arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.01882cs.CV
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基于无监督领域自适应的文物单阶段识别方法

An Unsupervised Domain Adaptation Scheme for Single-Stage Artwork Recognition in Cultural Sites

University of Catania(卡塔尼亚大学);National Research Council(国家研究委员会)

Giovanni Pasqualino, Antonino Furnari, Giovanni Signorello, Giovanni Maria Farinella

摘要:

使用从用户的角度(第一人称视觉)获取的图像识别文化场所中的艺术品,可以为访问者和场所管理者构建有趣的应用程序。然而,目前的目标检测算法工作在完全监督的设置需要大量的标记数据进行训练,其收集需要大量的时间和高成本,以达到良好的性能。使用从文化遗址的3D模型生成的合成数据来训练算法可以降低这些成本。另一方面,当用真实图像测试这些模型时,由于真实图像和合成图像之间的差异,观察到性能显著下降。在这项研究中,我们考虑的问题,无监督领域自适应的目标检测在文化遗址。为了解决这个问题,我们创建了一个新的数据集,其中包含16件不同艺术品的合成和真实图像。因此,我们研究了不同的领域自适应技术的基础上,一阶段和两阶段的目标检测器,图像到图像的翻译和功能对齐。基于单级检测器对所考虑的设置中的域偏移更鲁棒的观察,我们提出了一种基于RetinaNet和特征对齐的新方法,我们称之为DA-RetinaNet。所提出的方法取得了更好的结果比建议的数据集和城市景观的比较方法。为了支持该领域的研究,我们在以下链接https://iplab.dmi.unict.it/EGO-CH-OBJ-UDA/上发布了数据集,并在https://github.com/fpv-iplab/DA-RetinaNet上发布了拟议架构的代码。

英文摘要:

Recognizing artworks in a cultural site using images acquired from the user's point of view (First Person Vision) allows to build interesting applications for both the visitors and the site managers. However, current object detection algorithms working in fully supervised settings need to be trained with large quantities of labeled data, whose collection requires a lot of times and high costs in order to achieve good performance. Using synthetic data generated from the 3D model of the cultural site to train the algorithms can reduce these costs. On the other hand, when these models are tested with real images, a significant drop in performance is observed due to the differences between real and synthetic images. In this study we consider the problem of Unsupervised Domain Adaptation for object detection in cultural sites. To address this problem, we created a new dataset containing both synthetic and real images of 16 different artworks. We hence investigated different domain adaptation techniques based on one-stage and two-stage object detector, image-to-image translation and feature alignment. Based on the observation that single-stage detectors are more robust to the domain shift in the considered settings, we proposed a new method which builds on RetinaNet and feature alignment that we called DA-RetinaNet. The proposed approach achieves better results than compared methods on the proposed dataset and on Cityscapes. To support research in this field we release the dataset at the following link https://iplab.dmi.unict.it/EGO-CH-OBJ-UDA/ and the code of the proposed architecture at https://github.com/fpv-iplab/DA-RetinaNet.

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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