diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 9c746e9434f648c96aa96f03440037167bd073d2..bb160e380d137b0fe106fb7858853f0109726178 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -3,5 +3,7 @@
   <component name="VcsDirectoryMappings">
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/Distance_measurement_using_single_camera" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/Drone-Detection_YOLOv3_PyTorch" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/Drone-Detection_YOLOv3_PyTorch/data/coco" vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/Distance_measurement_using_single_camera/Distance meaurement single camera.pptx b/Distance_measurement_using_single_camera/Distance meaurement single camera.pptx
index 09bf2f852a66edbd053fed5ece22cd6dd2492904..59fa2bdf5293ab5d3175bf88b43377a28624a215 100644
Binary files a/Distance_measurement_using_single_camera/Distance meaurement single camera.pptx and b/Distance_measurement_using_single_camera/Distance meaurement single camera.pptx differ
diff --git a/Drone-Detection_YOLOv3_PyTorch b/Drone-Detection_YOLOv3_PyTorch
new file mode 160000
index 0000000000000000000000000000000000000000..8acc7d19a436e4fd7e3ee3ccc3b968f7e92fa3f0
--- /dev/null
+++ b/Drone-Detection_YOLOv3_PyTorch
@@ -0,0 +1 @@
+Subproject commit 8acc7d19a436e4fd7e3ee3ccc3b968f7e92fa3f0
diff --git a/README.rst b/README.rst
index a47af1c4183db77a3575eafcf7105db9c290abf2..fa43fa995863d858bff945f1805b37e084a89e29 100644
--- a/README.rst
+++ b/README.rst
@@ -1 +1,3 @@
-https://automaticaddison.com/how-to-detect-aruco-markers-using-opencv-and-python/
\ No newline at end of file
+https://automaticaddison.com/how-to-detect-aruco-markers-using-opencv-and-python/
+
+https://pysource.com/2021/05/28/measure-size-of-an-object-with-opencv-aruco-marker-and-python/
\ No newline at end of file
diff --git a/VID_20220208_150059.mp4 b/VID_20220208_150059.mp4
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diff --git a/final_620280e870af3900a332dfaf_583755.mp4 b/final_620280e870af3900a332dfaf_583755.mp4
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