diff --git a/topics/02_passive/index.md b/topics/02_passive/index.md
index a436c17808de7204fc4efdf2d4f61c6a425f3e8d..1a3b8c99f3a7cba3778fe326b6c142f1d5b48515 100644
--- a/topics/02_passive/index.md
+++ b/topics/02_passive/index.md
@@ -21,10 +21,10 @@ Photogrammetry is the collection and organization of reliable information about
 
 <p>Photogrammetry was first documented by the Prussian architect <a href="https://opus4.kobv.de/opus4-btu/files/749/db186714.pdf">Albrecht Meydenbauer</a> in 1867. Since then it has been used for everything from simple measurement or color sampling to record complex 3d <a href="https://en.wikipedia.org/wiki/Motion_field">motion fields</a>.</p>
 
-<p><img src="img/data_model_photogrammetry.png" alt="Data Model of Photogrammetry"></p>
+<p><img src="images/data_model_photogrammetry.png" alt="Data Model of Photogrammetry"></p>
 
 <p>A typical medium resolution aerial photogrammetry scan of a barn. With 50-100 images a reasonably accurate model can be produced. Such models are often used in surveying and restoration projects from the scale of hand helf objects to cities.</p>
 
-<p><img src="img/house_scanning.jpg" alt="House"></p>
+<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>