Attention Modules

Cross-Attention Module

Introduced by Chen et al. in CrossViT: Cross-Attention Multi-Scale Vision Transformer for Image Classification

The Cross-Attention module is an attention module used in CrossViT for fusion of multi-scale features. The CLS token of the large branch (circle) serves as a query token to interact with the patch tokens from the small branch through attention. $f\left(·\right)$ and $g\left(·\right)$ are projections to align dimensions. The small branch follows the same procedure but swaps CLS and patch tokens from another branch.

Papers

Paper Code Results Date Stars