如何在 beamer 中自定义标题页？

Question

我想为beamer这样的演示文稿创建一个标题页。

我看到了一些关于修改内部主题的内容，但我不明白如何放置大学的标志和将上部与下部分开的水平线。

编辑： 这是我的标题页的 MWE。我想插入一张图片来代替橙色。我不想在标题页中出现页眉和页脚，但我不知道如何消除它们。

\documentclass{beamer}
\usetheme{CambridgeUS}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\title[]{Title}
\date{28 luglio 2016}
\author[]{Author\\{\small Supervisor}}
\institute[]{Institute}
\usepackage{tikz}
\usepackage{pdfrender}
\usetikzlibrary{shapes,arrows}
\setbeamerfont{author}{size=\Large}
\setbeamerfont{institute}{size=\fontsize{10}{10}\itshape}
\setbeamerfont{title}{size=\fontsize{30}{36}\bfseries}
\setbeamerfont{subtitle}{size=\Large\normalfont\slshape}
\setbeamertemplate{title page}{%
\begin{tikzpicture}[remember picture,overlay]
\fill[orange]
  ([yshift=15pt]current page.west) rectangle (current page.south east);
\node[anchor=east] 
  at ([yshift=-50pt]current page.north east) (author)
  {\parbox[t]{.6\paperwidth}{\raggedleft%
    \usebeamerfont{author}\textcolor{orange}{%
    \textpdfrender{
    TextRenderingMode=FillStroke,
%    FillColor=orange,
%    LineWidth=.1ex,
    }{\insertauthor}}}};
\node[anchor=north east] 
  at ([yshift=-70pt]current page.north east) (institute)
  {\parbox[t]{.78\paperwidth}{\raggedleft%
    \usebeamerfont{institute}\textcolor{gray}{\insertinstitute}}};
\node[anchor=south west] 
  at ([yshift=20pt]current page.west) (logo)
  {\parbox[t]{.19\paperwidth}{\raggedleft%
    \usebeamercolor[fg]{titlegraphic}\inserttitlegraphic}};
\node[anchor=east]
  at ([yshift=-15pt,xshift=-20pt]current page.east) (title)
  {\parbox[t]{\textwidth}{\raggedleft%
 \usebeamerfont{author}\textcolor{white}{%
    \textpdfrender{
    TextRenderingMode=FillStroke,
    FillColor=white,
    LineWidth=.1ex,
    }{\inserttitle}}}};
\node[anchor=east]
  at ([yshift=-60pt,xshift=-20pt]current page.east) (subtitle)
  {\parbox[t]{.6\paperwidth}{\raggedleft\usebeamerfont{subtitle}\textcolor{black}{\insertsubtitle}}};
\end{tikzpicture}
}
\titlegraphic{\includegraphics[width=2cm]{Sigillo.pdf}}
\begin{document}
\begin{frame}
\maketitle
\end{frame}
\end{document}

Answer 1

\documentclass{beamer}

\usetheme{CambridgeUS}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{tikz}
\usepackage{pdfrender}

\usetikzlibrary{shapes,arrows}

\title[]{Title}
\date{28 luglio 2016}
\author[]{Author{\small Supervisor}}
\institute[]{Institute}

\setbeamerfont{author}{size=\Large}
\setbeamerfont{institute}{size=\fontsize{10}{10}\itshape}
\setbeamerfont{title}{size=\fontsize{30}{36}\bfseries}
\setbeamerfont{subtitle}{size=\Large\normalfont\slshape}

\setbeamertemplate{title page}{%
    \begin{tikzpicture}[remember picture,overlay]
    \node[anchor=south] at ([yshift=-0.15cm]current page.south) {\includegraphics[width=\paperwidth,height=5cm]{example-grid-100x100bp}};
    \node[anchor=east] 
    at ([yshift=-50pt]current page.north east) (author)
    {\parbox[t]{.6\paperwidth}{\raggedleft%
            \usebeamerfont{author}\textcolor{orange}{%
                \textpdfrender{
                    TextRenderingMode=FillStroke,
                    %    FillColor=orange,
                    %    LineWidth=.1ex,
                }{\insertauthor}}}};
    \node[anchor=north east] 
    at ([yshift=-70pt]current page.north east) (institute)
    {\parbox[t]{.78\paperwidth}{\raggedleft%
            \usebeamerfont{institute}\textcolor{gray}{\insertinstitute}}};
    \node[anchor=south west] 
    at ([yshift=20pt]current page.west) (logo)
    {\parbox[t]{.19\paperwidth}{\raggedleft%
            \usebeamercolor[fg]{titlegraphic}\inserttitlegraphic}};
    \node[anchor=east]
    at ([yshift=-15pt,xshift=-20pt]current page.east) (title)
    {\parbox[t]{\textwidth}{\raggedleft%
            \usebeamerfont{author}\textcolor{white}{%
                \textpdfrender{
                    TextRenderingMode=FillStroke,
                    FillColor=white,
                    LineWidth=.1ex,
                }{\inserttitle}}}};
    \node[anchor=east]
    at ([yshift=-60pt,xshift=-20pt]current page.east) (subtitle)
    {\parbox[t]{.6\paperwidth}{\raggedleft\usebeamerfont{subtitle}\textcolor{black}{\insertsubtitle}}};
    \end{tikzpicture}
}
\titlegraphic{\includegraphics[width=2cm]{example-image}}

\begin{document}
    \begin{frame}[plain]
        \maketitle
    \end{frame}
\end{document}