Vehicle Attribute Recognition for Normal Targets and Small Targets Based on Multitask Cascaded Network

Table 4

The main structures of nine networks.

Method	Structure
CNN	One stage + exhaustive sliding window + CNN + SVM + single loss
Fast R-CNN	One stage + selective search + CNN + softmax + multi loss
Faster R-CNN	One stage + RPN + CNN + softmax + multi loss
CNN + CNN	Two stages + CNN + CNN
IFR-CNN + CNN	Two stages + IFR-CNN + CNN
MC-CNN	Two stages + faster R-CNN + CNN
MC-CNN-P	MC-CNN + PReLU
MC-CNN-F	MC-CNN + Focal Loss
MC-CNN-NT	MC-CNN + PReLU + Focal Loss