outline passive

topics/02_passive/index.md

@@ -27,4 +27,22 @@ Photogrammetry is the collection and organization of reliable information about
 
 <p><img src="images/house_scanning.jpg" alt="House"></p>
 
-<h2 id="stereo-matching-and-photogrammetry"> <a href="#stereo-matching-and-photogrammetry" class="anchor-heading" aria-labelledby="stereo-matching-and-photogrammetry"><svg viewBox="0 0 16 16" aria-hidden="true"><use xlink:href="#svg-link"></use></svg></a> Stereo matching and photogrammetry </h2>
+# Stereo Matching and Photogrammetry
+
+
+<p>Early uses in stereophotogrammetry, the estimation of 3d coordinates from measurements taken from two or more images through the identification of common points. This technology was used throughout the early 20th century for generating topographic maps.</p>
+
+<p><img src="images/stereo_plotter.jpg" alt="StereoPlotter"></p>
+
+
+# Key Benefits
+
+
+
+# Key Challenges
+
+# Tools
+
+# Apps
+
+# Camera Equations