Interleaving images in paused lists with Beamer

Question

I have the following frame in my Beamer code:

\begin{frame}{Motivation}
    \begin{itemize}
        \item<1-> We deal with a lot of cameras.
        \item<1-> We do lots of experiments.
        \item<2-> How to multiplex the video streams?
        \item<3-> How to unify the API for controlling distinct cameras?
    \end{itemize}
\end{frame}

This works great as a "paused list" where each item ends up as a slide. I want, however, to interleave full-size images, but I'm not sure how to do it. What I mean by that is between each item there is a slide that's some figure from \includegraphics.

I tried making copies frames, but the positioning ends up wrong, and also tried to place the image within the item list, but that also ended up weird.

Answer 1

There are many possibilities to accomplish this, this is a very basic one:

\documentclass{beamer}
\begin{document}
\begin{frame}[t]
\frametitle{Motivation}
    \begin{itemize}
        \item<1-2,4,6-> We deal with a lot of cameras.
        \item<1-2,4,6-> We do lots of experiments.
        \item<4,6-> How to multiplex the video streams?
        \item<6-> How to unify the API for controlling distinct cameras?
    \end{itemize}
\centering\vspace*{-2cm}%
\only<3>{\includegraphics{example-image-a}}\only<5>{\includegraphics{example-image-b}}
\vfill  
\end{frame}
\end{document}

If you are willing to load tikz, things become more elegant and straightforward.

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{overlay-beamer-styles}
\begin{document}
\begin{frame}[t]
\frametitle{Motivation}
    \begin{itemize}
        \item<1-> We deal with a lot of cameras.
        \item<1-> We do lots of experiments.
        \item<4-> How to multiplex the video streams?
        \item<6-> How to unify the API for controlling distinct cameras?
    \end{itemize}
\begin{tikzpicture}[overlay,remember picture]
 \node[visible on=<3>,anchor=south] at ([yshift=3mm]current page.south)
 {\includegraphics[height=8cm]{example-image-a}};
 \node[visible on=<5>,anchor=south] at ([yshift=3mm]current page.south)
 {\includegraphics[height=8cm]{example-image-b}};
\end{tikzpicture}
\end{frame}
\end{document}

Answer 2

From a tikz proof of concept as discussed with Sam Carter but adapted to images however they are here a max 66%

\documentclass{beamer}

\setbeamercovered{transparent}
\usepackage{mwe}

\begin{document}

\begin{frame}{Motivation}
\begin{itemize}[<+>]
\item \alt<.>{We will now look at the following four images}{Start}
\item \alt<.>{\includegraphics[scale=0.66]{example-image}\\ We deal with a lot of cameras.}{Cameras}
\item \alt<.>{\includegraphics[scale=0.66]{example-image-a}\\ We do lots of experiments.}{Experiments}
\item \alt<.>{\includegraphics[scale=0.66]{example-image-b}\\ How to multiplex the video streams?}{Multiplex}
\item \alt<.>{\includegraphics[scale=0.66]{example-image-c}\\ How to unify the API for controlling distinct cameras?}{API Control}
\end{itemize}
\end{frame}


\end{document}