arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1408.0872cs.CV
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开集人员重新识别

Open-set Person Re-identification

Center for Biometrics and Security Research(生物识别与安全研究中心);Institute of Automation, Chinese Academy of Sciences(中国科学院自动化研究所)

Shengcai Liao, Zhipeng Mo, Jianqing Zhu, Yang Hu, Stan Z. Li

摘要:

人的再识别是机器学习算法和视频监控应用的研究热点。人物重新识别的任务是确定图库中的哪个人与探针图像具有相同的身份。这个任务基本上假设探测图像的主体属于图库,也就是说,图库包含这个人。然而,在实际应用中,例如在视频中搜索嫌疑人,这种假设通常不成立。在本文中,我们考虑的开放集的人重新识别问题,其中包括两个子任务,检测和识别。检测子任务是确定图库中是否存在探测对象,识别子任务是确定图库中的哪个人与接受的探测对象具有相同的身份。我们提出了一个数据库,收集从视频监控设置的6个摄像头,200人和7,413图像分割。基于此数据库,我们开发了一个基准协议下的开放集的人重新识别的情况下的性能进行评估。几个流行的度量学习算法的人重新识别已被评估为基线。从基线性能,我们观察到,开放集的人的重新识别问题仍然在很大程度上没有得到解决,因此需要进一步的关注和努力。

英文摘要:

Person re-identification is becoming a hot research for developing both machine learning algorithms and video surveillance applications. The task of person re-identification is to determine which person in a gallery has the same identity to a probe image. This task basically assumes that the subject of the probe image belongs to the gallery, that is, the gallery contains this person. However, in practical applications such as searching a suspect in a video, this assumption is usually not true. In this paper, we consider the open-set person re-identification problem, which includes two sub-tasks, detection and identification. The detection sub-task is to determine the presence of the probe subject in the gallery, and the identification sub-task is to determine which person in the gallery has the same identity as the accepted probe. We present a database collected from a video surveillance setting of 6 cameras, with 200 persons and 7,413 images segmented. Based on this database, we develop a benchmark protocol for evaluating the performance under the open-set person re-identification scenario. Several popular metric learning algorithms for person re-identification have been evaluated as baselines. From the baseline performance, we observe that the open-set person re-identification problem is still largely unresolved, thus further attention and effort is needed.

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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