HiFT : Hierarchical Feature Transformer for Aerial Tracking Ziang Cao† , Changhong Fu†,*, Junjie Ye† , Bowen Li† , and Yiming Li‡ HiFT: Hierarchical Feature Transformer for Aerial Tracking Most existing Siamese-based tracking methods execute the classification and regression of the target object based on the similarity maps. However, they either employ a single map from the last convolutional la..