A Simple Content-based Strategy for Estimating the Geographical Location of a Webcam
Journal article, Peer reviewed
Postprint version. the original publication is available at www.springerlink.com, u r l: http://dx.doi.org/10.1007/978-3-642-15702-8_4
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Original versionSandnes, F.E. (2010). A Simple Content-based Strategy for Estimating the Geographical Location of a Webcam. Lecture Notes in Computer Science = Lecture notes in artificial intelligence, 6297, 36-45 http://dx.doi.org/10.1007/978-3-642-15702-8_4
This study proposes a strategy for determining the approximate geographical location of a webcam based on a sequence of images taken at regular intervals. For a time-stamped image sequence spanning 24 hours the approximate sunrise and sunset times are determined by classifying images into day and nighttime images based on the image intensity. Based on the sunrise and sunset times both the latitude and longitude of the webcam can be determined. Experimental data demonstrates the effectiveness of the strategy.