arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.03084cs.CV
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身份识别与上下文学习相结合的人物识别方法

Unifying Identification and Context Learning for Person Recognition

CUHK-SenseTime Joint Lab, The Chinese University of Hong Kong(香港中文大学-商汤科技联合实验室,香港中文大学)

Qingqiu Huang, Yu Xiong, Dahua Lin

摘要:

尽管人脸识别技术取得了巨大的成功,但在不受约束的环境下识别人仍然具有挑战性。诸如纵断面图、不利的照明和遮挡等问题可能会导致相当大的困难。以前的作品试图通过利用背景来解决这个问题,例如衣服和社会关系。虽然这些方法有很好的改进效果,但它们通常局限于两个重要方面,即依赖简单的语义学来组合不同的线索,以及将语境的构建与人的身份分离开来。在这项工作中,我们的目标是超越这些限制,并提出了一个新的框架,利用上下文的人识别。特别是,我们提出了一个区域注意力网络,学习自适应地结合视觉线索与实例相关的权重。我们还开发了一个统一的配方,其中的社会背景是随着人们的身份推理学习。这些模型大大提高了在无约束环境中处理复杂上下文关系时的鲁棒性。在两个大的数据集,PIPA和演员在电影(CIM),在这项工作中提出的一个新的数据集,我们的方法始终达到国家的最先进的性能在多个评估政策。

英文摘要:

Despite the great success of face recognition techniques, recognizing persons under unconstrained settings remains challenging. Issues like profile views, unfavorable lighting, and occlusions can cause substantial difficulties. Previous works have attempted to tackle this problem by exploiting the context, e.g. clothes and social relations. While showing promising improvement, they are usually limited in two important aspects, relying on simple heuristics to combine different cues and separating the construction of context from people identities. In this work, we aim to move beyond such limitations and propose a new framework to leverage context for person recognition. In particular, we propose a Region Attention Network, which is learned to adaptively combine visual cues with instance-dependent weights. We also develop a unified formulation, where the social contexts are learned along with the reasoning of people identities. These models substantially improve the robustness when working with the complex contextual relations in unconstrained environments. On two large datasets, PIPA and Cast In Movies (CIM), a new dataset proposed in this work, our method consistently achieves state-of-the-art performance under multiple evaluation policies.

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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