Spatial pattern in residential area and influencing factors in oasis landscape;
绿洲景观中居民地空间分布特征及其影响因子分析
Firstly,the characteristics of residential areas on the image are studied.
以烟台市为研究区域,首先分析了居民地的影像特征,研究了居民地和背景地物在TM各波段上的光谱特征及可分性。
A residential area texture description based on the 3×3 region grey deviations is designed, and the Gauss blur is applied to make the residential area in the texture feature image possessing accordant grey value and limited contrast relative to the background area so as to obtain self-adaptive threshold for image segmentation.
设计了一种基于 3× 3区域灰度方差纹理特征的高分辨率遥感影像居民地特征分析算法 ,通过高斯模糊处理提高影像上居民地区域纹理特征一致性的同时 ,加大了其同背景地物纹理特征值的差异 ,并设计了相应的居民地自适应分割阈值求取算法 ,提出了针对居民地与道路提取分离的骨架化分析算
Choosing TM images in 1986 and 2002,through multiband color composition,the spectrum models for extracted information of residential areas are established,and the distributing maps of residential areas in 1986 and 2002 are made.
6两个时期的TM影像,经过多波段彩色合成处理,在分析居民地等多种地物的光谱特征及谱间特征的基础上,建立了居民地信息提取的光谱模型,提取并制作了两个时段的居民地分布图。
For automatic recognition of residential areas filled with hatched lines in color scanned topographical maps,Gabor filters are firstly used to detect hatched lines with their texture features and find the candidate residential areas.
为自动识别彩色扫描地形图中使用晕线填充绘制的街区式居民地,首先通过Gabor滤波检测晕线得到居民地候选区;然后在候选区中利用曲线跟踪算法识别居民地轮廓;最后进行线性插值连接和几何校正,以解决居民地轮廓不闭合和道路两侧居民地整齐排列问题。
A new method is proposed for automated recognzing the change types of residential areas using topological relations between new and old boundaries of residential areas.
提出了一种利用空间拓扑模型自动检测居民地变化类型的方法。
The imagery structures of residences on the TM imagery are discussed and residences of TM multi-bands are extracted and contrasted.
研究了城镇与乡村居民地在TM图像上的影像特征,并对多个波段影像进行了居民地特征提取对比分析。
Study on Generalization Algorithms of Settlement for the Representation of Mobile Map;
面向移动地图表达的居民地地图综合算法研究
In this paper we probe into the efficiency of part of generalization algorithms on settlements,and test the usability of them.
本文以居民地综合算法为例,探讨了部分算法在移动环境中的执行效率,并进行了可用性验证。
And then explains the fundamental principle of habitation’s multi scale display in electronic map that select a certain number of resident features,according to the sort and classification of the habitation .
探讨了多尺度的含义 ,并将居民地多尺度表达的研究限定在详细程度的变化上 ;阐述了电子地图中居民地多尺度表达的基本原理 ,即在保持原图的分布特征和疏密对比的情况下按照居民地自身的分类分级和重要性程度进行一定数量的取舍 ;建立了居民地多尺度显示的模型 ,根据此模型提出了采用二级邻近点判别法结合Voronoi图进行居民地要素的显示等级设置的方法 ,并进行了相应的实验 ,结果表明该方法对居民地的分布特征、密度对比和延伸方向均能较好的保
This paper probes into the contour features of settlement place in remote sensing images under different resolutions, and analyzes the morphological evolution characters of the blocks in settlement place in remote sensing images.
探讨了不同分辨率遥感影像居民地的轮廓特征,分析了遥感影像街区居民地的形态演化特征。