3Sandnes F E.Determining the Geographical Location of Image Scenes Based on Object Shadow Lengths[J].Journal of Signal Processing Systems,2011,65(1):35-47.
4Junejo I N,Foroosh H.Estimating Geo-temporal Location of Stationary Cameras Using Shadow Trajectories[M].Computer Vision-ECCV 2008.[S.l.]:Springer Berlin Heidelberg,2008:318-331.
5Wu L,Cao X.Geo-location Estimation from Two Shadow Trajectories[C]//20131EEE Conference on Computer Vision and Pattern Recognition.[S.l.]:IEEE,2010:585-590.