Update README.md

README.md

 # micro-photogrammetry
 
-independent study - Spring 2020
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+## Course Proposal
+
+### Overview
+
+### Background
+Background:
+    - photogrammetry methods - stereo rectification and optical flow vs . . . . 
+    - existing software tools - digitalsurf.com/video-tutorials/3d-reconstruction-from-a-stereo-pair-of-sem-images/
+    - SEM specific adjustments
+