Mapping the World Population One Building at a Time
2017
Tiecke, Tobias G. | Liu, Xianming | Zhang, Amy | Gros, Andreas | Li, Nan | Yetman, Gregory | Kilic, Talip | Murray, Siobhan | Blankespoor, Brian | Prydz, Espen B. | Dang, Hai-Anh H.
High resolution datasets of population density which accurately map sparsely distributed human populations do not exist at a global scale. Typically, population data is obtained using censuses and statistical modeling. More recently, methods using remotely-sensed data have emerged, capable of effectively identifying urbanized areas. Obtaining high accuracy in estimation of population distribution in rural areas remains a very challenging task due to the simultaneous requirements of sufficient sensitivity and resolution to detect very sparse populations through remote sensing as well as reliable performance at a global scale. Here, the authors present a computer vision method based on machine learning to create population maps from satellite imagery at a global scale, with a spatial sensitivity corresponding to individual buildings and suitable for global deployment.
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