Exploiting the Earth’s Spherical Geometry to Geolocate Images
Exploiting the Earth’s Spherical Geometry to Geolocate Images
复制标题
利用地球的球形几何形状对图像进行地理定位
DOI:
10.1007/978-3-030-46147-8_1
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
Izbicki M., Papalexakis E.E.
中科院分区:
文献类型:
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作者:
Izbicki M., Papalexakis E.E.
Existing methods for geolocating images use standard classification or image retrieval techniques. These methods have poor theoretical properties because they do not take advantage of the earth’s spherical geometry. In some cases, they require training data sets that grow exponentially with the number of feature dimensions. This paper introduces theMixture of von-Mises Fisher(MvMF) loss function, which is the first loss function that exploits the earth’s spherical geometry to improve geolocation accuracy. We prove that this loss requires only a dataset of size linear in the number of feature dimensions, and empirical results show that our method outperforms previous methods with orders of magnitude less training data and computation.