基于注意力机制的跨分辨率行人重识别

Cross-resolution person re-identification based on attention mechanism

行人图像分辨率的变化对现有的行人重识别方法带来了很大的挑战。针对这一问题,提出了一种新的跨分辨率行人重识别方法。该方法从两方面解决分辨率变化带来的识别困难:一方面通过通道注意力机制和空间注意力机制捕捉人物特征获取局部区域;另一方面通过核动态上采样模块恢复任意分辨率图像的局部区域信息。为了验证所提方法的有效性,在Market1501、CUHK03和CAVIAR三个公开数据集上开展了对比实验,实验结果表明:所提方法取得了最佳性能。

The resolution variation of person images poses great challenges to current person re-identification methods.To address this problem,this paper presents a cross-resolution person re-identification method.This method solves the resolution variation from two aspects.On the one hand,the spatial and channel attention mechanisms are utilized to capture person features and obtain local region;On the other hand,local information of any resolution image is recovered by the nuclear dynamic upsampling module.Comparative experiments have been conducted to verify the effectiveness of the proposed method against state-of-the-art methods on Market1501,CUHK03,and CAVIAR person re-identification datasets.The experimental results show that the proposed method has the best performance.