Localization of points of interest from georeferenced and oriented photographs
Localization of points of interest from georeferenced and oriented photographs
复制标题
根据地理参考和定向照片定位兴趣点
DOI：
10.1145/2509230.2509236
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
B. Thomee
中科院分区：
文献类型：
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作者：
B. Thomee
相机的内置GPS设备自动分配给照片的地理坐标记录了照片拍摄的位置，而不是所描绘的场景中主要兴趣点的位置。虽然在准确定位这些兴趣点的实际位置方面取得了科学进展，但为了估计它们的地理坐标，这些方法要么采用粗略的基于分组的方法，要么采用昂贵的基于内容的方法。在本文中，我们提出了一种新的技术，它结合了现代摄像机提供的罗盘方向，允许我们通过分析聚焦于同一场景的摄像机产生的视线之间的交点来计算兴趣点的最可能位置。由于提供地理坐标和指南针方向的数字设备的精度可能会有所不同，因此我们在估计位置时会考虑这些不精确的因素。
The geographic coordinates automatically assigned to photos by the built-in GPS devices of cameras register the location a photo was taken at, rather than the location of the main point of interest within the depicted scene. While scientific advances have been made in the efforts to accurately locate the actual positions of such points of interest, these resort to either crude clustering-based approaches or expensive content-based approaches in order to estimate their geographic coordinates. In this paper we propose a novel technique that incorporates the compass direction supplied by modern cameras, allowing us to compute the most probable locations of the point of interest by analyzing intersections between the lines of sight originating from the cameras focusing on the same scene. Since the accuracy of the digital devices that supply the geographic coordinates and the compass direction can vary, we take these imprecisions into account when estimating the location.