\documentclass[aspectratio=169]{beamer}
\usetheme{Warwick}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{multirow}
\usepackage{tikz}
\usepackage{tikzsymbols}
\usepackage{datetime}
\usepackage[style=ieee]{biblatex}
\renewcommand*{\bibfont}{\scriptsize}
\title{Title}
\author{
Author 1 \inst{1} \and
Author 2 \inst{1} \and
Author 3 \inst{2} \and
Author 4 \inst{2} \and
Author 5 \inst{1} \and
Author 6 \inst{3}
}
\institute{
\inst{1} University of Warwick \and
\inst{2} Institution 1 \and
\inst{3} Institution 2
}
\date{\shortdate{\formatdate{18}{06}{2023}}}
\titlegraphic{
\makebox{
\includegraphics[height=3.5em,keepaspectratio]{images/warwick-logo.png}
\hspace{1em}
\includegraphics[height=3.5em,keepaspectratio]{images/ford-logo.png} % Remove this if not affiliated with Ford.
\hspace{1em}
\includegraphics[height=3.5em,keepaspectratio]{images/glasgow-logo.png} % % Remove this if not affiliated with UoG.
}
}
\logo{\includegraphics[height=4em, keepaspectratio]{images/CVPR.png}} % Comment this if not wanted.
\addbibresource{ref.bib}
\begin{document}
\captionsetup[figure]{labelfont={bf}, name={Fig.}}
\frame{\titlepage}
\begin{frame}{Outline}
\tableofcontents[hideallsubsections]
\end{frame}
\input{S1/s1.tex}
\input{S2/s2.tex}
\section*{Thanks}
\begin{frame}
\frametitle{}
\centering\LARGE Thanks!
\end{frame}
\begin{frame}[allowframebreaks]
\frametitle{References}
\printbibliography
\end{frame}
\end{document}
