【论文阅读】Further Non-local and Channel Attention Networks for Vehicle Re-identification

问题: 类间差异小，类内差异大
提出：双分支自适应注意网络

在视觉皮层双流理论的启发下， 基于non-local和channel关系 ，构建了一个双分支FNC网络来捕获多种有用信息
(消除背景的影响)
Further Non-local and Channel attention (FNC) is constructed to simulate two-stream theory of visual cortex
提出了一种有效的 注意力融合方法 ，充分模拟了空间注意力和信道注意力的影响。

Proposed method

【论文阅读】Further Non-local and Channel Attention Networks for Vehicle Re-identification
Then, we change the last spatial down-sampling operation stride from 2 to 1 to provide a large spatial view for the spatial attention module, thereby capturing highly detailed spatial correlations. ？？？？
【论文阅读】Further Non-local and Channel Attention Networks for Vehicle Re-identification

The spatial attention block (SAB)

【论文阅读】Further Non-local and Channel Attention Networks for Vehicle Re-identification
正常的non-local结构

通道注意力结构

【论文阅读】Further Non-local and Channel Attention Networks for Vehicle Re-identification
SAB的作用不大