diff --git a/assets/group_F.png b/assets/group_F.png
new file mode 100644
index 0000000..df71681
Binary files /dev/null and b/assets/group_F.png differ
diff --git a/index.html b/index.html
index 7ceb546..8e3895c 100644
--- a/index.html
+++ b/index.html
@@ -304,7 +304,32 @@ <h3>Open-Vocabulary Object Tracking with Grounding DINO, SAM 2 and CLIP</h3>
 
 
 
-
+<article class="project-card">
+  <div class="teaser" role="img" aria-label="Depth-aware augmented reality music interface showing virtual instruments placed on detected floor regions.">
+    <img src="assets/group_F.png" alt="Air Instrument depth-aware AR music interface preview" style="position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:2;">
+    <span class="teaser-label" style="z-index:3;">Group F</span>
+  </div>
+  <div class="project-content">
+    <p class="project-meta">Monocular depth estimation, hand tracking, augmented reality, human-computer interaction</p>
+    <h3>Air Instrument: Depth-Aware Virtual Music Placement</h3>
+    <p class="project-abstract">
+      Air Instrument explores how a normal webcam can turn a room into an interactive musical stage. The system first
+      estimates scene depth using Depth Anything V2, detects candidate floor or surface regions, and lets users place
+      virtual instruments into available 3D space through hand gestures. Once instruments are placed, a playing mode uses
+      MediaPipe hand tracking to control expressive parameters such as pitch and volume without touching any physical
+      device.
+      <br><br>
+      The project combines monocular depth estimation, spatial reasoning, gesture recognition, and augmented reality
+      rendering into a live demo. Our goal is to study how depth-aware scene understanding can support natural interaction:
+      where can an object be placed, how large should it appear, and how can the user control it through movement?
+    </p>
+    <label class="project-toggle-label">
+      <input class="project-toggle" type="checkbox" aria-label="Toggle full project pitch">
+      <span class="project-toggle-more">Read more</span>
+      <span class="project-toggle-less">Show less</span>
+    </label>
+  </div>
+</article>