归一化建设指数(Normalized Difference Built-up Index) NDBI=(band5-band4)/(band5+band4),【-1,1】,大于0为城市建设信息,小于0为非城市建设信息。归一化植被指数(Normalized Difference vegetation Index) NDVI=(band4-band3)/(band4+band3),【-1,1】,(0,0.1)有植被覆盖,(0.5,1)植被生长状态良好 ...
Although the normalized difference built-up index (NDBI) is useful to map urban built-up areas, it still has some limitations. This study sought to improve the NDBI by using a semiautomatic segmentation approach. The proposed approach had more than 20% higher overall accuracy than the original...
(Modified Normalized Difference Built-up Index,MNDBI),并针对建成区的指数提取结果提出了相应的后处理框架,主要包括聚类去裸土和形态学偏重建两步.后处理中,第一步可以去除建成区提取结果中混杂的裸土,提高建成区提取的正确率,第二部可以减少提取结果中建成区的漏分,降低漏检率.实验结果显示,MNDBI相对于现有的...
1)Normalized Multi-band Drought Index归一化多波段指数 2)normalized difference index归一化指数 1.Grain milling quality of rice were significantly negative correlated to ratio index and normalized difference index at maturity stage, especially to the ratio index and normalized index of 1650 nm and 660...
Normalized Difference Built-up Index (NDBI), Modified Normalized Difference Water Index (MNDWI) and Soil Adjusted Vegetation Index (SAVI) to represent three major urban land use/cover classes, i. e. , built-up land, water body and vegetation, respectively. The three index images are generated ...
In this paper we propose a new method based on Normalized Difference Built-up Index (NDBI) to automate the process of mapping built-up areas. It takes advantage of the unique spectral response of built-up areas and other land covers. Built-up areas are effectively mapped through arithmetic ...
(Modified Normalized Difference Built-up Index,MNDBI),并针对建成区的指数提取结果提出了相应的后处理框架,主要包括聚类去裸土和形态学偏重建两步.后处理中,第一步可以去除建成区提取结果中混杂的裸土,提高建成区提取的正确率,第二部可以减少提取结果中建成区的漏分,降低漏检率.实验结果显示,MNDBI相对于现有的...
Landsat satellite images were used for the analysis of normalized difference built-up index (NDBI) and land surface temperature (LST) mapping. This study reveals that the percentage of built-up area in Kolkata City has been increasing over time and has very high positive relationship with the ...
Normalized Difference Built-Up Index (NDBI), Urban Index (UI) and Normalized Difference Vegetation Index (NDVI) are the spectral indices produced from Landsat OLI band covering Short Wave Infrared (SWIR) wavelength, visible Red (R) and Near Infrared (NIR) areas that can be revealed by ...
The identification of land-use change is carried out using a remote sensing approach, namely the Normalized Difference Built-Up Index (NDBI). Landslide potential is determined based on the relationship between land use and runoff coefficient from 2007 to 2019. The results showed there had been an...