從USPTO的專利公告資料看到：Google剛剛獲得一個可以透過拍攝地標景象取得所在地理位置的專利，可以讓使用者透過手機拍攝附近的地理景象、特殊地標等，再將影像上傳至Google後端伺服器中進行資料比對，即可比對出接近的座標值回傳給使用者。
US8,131,118
Title : Inferring locations from an image
Filing Date : 2008.1.31.
Issue Date : 2012.3.6.
Abstract :
Systems and methods are disclosed for determining the location where an image was captured. In general, a device such as a smartphone may capture one or more images from a location, such as images of buildings, street signs and the like, and a central system may compare the submitted images to images in an image library to identify matches. The location of the match may then be provided back to the smartphone.
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