体的路径，在DXF格式输出，选择申请字体名称映射转换期间，有能力提取物嵌入式栅格图像分开， TIFF或JPEG文件，引用，在DXF文件输出。

By making a evaluation index system and using AHP to determine the evaluation factorg weights, this paper builds the valuation model of eco-environmental stability of Tibet and uses the overlay function of rasterGIS to make a result map, and finds the distribution characteristics of eco-environmental stability of Tibet based on the analysis of result map.

通过建立西藏生态环境稳定性评价指标体系和利用AHP法确定评价因子权重，构建西藏生态环境稳定性综合评价模型，采用栅格GIS的叠加分析功能生成评价结果图，根据结果对西藏生态环境稳定性的空间分布特点做出分析，并提出相应对策。

With 0~20mm layer of soil organic matter,, total N, available P, available K and pH value, such as soil nutrient content of the data base, the use of ArcGIS 9.0 and the Kriging interpolation grid overlay function, with statistics Methods, drawing a map Shucheng County soil nutrient level. Soil available nutrient was classified into four grades.

以安徽舒城县为例，以0~20mm土壤层的有机质、速效钾、速效磷、PH值等土壤养分含量为数据基础，利用ArcGIS 9.0的Kriging插值和栅格叠加功能，结合地统计学方法，绘制出了舒城县土壤养分等级图。

The new algorithm effectively combines the advantages of ACO and PSO. It adopts the grid method for environment modeling and makes use of the efficiency and succinctness of PSO to obtain the initial distribution of pheromone, reducing the number of iterations and accelerating the convergence. At the same time, by using the parallelizability of ants and distributed parallelized-searching technology, the performance of the algorithm is effectively improved.

该方法有效地结合了粒子群算法和蚁群算法的优点，采用栅格法进行环境建模，利用粒子群算法的快速简洁等特点得到蚁群算法初始信息素分布，以减少迭代次数，加快算法的收敛速度；同时利用蚁群算法之间的可并行性，采用分布式技术实现蚂蚁之间的并行搜索，求解精度高等优点，求精确解。

Based on the algorithm principle of curve,taking the Bezier curve for example,in the condition of VC++ 6.0,through creating the virtual grid and simulating the computer's pels points,with the alternant control technology and the visualization technology,a brand-new visualization teaching demonstration system of computer graphics is developed.

以开发具有更加良好认知意义的教学软件为目标，摒弃了计算机图形学传统的教学方式，从曲线的算法原理出发，以Bezier曲线为例，在VC++6.0的开发环境中，通过建立虚拟栅格和模拟计算机的"像素点"，运用了交互控制技术，动态演示的可视化技术，开发出了一套全新的计算机图形学可视化教学演示系统。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。