diff --git a/_config.yml b/_config.yml
index 12098d7d183256fc4c7b7046f8ed76ddc599c40b..8cf99c1eb469a359dbed3bdf5a751ae438a0dd14 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,4 +1,4 @@
-title: Just the Docs Template
+title: MAS 865.24 - computer vision and scanning
 description: A starter template for a Jeykll site using the Just the Docs theme!
 theme: just-the-docs
 color_scheme: light
diff --git a/_includes/head_custom.html b/_includes/head_custom.html
new file mode 100644
index 0000000000000000000000000000000000000000..c3050c5c6f982dec9652d5f5b4cf691f8c4c63ac
--- /dev/null
+++ b/_includes/head_custom.html
@@ -0,0 +1,15 @@
+<script>
+MathJax = {
+  tex: {
+    inlineMath: [ ['$', '$'], ['\\(', '\\)'] ]
+  },
+  svg: {
+    fontCache: 'global'
+  }
+};
+</script>
+<script
+  type="text/javascript" id="MathJax-script" async
+  src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js">
+</script>
+<link rel="stylesheet" href="/css/main.css">
diff --git a/index.md b/index.md
index 185807ac5cb3e2081be6e87a5fe8b475855f9fc6..e1021665132cbeb0a426e85d430d2d08de8be5a5 100644
--- a/index.md
+++ b/index.md
@@ -6,13 +6,12 @@ nav_order: 1
 
 # Computer Vision
 
-## [Camera Sensors]({{ '/topics/01_cameras' | relative_url }})
-
-Sensor basics
+## [Camera basics]({{ '/topics/01_cameras' | relative_url }})
 
 ## [Passive Scanning]({{ '/topics/02_passive' | relative_url }})
 
-
 ## [Active Scanning]({{ '/topics/03_active' | relative_url }})
 
 ## [Mechanical Digitizing]({{ '/topics/04_mechanical' | relative_url }})
+
+## [Image processing]({{ '/topics/05_processing' | relative_url }})
diff --git a/topics/01_cameras/img/coordinates.png b/topics/01_cameras/img/coordinates.png
new file mode 100644
index 0000000000000000000000000000000000000000..e99f50ba6ba0bf10984613c6523c39e809135855
Binary files /dev/null and b/topics/01_cameras/img/coordinates.png differ
diff --git a/topics/01_cameras/img/pinhole.png b/topics/01_cameras/img/pinhole.png
new file mode 100644
index 0000000000000000000000000000000000000000..337cc961f42cf85003ea8a5438c49bef62830a2c
Binary files /dev/null and b/topics/01_cameras/img/pinhole.png differ
diff --git a/topics/01_cameras/img/pinhole_lens.png b/topics/01_cameras/img/pinhole_lens.png
new file mode 100644
index 0000000000000000000000000000000000000000..b650aeb11583ec08f9955b238f2ae98c1c876d29
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diff --git a/topics/01_cameras/index.md b/topics/01_cameras/index.md
index 4d68e5c4358bac53c9980835785d7114f7f4ada5..d3b2fc4d22a6fad3d9454444393726aef89067bf 100644
--- a/topics/01_cameras/index.md
+++ b/topics/01_cameras/index.md
@@ -1,11 +1,11 @@
 ---
 layout: default
-title: Camera sensors
+title: Camera basics
 nav_order: 2
 mathjax: true
 ---
 
-# Camera sensors
+# Camera basics
 {: .no_toc}
 
 ## Table of contents
@@ -14,8 +14,24 @@ mathjax: true
 1. TOC
 {:toc}
 
-# CCD
+# Camera geometry
 
-# CMOS
+![](img/pinhole.png)
 
-# optics
+![](img/coordinates.png)
+
+![](img/pinhole_lens.png)
+
+# Sensor
+
+## CCD
+
+## CMOS
+
+# Lens
+
+## Distortion
+
+# Aperture
+
+# Shutter
diff --git a/topics/03_active/index.md b/topics/03_active/index.md
index 371c8ead06772f0cb2e6a67a4e54f594619850d6..2862b8590a0d6bd704bcc9e8363f33494004695b 100644
--- a/topics/03_active/index.md
+++ b/topics/03_active/index.md
@@ -14,4 +14,14 @@ mathjax: true
 1. TOC
 {:toc}
 
+# Structured light
+
+# Laser scanning
+
 # Time-of-Flight
+
+## LiDAR
+
+## ToF cameras
+
+# Light dome
diff --git a/topics/05_processing/.gitkeep b/topics/05_processing/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/topics/05_processing/index.md b/topics/05_processing/index.md
new file mode 100644
index 0000000000000000000000000000000000000000..940fdfc99d2d05cc0133c9e3a50c97dbe8a491cc
--- /dev/null
+++ b/topics/05_processing/index.md
@@ -0,0 +1,31 @@
+---
+layout: default
+title: Image processing
+nav_order: 6
+mathjax: true
+---
+
+# Image processing
+{: .no_toc}
+
+## Table of contents
+{: .no_toc .text-delta }
+
+1. TOC
+{:toc}
+
+# Filtering
+
+## Convolution
+
+## Edge detection
+
+## Fourier transform
+
+# Deep learning
+
+## Classifier
+
+## Segmentation
+
+## Regression