You can use some of the already existing commands to add the information; for example, you can say something like
\date{\today\\[2em]
{\footnotesize Acknowledgement: This work was performed within the
Mathematics and networks
(molten) project, which is supported by the Engineering
and Physical Sciences Research Council and the Research
Councils UK Digital Economy programme, with grant ref.
EPIxxx.}
}
So this may not be what you need since I don't know where you are starting:
\documentclass{beamer}
\title{Title}
\author{Me}
\begin{document}
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{teitl}}
\frame[label=title]{\titlepage}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{tudalen}}
\begin{frame}{Frame Title}
This is a regular page.
\end{frame}
\end{document}
Update
The only way I can currently figure to do this is as follows:
\documentclass{beamer}
\usetheme{Atlanta}
\makeatletter
\defbeamertemplate*{frametitle}{mytitle}[1][left]
{
\ifbeamercolorempty[bg]{frametitle}{}{\nointerlineskip}%
\@tempdima=\textwidth%
\advance\@tempdima by\beamer@leftmargin%
\advance\@tempdima by\beamer@rightmargin%
\begin{beamercolorbox}[sep=0.3cm,#1,wd=\the\@tempdima]{}
\usebeamerfont{frametitle}%
\vbox{}\vskip-1ex%
\if@tempswa\else\csname beamer@fte#1\endcsname\fi%
\strut\insertframetitle\strut\par%
{%
\ifx\insertframesubtitle\@empty%
\else%
{\usebeamerfont{framesubtitle}\usebeamercolor[fg]{framesubtitle}\insertframesubtitle\strut\par}%
\fi
}%
\vskip-1ex%
\if@tempswa\else\vskip-.3cm\fi% set inside beamercolorbox... evil here...
\end{beamercolorbox}%
}
\makeatother
\setbeamertemplate{footline}{}
\setbeamertemplate{frametitle}[mytitle]
\title{Title}
\author{Me}
\begin{document}
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{teitl}}
% plain removes the navigation bar etc.
\frame[plain]{\titlepage}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{tudalen}}
\begin{frame}{Frame Title}
This is a regular page.
\end{frame}
\end{document}
Update to Update
\documentclass[font=9pt]{beamer}
\usetheme{Atlanta}
\makeatletter
\defbeamertemplate*{frametitle}{mytitle}[1][left]
{
\ifbeamercolorempty[bg]{frametitle}{}{\nointerlineskip}%
\@tempdima=\textwidth%
\advance\@tempdima by\beamer@leftmargin%
\advance\@tempdima by\beamer@rightmargin%
\begin{beamercolorbox}[sep=0.3cm,#1,wd=\the\@tempdima]{}
\usebeamerfont{frametitle}%
\vbox{}\vskip-1ex%
\if@tempswa\else\csname beamer@fte#1\endcsname\fi%
\strut\insertframetitle\strut\par%
{%
\ifx\insertframesubtitle\@empty%
\else%
{\usebeamerfont{framesubtitle}\usebeamercolor[fg]{framesubtitle}\insertframesubtitle\strut\par}%
\fi
}%
\vskip-1ex%
\if@tempswa\else\vskip-.3cm\fi% set inside beamercolorbox... evil here...
\end{beamercolorbox}%
}
\makeatother
\setbeamertemplate{footline}{}
\setbeamertemplate{frametitle}[mytitle]
\setbeamertemplate{headline}{}% eliminate headline so background is revealed
\definecolor{myblue}{rgb}{0.4, 0.6, 0.8}% adjust as desired
\setbeamercolor{structure}{fg=myblue}
\defbeamertemplate*{title page}{customized}[1][]
{
\usebeamerfont{title}\inserttitle\par
\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par
\bigskip
\usebeamerfont{author}\insertauthor\par
\usebeamerfont{institute}\insertinstitute\par
\usebeamerfont{date}\insertdate\par
\usebeamercolor[fg]{titlegraphic}\inserttitlegraphic
}
%\usepackage{Warsaw}
%\usepackage{beamercolorthemeyellowjacket}
\usefonttheme{serif}
\usepackage{amsmath,amssymb,amsthm,amsfonts}
\usepackage{algorithmic,algorithm}
\usepackage{graphicx,ifpdf}
\usepackage{mathrsfs}
\usepackage{natbib}
\usepackage{dsfont}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage{times}
\usepackage{verbatim}
\usepackage{multirow}
\usepackage{multicol}
\usepackage{algorithm}
\usepackage{algorithmic}
\usepackage{booktabs}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{wasysym}
\usepackage{tabularx}
\usepackage{tabulary}
\def\Ze{\mathbb{Z}}
\def\Qe{\mathbb{Q}}
\def\Re{\mathbb{R}}
\def\Ne{\mathbb{N}}
\def\E{\mathbb{E}}
%\def\Pr{{\rm Pr}}
\def\newblock{}
\DeclareMathOperator*{\wg}{\wedge}
\newcommand{\set}[1]{\left\{ #1 \right\}}
\newtheorem{thm}{Theorem}
\newtheorem{lem}{Lemma}
\newtheorem{obs}{Observation}
\newtheorem{prop}{Proposition}
\newtheorem{cor}{Corollary}
\newtheorem{dfn}{Definition}
\newtheorem{asp}[theorem]{Assumption}
\newcommand{\rv}{\mathcal{T}}
\newcommand{\rr}{\mathbb{R}}
\newcommand{\zz}{\mathbb{Z}}
\newcommand{\nn}{\mathbb{N}}
\newcommand{\rw}{W}
\newcommand{\rc}[1]{\textcolor{Black}{#1}}
\newcommand{\bc}[1]{\textcolor{Black}{#1}}
\title[Presentation ] % (optional, use only with long paper titles)
{Presentation Title}
\institute[my institute]{
}
\author[my name ] % (optional, use only with lots of authors)
{my name}
\date[]
\begin{document}
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{blue}}
\frame[plain]{\titlepage}
\setbeamertemplate{background}{\includegraphics[width=\paperwidth,height=\paperheight]{background}}
\begin{frame}\frametitle{Outline}
\begin{enumerate}
\item Introduction
\item A two-stage chance-constrained model
\item Case study
\item Solution approaches
\item Conclusions
\end{enumerate}
\end{frame}
\section{Introduction}
\begin{frame}\frametitle{}
\begin{center}
\bfseries{Thank you!}\\
\vspace{2cm}
\bfseries{Comments?}\\
\end{center}
\end{frame}
\section{A two-stage chance-constrained model}
\begin{frame}\frametitle{}
\begin{center}
\bfseries{Thank you!}\\
\vspace{2cm}
\bfseries{Comments?}\\
\end{center}
\end{frame}
\section{Case study}
\begin{frame}\frametitle{}
\begin{center}
\bfseries{Thank you!}\\
\vspace{2cm}
\bfseries{Comments?}\\
\end{center}
\end{frame}
\section{Solution approaches }
\begin{frame}\frametitle{A Frame Title}
\begin{center}
\bfseries{Thank you!}\\
\vspace{2cm}
\bfseries{Comments?}\\
\end{center}
\end{frame}
\end{document}
Best Answer
Just take the elements from the title page an arrange them to your needs