arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1604.02129cs.CV
收藏

野外地平线

Horizon Lines in the Wild

University of Kentucky(肯塔基大学)

Scott Workman, Menghua Zhai, Nathan Jacobs

摘要:

地平线是一个重要的上下文属性的各种图像理解任务。因此,已经提出了许多方法来从单个图像估计其位置。这些方法通常要求图像包含特定的提示,例如消失点,共面圆和规则纹理,从而限制了它们在现实世界中的适用性。我们介绍了一个大型的,现实的评估数据集,地平线在野外(HLW),包含自然图像与标记的地平线。使用这个数据集,我们研究了卷积神经网络直接估计地平线的应用,而不需要任何显式的几何约束或其他特殊的线索。广泛的评估表明,使用我们的CNN,无论是单独使用还是与以前的几何方法结合使用,我们都可以在具有挑战性的HLW数据集和两个现有的基准数据集上获得最先进的结果。

英文摘要:

The horizon line is an important contextual attribute for a wide variety of image understanding tasks. As such, many methods have been proposed to estimate its location from a single image. These methods typically require the image to contain specific cues, such as vanishing points, coplanar circles, and regular textures, thus limiting their real-world applicability. We introduce a large, realistic evaluation dataset, Horizon Lines in the Wild (HLW), containing natural images with labeled horizon lines. Using this dataset, we investigate the application of convolutional neural networks for directly estimating the horizon line, without requiring any explicit geometric constraints or other special cues. An extensive evaluation shows that using our CNNs, either in isolation or in conjunction with a previous geometric approach, we achieve state-of-the-art results on the challenging HLW dataset and two existing benchmark datasets.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑