[Masterproj] Added introduction

Signed-off-by: Jim Martens <github@2martens.de>

masterproj/bib.bib

@@ -25,6 +25,18 @@
   Timestamp                = {2018.05.22}
 }
 
+@Inproceedings{Liu2016,
+  Title                    = {{SSD}: {S}ingle shot multibox detector},
+  Author                   = {Liu, Wei and Anguelov, Dragomir and Erhan, Dumitru and Szegedy, Christian and Reed, Scott and Fu, Cheng-Yang and Berg, Alexander C},
+  Booktitle                = {European conference on computer vision},
+  Year                     = {2016},
+  Pages                    = {21--37},
+  Publisher                = {Springer},
+
+  Owner                    = {jim},
+  Timestamp                = {2018.05.30}
+}
+
 @Article{Qi2017,
   Title                    = {Frustum PointNets for 3D Object Detection from RGB-D Data},
   Author                   = {Qi, Charles R and Liu, Wei and Wu, Chenxia and Su, Hao and Guibas, Leonidas J},