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Like oxygen, the Floridan Aquifer falls into the category of things we can’t see but also cannot live without.One of the largest and most productive aquifers in the nation, it provides drinking water ...
针对AD-Census变换采用固定权重将AD变换代价与Census变换代价合成的双目立体匹配代价法体现像素点区域特征的问题,提出一种基于自适应权重AD-Census变换的双目立体匹配算法。算法首先通过增加相邻像素点的灰度差阈值条件改善十字支撑自适应窗口;然后以每个像素点的十字支撑自适应窗口的最短臂长为自变量,利用指数形式的函数,进行AD变换代价与Census变换代价合成权重的自适应设置。由于像素点...
In the project of China's First National Geographic Conditions Census, millions of sample data have been collected all over the country for interpreting land cover based on remote sensing images, the ...
According to the "Natural priority, Status quo priority" principle of acquisition, the national geography census data has the characteristics of objectivity, impartiality and accuracy. It provides a n...
As the headstream of the Yellow River, the Yangtze River and the Lantsang River, located in the hinterland of Qinghai-Tibet Plateau, Qinghai province is hugely significant for ecosystem as well as for...
The U.S. Census Bureau's Census Explorer is an online, interactive mapping tool that enables members of the media and public to visualize census data at the state, county and neighborhood levels.The w...
In October 2012, as Hurricane Sandy bore down on the densely populated U.S. East Coast, the state of New Jersey needed information fast. State planners and emergency managers turned to U.S. Census Bur...
Urban expansion, particularly the movement of residential and commercial land use to sub-urban areas in metropolitan areas, has been considered as a significant signal of regional economic development...
Image classification will still be a long way in the future, although it has gone almost half a century. In fact, researchers have gained many fruits in the image classification domain, but there is s...
Background: Modifiable lifestyle factors linked to cancer offer great potential for prevention. Previous studies suggest an association between adherence to recommendations on healthy lifestyle and ca...
Utilizing the 5% Public Use Micro Data Sample (PUMS) from the 2000 Census of Population and 2000-2006 waves of the National Health Interview Survey (NHIS), we examine differences in disability, self-r...
We discover and document errors in public use microdata samples ("PUMS files") of the 2000 Census, the 2003-2006 American Community Survey, and the 2004-2009 Current Population Survey. For women and m...
We evaluate three population size estimators, including the post-stratification and lo-gistic regression estimators which has been or will be implemented in the US Census dual system surveys. Conditio...
Remote Sensing and GIS techniques are very helpful and useful tools for decision makers. A particularly important application of remote sensing data is the generation of land use and land cover maps. ...
Several ways of indexing the demography of a school from Canadian census data were devised and compared. In one comparison, statistics based on the complete catchment area of a school were set against...

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