GIS DictionaryBrowse dictionary # A B C D E F G H I J K L M N O P Q R S T U V W X Y Znearest neighbor Share URL [spatial analysis] The feature that is in closest proximity to something.
GIS 字典 浏览字典 URL 已复制共享 URL [数学]一项对栅格数据进行重采样的技术,在栅格数据中,输出栅格内的每个像元的值都使用输入栅格内的最近像元的值进行计算。 最邻近分配法不改变输入图层中任何像元的值;因此它通常用于重采样分类或整型数据(例如土地利用、土壤或森林类型)或辐射值(如来自遥感影像的辐射值)。
Using the Coral Pink Sand Dunes in southern Utah as a model, this study tests nearest neighbor analysis adapted as a method to objectively identify and characterize differences in two dimensional dune patterns within a dune field and to identify changes in dune patterns over time. Reducing ...
Nearest neighbor interpolation is a simple and efficient method used in digital imaging and geographic information systems (GIS) for estimating the value of an unknown data point within a dataset. The technique involves selecting the value of the nearest known data point without considering the values...
The method specifically comprises the following processes: (1) a zero watermark generation process for GIS vector data, wherein the process comprises the steps of space grid generation, nearest neighbor index calculation, zero watermark generation and the like; and (2) a copyright mark extraction ...
Nearest Neighbor Classification (NN) in eCognition By the end of this post, you will create a better land cover classification. All because you learned the highly effective nearest neighbor technique inobject-based image analysis. Or you might just learn something neat that we are going to see...
For some distributions of things-that-might-be-near, and tuned with the right parameters (x, y), this turns out substantially faster (I’ve used it to locate the nearest UK postcode to eachmappinessresponse). Note that it’s a lot simpler and less generic than the BostonGISalternative:...
A generic solution to PostGIS nearest neighborAfter some heavy brainstorming, I have come up with a faster and more generic solution to calculating nearest neighbors than my previous solutions. For the gory details on how I arrived at this solution - please check out the following blog entries...
1) nearest-neighbor method 最近邻体 1. With the aid of GIS software and its nearest-neighbor extension module, population distribution pattern in regular and irregular plots was studied with a revisednearest-neighbor method. 借助地理信息系统软件以及最近邻体分析扩展模块 ,采用修正后的最近邻体公式 ,...
As the group nearest neighbor query has its own feature,three query optimization methods are offered,which include the improved k+1 group nearest neighbor query algorithm,the ellipse-based pruning method and the delayed update method. 基于移动对象增量最近邻居查询(INCNN),提出一种移动对象增量组最近...