Insert cross column pictures under the title of the home page of latex IEEE paper, and solve the footnote problem

First on the renderings ：

This is a piece of mine thrown ieee icra Conference contributions for , With ieee-conference Of latex Template . Because I saw some other articles （ Such as cvpr The articles of are quite common ） Use the layout of putting a large horizontal picture on the home page , It feels very eye-catching , So I also want to imitate . So all kinds of information ：

https://www.zhihu.com/question/68533668

https://tex.stackexchange.com/questions/55764/input-a-figure-between-title-and-body-in-twocolumn-form

https://www.jianshu.com/p/6ac67229b08d

among , The first zhihuli model is more helpful , But I hope there is subfigure, In short, I didn't find a very suitable tutorial at that time , I worked hard for a day or two , In this moment of saving character, I don't know whether the article can be included , I'm going to write this blog Benefit the old iron in need .

I found many tutorial Posts posted latex The code is not very complete , For example, the package to be added will be omitted （\usepackage）, I directly posted my paper Of latex Code from page 0 Row to \begin{abstract} Part of , More is better .

\documentclass[letterpaper, 10 pt, conference]{ieeeconf}  

%\documentclass[a4paper, 10pt, conference]{ieeeconf}      

\IEEEoverridecommandlockouts                              
                                                          
\pdfminorversion=4

\usepackage{amsmath}
\usepackage{algorithm}
\usepackage[noend]{algpseudocode}
\usepackage{graphicx}
\usepackage{stfloats}
\usepackage{subfigure}
\usepackage{caption}
\usepackage{setspace}
\usepackage[colorlinks,linkcolor=blue]{hyperref}

\usepackage{lipsum}

\newcommand\blfootnote[1]{% 
\begingroup 
\renewcommand\thefootnote{}\footnote{#1}% 
\addtocounter{footnote}{-1}% 
\endgroup 
}

\title{\LARGE \bf
 Here is the title 
}


\author{
 Here is the author 
}






\begin{document}

% The following part is the code of the key homepage image 

\twocolumn[{%
\renewcommand\twocolumn[1][]{#1}%
\maketitle

\begin{figure}[H]
\hsize=\textwidth
    \subfigure[Inaccurate map] % The first 1 Zhang Zi Tu 
    {
        \centering
        \includegraphics[width=0.16\textwidth,height=4.6cm]{inaccurate_map1.jpg}
        \includegraphics[width=0.175\textwidth,height=4.6cm]{inaccurate_map2.jpg}
        %\label{fig:road}

        \label{fig:inaccurate}
    }
    \subfigure[Different road texture]
    {
        \centering
        \begin{minipage}[b]{0.196\textwidth}
            \centering
            \includegraphics[width=1\linewidth,height=2.25cm]{messy2.jpg}\vspace{0.1cm}
            \includegraphics[width=1\linewidth,height=2.25cm]{messy4.jpg}
        \end{minipage}
        \begin{minipage}[b]{0.196\textwidth}
            \centering
            \includegraphics[width=1\linewidth,height=2.25cm]{messy1.jpg}\vspace{0.1cm}
            \includegraphics[width=1\linewidth,height=2.25cm]{messy3.jpg}
        \end{minipage}
        %\label{fig:road}
        \label{fig:road}
    }  
    \subfigure[Crossroad] 
    {
    \centering
    \begin{minipage}[b]{0.196\textwidth}
        \centering
        \includegraphics[width=1\linewidth,height=2.25cm]{crossroad1.jpg}\vspace{0.1cm}
        \includegraphics[width=1\linewidth,height=2.25cm]{crossroad2.jpg}
    \end{minipage}
    \label{fig:crossroad}
    }
    \captionsetup[width=\textwidth]{
    \begin{spacing}{1.0}
        \footnotesize{ Fig.~1: Photo caption } 
    \end{spacing}
    }
    
\end{figure}
}]




%  Footnote at the bottom of the home page , Because of the existence of large illustrations on the home page , Many footnotes cannot be displayed normally , This is the only ideal method 
\blfootnote{*The authors are with the School xxx University, China.}

\begin{abstract}

...
...
...

Write more notes ,

1. I use it ieee Template , This is very important , It seems to have been replaced by something else , Things will change .

2. \usepackage I'm not sure which one is needed for this home page illustration , Add more package It doesn't matter, does it .

3. \subfigure The code of seems to be sensitive to carriage return , Be careful , Especially I hope subfigure The arrangement of is Tian zigzag .

4. The code of the illustration , I'm on my own overleaf When compiling on , In fact, there will always be an error , But the result of compilation looks no problem to the naked eye , There is no problem uploading to the conference submission system .

If there are mistakes, I hope you will forgive me , A lot of correct . If you have any questions, you can also leave a message .

That's all. Thank you.