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arXiv 1504.06201cs.CV
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高对低和低对高:从深层目标特征进行有效的边界检测及其在高级视觉中的应用

High-for-Low and Low-for-High: Efficient Boundary Detection from Deep Object Features and its Applications to High-Level Vision

University of Pennsylvania(宾夕法尼亚大学);Dartmouth College(达特茅斯学院)

Gedas Bertasius, Jianbo Shi, Lorenzo Torresani

摘要:

目前大多数边界检测系统只依赖于低级别的功能,如颜色和纹理。然而,感知研究表明,人类在判断特定像素是否是边界时采用对象级推理。受这一观察的启发,在这项工作中,我们展示了如何通过利用预训练的对象分类网络中的对象级特征来预测边界。我们的方法可以被看作是一个“高对低”的方法,其中高层次的对象特征通知低层次的边界检测过程。我们的模型在一个既定的边界检测基准上达到了最先进的性能,并且运行效率很高。此外,我们表明,由于我们的边界的语义性质,我们可以使用它们来帮助一些高层次的视觉任务。我们证明,使用我们的边界,我们提高了性能的最先进的方法的语义边界标记,语义分割和对象的建议生成的问题。我们可以把这个过程看作是一个“低对高”的方案,其中低层次的边界帮助高层次的视觉任务。因此,我们的贡献包括边界检测系统,该系统准确,高效,可以很好地推广到多个数据集,并且还可以在三个不同的任务上改进现有的最先进的高级视觉方法。

英文摘要:

Most of the current boundary detection systems rely exclusively on low-level features, such as color and texture. However, perception studies suggest that humans employ object-level reasoning when judging if a particular pixel is a boundary. Inspired by this observation, in this work we show how to predict boundaries by exploiting object-level features from a pretrained object-classification network. Our method can be viewed as a "High-for-Low" approach where high-level object features inform the low-level boundary detection process. Our model achieves state-of-the-art performance on an established boundary detection benchmark and it is efficient to run. Additionally, we show that due to the semantic nature of our boundaries we can use them to aid a number of high-level vision tasks. We demonstrate that using our boundaries we improve the performance of state-of-the-art methods on the problems of semantic boundary labeling, semantic segmentation and object proposal generation. We can view this process as a "Low-for-High" scheme, where low-level boundaries aid high-level vision tasks. Thus, our contributions include a boundary detection system that is accurate, efficient, generalizes well to multiple datasets, and is also shown to improve existing state-of-the-art high-level vision methods on three distinct tasks.

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。

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