Person re-identification (re-id) suffers from a serious occlusion problem
when applied to crowded public places. In this paper, we propose to retrieve a
full-body person image by using a person image with occlusions. This differs
significantly from the conventional person re-id problem where it is assumed
that person images are detected without any occlusion. We thus call this new
problem the occluded person re-identitification. To address this new problem,
we propose a novel Attention Framework of Person Body (AFPB) based on deep
learning, consisting of 1) an Occlusion Simulator (OS) which automatically
generates artificial occlusions for full-body person images, and 2) multi-task
losses that force the neural network not only to discriminate a person's
identity but also to determine whether a sample is from the occluded data
distribution or the full-body data distribution. Experiments on a new occluded
person re-id dataset and three existing benchmarks modified to include
full-body person images and occluded person images show the superiority of the
proposed method.

本文提出了一种基于深度学习的 Attention Framework of Person Body (AFPB) 方法，其中包括自动生成人体遮挡的 Occlusion Simulator (OS) 和多任务损失，旨在解决在人群密集的公共场所中遭遇的遮挡问题，该新问题称为遮挡人物重新识别问题，实验表明该方法优于现有的三个基准方法。