Drawing this figure on latex

Question

Is there a sample code that draws something similar to the figure below ? The black images are pictures that Id like to insert.

I have a sample code.

1) How do I change the rectangles into another shape ? Eg trapezoid / a rectangle without splitting.

2) How do I insert images where the text is

% System Combination
% Harish K Krishnamurthy <www.ece.neu.edu/~hkashyap/>
\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{shapes,arrows,shadows}
\usepackage{amsmath,bm,times}
%%%<
\usepackage{verbatim}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{5pt}%
%%%>

\begin{comment}
:Title: System Combination
:Author: Harish K Krishnamurthy

A block diagram of system combination technique of combining several Automatic Speech Recognition Systems (ASRs) to determine best word sequence outputs is shown here. The training and validation phase are the important phases.

\end{comment}

\newcommand{\mx}[1]{\mathbf{\bm{#1}}} % Matrix command
\newcommand{\vc}[1]{\mathbf{\bm{#1}}} % Vector command

\begin{document}
% Define the layers to draw the diagram
\pgfdeclarelayer{background}
\pgfdeclarelayer{foreground}
\pgfsetlayers{background,main,foreground}

% Define block styles used later

\tikzstyle{sensor}=[draw, fill=blue!20, text width=5em, 
    text centered, minimum height=2.5em,drop shadow]
\tikzstyle{ann} = [above, text width=5em, text centered]
\tikzstyle{wa} = [sensor, text width=10em, fill=red!20, 
    minimum height=6em, rounded corners, drop shadow]
\tikzstyle{sc} = [sensor, text width=13em, fill=red!20, 
    minimum height=10em, rounded corners, drop shadow]

% Define distances for bordering
\def\blockdist{2.3}
\def\edgedist{2.5}

\begin{tikzpicture}[
  hid/.style 2 args={
    rectangle split,
    rectangle split horizontal,
    draw=#2,
    rectangle split parts=#1,
    fill=#2!20,
    outer sep=1mm}]
  % draw input nodes
  \foreach \i [count=\step from 1] in {the,blue,house,{{$<$eos$>$}}}
    \node (i\step) at (2*\step, -2) {\i};
  % draw output nodes
  \foreach \t [count=\step from 4] in {la,casa,azul,{{$<$eos$>$}}} {
    \node[align=center] (o\step) at (2*\step, +2.75) {\t};
  }
  % draw embedding and hidden layers for text input
  \foreach \step in {1,...,3} {
    \node[hid={3}{red}] (h\step) at (2*\step, 0) {};
    \node[hid={3}{red}] (e\step) at (2*\step, -1) {};    
    \draw[->] (i\step.north) -> (e\step.south);
    \draw[->] (e\step.north) -> (h\step.south);
  }
  % draw embedding and hidden layers for label input
  \foreach \step in {4,...,7} {
    \node[hid={3}{yellow}] (s\step) at (2*\step, 1.25) {};
    \node[hid={3}{blue}] (h\step) at (2*\step, 0) {};
    \node[hid={3}{blue}] (e\step) at (2*\step, -1) {};    
    \draw[->] (e\step.north) -> (h\step.south);
    \draw[->] (h\step.north) -> (s\step.south);
    \draw[->] (s\step.north) -> (o\step.south);
  }  
  % edge case: draw edge for special input token
  \draw[->] (i4.north) -> (e4.south);
  % draw recurrent links
  \foreach \step in {1,...,6} {
    \pgfmathtruncatemacro{\next}{add(\step,1)}
    \draw[->] (h\step.east) -> (h\next.west);
  }
  % draw predicted-labels-as-inputs links
  \foreach \step in {4,...,6} {
    \pgfmathtruncatemacro{\next}{add(\step,1)}
    \path (o\step.north) edge[->,out=45,in=225] (e\next.south);
  }
\end{tikzpicture}
\end{document}

Answer 1

A step in the right direction...

\documentclass[tikz, margin=5]{standalone}
\usepackage[prefix=]{xcolor-material}
\usetikzlibrary{shapes.geometric,positioning,arrows.meta}
\renewcommand\familydefault\sfdefault
\tikzset{%
  coder/.style={
    shape=trapezium,
    fill=LightGreen,
    text=White
  },
  lstm/.style={
    shape=rectangle,
    fill=LightBlue,
    text=white,
    minimum width=2cm
  },
  image/.style={
    shape=rectangle,
    minimum size=1.5cm,
    draw=White,
    fill=Black
  },
  link/.style={
    ultra thick,
    ->
  },
  >=Triangle
}

\begin{document}
\begin{tikzpicture}
\foreach \i [count=\j from 0] in {1,...,4}{
  \tikzset{shift=(0:\j*3)}
  \node [lstm] (lstm-\i) {LSTM};
  \node [above=0.5cm of lstm-\i, coder] (decoder-\i) {DECODER};
  \node [below=0.5cm of lstm-\i, coder] (encoder-\i) {ENCODER};
  \node [image, above=0.25 of decoder-\i, shift=(45:0.5), 
    label={100:$x[\i]$}] {};
  \node [image, above=0.25 of decoder-\i, label={150:$\bar{x}[\i]$}] {};
  \node [image, below=0.25 of encoder-\i, label={270:$x[\j]$}] {};
  \draw [link] (encoder-\i) -- (lstm-\i);
  \draw [link] (lstm-\i) -- (decoder-\i);
  \ifnum\j>0
    \draw [link] (lstm-\j) -- (lstm-\i);
  \fi
}
\end{tikzpicture}
\end{document}