arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.00350cs.CV
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运动不变性下的视觉特征学习

Learning Visual Features Under Motion Invariance

University of Siena(锡耶纳大学)

Alessandro Betti, Marco Gori, Stefano Melacci

摘要:

人类不断地接触到具有自然时间结构的视觉数据流。然而,大多数成功的计算机视觉算法都是在图像级工作的,完全丢弃了运动所携带的宝贵信息。在本文中,我们声称,处理视觉流自然会导致制定运动不变性原理,这使得一个新的学习理论,起源于变分原理的建设,就像在物理学。这种原则性的方法非常适合于讨论视觉中出现的一些有趣的问题,并且它为在视网膜上发现卷积滤波器提供了一个适定性的计算方案。与需要大规模监督的传统卷积网络不同,所提出的理论为视频信号的无监督处理提供了一个真正的新场景,其中特征在具有运动不变性的多层架构中提取。虽然该理论能够实现新颖的计算机视觉系统,但它也揭示了基于信息的原则在推动可能的生物解决方案方面的作用。

英文摘要:

Humans are continuously exposed to a stream of visual data with a natural temporal structure. However, most successful computer vision algorithms work at image level, completely discarding the precious information carried by motion. In this paper, we claim that processing visual streams naturally leads to formulate the motion invariance principle, which enables the construction of a new theory of learning that originates from variational principles, just like in physics. Such principled approach is well suited for a discussion on a number of interesting questions that arise in vision, and it offers a well-posed computational scheme for the discovery of convolutional filters over the retina. Differently from traditional convolutional networks, which need massive supervision, the proposed theory offers a truly new scenario for the unsupervised processing of video signals, where features are extracted in a multi-layer architecture with motion invariance. While the theory enables the implementation of novel computer vision systems, it also sheds light on the role of information-based principles to drive possible biological solutions.

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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