\begin{figure}[t!]
\centering
\subfigure[Key]{
\centering
\includegraphics[width=.38\linewidth]{figure/source/experiments/gradcam/key_sd9.png}
\label{fig:gradcam_key}
}\hfil
\subfigure[Door]{
\centering
\includegraphics[width=.38\linewidth]{figure/source/experiments/gradcam/door_new.png}
\label{fig:gradcam_door}
}
% \vspace{-5pt}
\caption{{GradCAM visualization.}}
\label{fig:gradcam}
% \vspace{-10pt}
\end{figure}
