diff --git a/main.tex b/main.tex
index a722f08..25b8d6d 100644
--- a/main.tex
+++ b/main.tex
@@ -56,13 +56,13 @@
 
 	\section{Convolutional Neural Networks}
 		\subsection{Problems with image recognition}
-			.
+			\subfile{sections/"convolutional neural networks"/"problems with image recognition"}
 		\subsection{Subsampling}
-			\subfile{sections/"Convolutional Neural Networks/Subsampling/subsampling.tex"}
+			\subfile{sections/"convolutional neural networks/subsampling/subsampling.tex"}
 			\subsubsection{Kernels}
-			\subfile{sections/"Convolutional Neural Networks/Subsampling/kernerls.tex"}
+			\subfile{sections/"convolutional neural networks/subsampling/kernerls.tex"}
 			\subsubsection{Poolers}
-			\subfile{sections/"Convolutional Neural Networks/Subsampling/poolers.tex"}
+			\subfile{sections/"convolutional neural networks/subsampling/poolers.tex"}
 		\subsection{Structure}
 			.
 	\newpage
diff --git a/sections/convolutional neural networks/problems with image recognition.tex b/sections/convolutional neural networks/problems with image recognition.tex
new file mode 100644
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+++ b/sections/convolutional neural networks/problems with image recognition.tex	
@@ -0,0 +1,6 @@
+Most neural networks are unable to handle the amount of data contained in an image.
+For example an image with a resolution of 3264x2448 (8 Megapixels) would result in almost 24 million inputs, as each pixel is split into its red, green and blue parts.
+
+Another challenge is the detection of so called "features" across an image. Traditional neural networks only detect a feature at a specific location in the image.
+This is a big issue in image recognition, as you almost always want the entire image to be handled equally.
+A self-driving car should recognize a stop sign, regardless of its position in the image.
diff --git a/sections/Convolutional Neural Networks/Subsampling/kernerls.tex b/sections/convolutional neural networks/subsampling/kernerls.tex
similarity index 100%
rename from sections/Convolutional Neural Networks/Subsampling/kernerls.tex
rename to sections/convolutional neural networks/subsampling/kernerls.tex
diff --git a/sections/Convolutional Neural Networks/Subsampling/poolers.tex b/sections/convolutional neural networks/subsampling/poolers.tex
similarity index 100%
rename from sections/Convolutional Neural Networks/Subsampling/poolers.tex
rename to sections/convolutional neural networks/subsampling/poolers.tex
diff --git a/sections/Convolutional Neural Networks/Subsampling/subsampling.tex b/sections/convolutional neural networks/subsampling/subsampling.tex
similarity index 100%
rename from sections/Convolutional Neural Networks/Subsampling/subsampling.tex
rename to sections/convolutional neural networks/subsampling/subsampling.tex