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Estimating camera parameters from starry night photographs
Computational Visual Media ( IF 17.3 ) Pub Date : 2020-11-06 , DOI: 10.1007/s41095-020-0198-0
Naoto Ishikawa , Yoshinori Dobashi

We propose an efficient, specific method for estimating camera parameters from a single starry night image. Such an image consists of a collection of disks representing stars, so traditional estimation methods for common pictures do not work. Our method uses a database, a star catalog, that stores the positions of stars on the celestial sphere. Our method computes magnitudes (i.e., brightnesses) of stars in the input image and uses them to find the corresponding stars in the star catalog. Camera parameters can then be estimated by a simple geometric calculation. Our method is over ten times faster and more accurate than a previous method.



中文翻译:

从繁星点点的夜晚照片中估算相机参数

我们提出了一种有效的特定方法,用于从单个繁星点点的夜景图像中估算相机参数。这样的图像由代表恒星的圆盘集合组成,因此对普通图片的传统估计方法不起作用。我们的方法使用一个数据库,即恒星目录,该数据库存储恒星在天球上的位置。我们的方法计算输入图像中恒星的大小(即亮度),并使用它们在恒星目录中找到相应的恒星。然后可以通过简单的几何计算来估计摄像机参数。我们的方法比以前的方法快十倍,而且更准确。

更新日期:2020-11-06
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