Reorganize measurements, add 2026-04-20 capture, setup images, demo videos

- Move 2026_04_15_16_28_10/ -> measurements/cu3s/2026_04_15_16_28_10/
- Add new measurement measurements/cu3s/2026_04_20_16_28_54/ (incl. spam-overlay-rgb.xml)
- Add measurements/README.md with capture metadata
- Add setup-images/20260331/ (4 site photos)
- Embed Passive / Active / All-humans demo videos in README (centered, max 500 px)
- Track *.cu3s and *.info via LFS

.gitattributes

@@ -59,3 +59,6 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
 2026_04_15_16_28_10/Auto_000.cu3s filter=lfs diff=lfs merge=lfs -text
+# Cubert measurement files
+*.cu3s filter=lfs diff=lfs merge=lfs -text
+*.info filter=lfs diff=lfs merge=lfs -text

2026_04_15_16_28_10/Auto_000.info

@@ -1,375 +0,0 @@
-OperationMode: Internal
-FPS: 15
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README.md

@@ -73,6 +73,32 @@ The full tracking pipeline is built in [**Cuvis.AI**](https://docs.cuvis.ai) —
 3. **SAM3MaskPropagation** — runs SAM3 in mask-propagation mode over the clip, seeded once by a `MaskPrompt` node (`--prompt 17:1@65` = seed mask for object 17 at frame 65).
 4. **TrackingOverlay + ToVideoNode** — renders the mask contours on the false-RGB frames and encodes an mp4.
 
+## Demo videos
+
+### Passive tracking
+
+<p align="center">
+  <video src="measurements/cu3s/2026_04_15_16_28_10/Auto_000_gt_vs_pred.mp4" controls muted loop playsinline style="max-width:500px;width:100%;"></video>
+</p>
+
+*Ground truth vs prediction during the passive phase — the three actors walk in single file with mutual occlusions; the hyperspectral tracker preserves the correct ID lock on T.*
+
+### Active tracking
+
+<p align="center">
+  <video src="measurements/cu3s/2026_04_20_16_28_54/Auto_000_combined.mp4" controls muted loop playsinline style="max-width:500px;width:100%;"></video>
+</p>
+
+*Combined view after T sprays D1 with the spectral ink — the marker becomes a deterministic, training-free signature that the tracker locks onto.*
+
+### All humans (baseline)
+
+<p align="center">
+  <video src="measurements/cu3s/2026_04_15_16_28_10/Auto_000-all-humans.mp4" controls muted loop playsinline style="max-width:500px;width:100%;"></video>
+</p>
+
+*Untargeted run with every detected person tracked — the same pipeline configured for class-level tracking instead of single-target lock.*
+
 ## Learn more
 
 - **Cuvis.AI documentation** — <https://docs.cuvis.ai>

measurements/README.md

@@ -0,0 +1,85 @@
+===============================================================================
+   ____  _  _  ____  ____  ____  ____ 
+  / ___)( )( )(  _ \(  __)(  _ \(_  _)
+ ( (___  )__(  ) _ ( ) _)  )   /  )(  
+  \____)(____)(____/(____)(_)\_) (__) 
+
+  [[ HYPERSPECTRAL DATA LOG ]]          EST. 2012 // CUBERT-HYPERSPECTRAL
+===============================================================================
+
+[ GENERAL INFORMATION ]
+-------------------------------------------------------------------------------
+Project Name    : Distridays UseCase 1
+Date            : 2026-04-24
+Operator        : Development Team at Cubert
+Additional Data : none
+
+[ HARDWARE CONFIGURATION ]
++-----------------------------------------------------------------------------+
+| Camera Model : [x] ULTRIS XMR   [ ] FireflEYE 185   [ ] ULTRIS X20p         |
+| Other Model  : ____________________                                         |
+| Lens/Optic   : ___50mm / f2.0_____ (e.g. 25mm / f2.8)                      |
+| Accessories  : [ ] Polarizer  [ ] Filter: __________ [x] None               |
++-----------------------------------------------------------------------------+
+
+[ SETUP & LIGHTING ]
++-----------------------------------------------------------------------------+
+| Light Source : [ ] Halogen    [ ] LED     [X] Sunlight   [ ] ____________   |
+| Distance (m) : __100___ m                                                   |
+| Setup Notes  : Busy bus station. Human actors with similar outfit           |
+|                looking different in spectral view.                          |
+|                                                                             |
++-----------------------------------------------------------------------------+
+
+[ ACQUISITION SETTINGS ]
++-----------------------------------------------------------------------------+
+| MEASUREMENT MODE:                                                           |
+| [ ] Single Capture     [X] Video Mode     [ ] External Trigger              |
+|                                                                             |
+| Integration Time: ____17____ ms        Frame Rate: ___15___ fps             |
+| White Reference : ___NO WHITE REFERENCE____ (e.g. Spectralon 99%)           |
+| Dark Current    : [X] Recorded                                              |
+| Distance        :          mm                                               |
++-----------------------------------------------------------------------------+
+
+[ OBJECT & SCENE DESCRIPTION ]
+-------------------------------------------------------------------------------
+Object Type : ___Human (Complex scene)_______ (e.g. Vegetation, Mineral, Lab-Sample)
+
+Description set up and application:
+
+Goal: Demonstrate that hyperspectral features beyond the visible spectrum
+improve person tracking in a crowded scene — fewer false ID switches and
+more reliable lock on the correct person than an RGB-only tracker can
+achieve.
+
+Setting: Outdoor bus station with a busy pedestrian background. Camera on
+a static tripod roughly 100 m from the subject area, pointing at a section
+where pedestrians pass and wait. Hyperspectral data cube captured in video
+mode; spectral bands beyond the visible are exploited as tracking cues.
+
+Subjects: Three actors — T (target), D1 (decoy 1), D2 (decoy 2). All three
+wear visually identical outfits so they look similar in the RGB projection
+of the hyperspectral cube. T wears a garment made of a material that looks
+distinct in CIR (colour infrared). This CIR difference is the spectral cue
+the tracker is expected to exploit.
+
+Passive phase: Actors walk in single file toward or away from the camera,
+occluding one another along the optical axis. A visible-only tracker tends
+to swap IDs in this setting; hyperspectral cues should preserve the
+correct lock.
+
+Active phase: While on camera, T carries a bottle of "invisible" ink that
+is visible only in specific spectral bands and sprays D1 with it. The
+spray adds a trackable spectral signature to D1 mid-recording. After
+marking, the three actors walk out of the scene from the opposite side,
+so the tail of the take shows the post-marking state.
+
+[ CREDITS & REFERENCES ]
+-------------------------------------------------------------------------------
+Recorded and processed by the AI Team@Cubert <cuvis.ai@cubert-gmbh.de>.
+Dataset page    : https://huggingface.co/datasets/cubert-gmbh/XMR_Demo_Object_Tracking
+
+-------------------------------------------------------------------------------
+   END OF LOG | Cubert Hyperspectral Systems
+===============================================================================

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+<?xml version="1.0"?>
+<userplugin xmlns="http://cubert-gmbh.de/user/plugin/userplugin.xsd">
+	<configuration name="SAMRGB" citation="CUBERT" plugin_author="Cubert" plugin_version="1.0.1" required_engine_version="3.2.0">
+		<comment>
+      Spectral Angle Mapper (SAM) Masked RGB View:
+      ---
+      RGB := avg(RedWL, GreenWL, BlueWL ± Width/2), masked by SAM match
+    </comment>
+		<input id="ReferenceSpectrum" type="spectrum">2.79636;3.03145;3.22149;3.37242;3.5088;3.46626;3.3917;3.26765;3.05825;2.7853;2.45309;2.44924;2.4808;2.50736;2.39159;2.25162;2.0681;2.29102;2.54648;2.80996;2.8032;2.68422;2.55327;2.42637;2.313;2.19735;2.09707;2.02811;1.96153;1.98796;2.16417;2.33665;2.56507;3.05334;3.52438;3.99388;4.45357;4.94007;5.43614;5.5052;5.45429;5.3719;5.38258;5.39094;5.40316;5.50823;5.74062;5.97479;6.37274;6.81186;7.28923;7.80588;8.38648;8.97408;9.06089;8.89036;8.72386;8.47607;7.96592;7.42718;6.91394</input>
+		<input id="SAM_Threshold" type="scalar" min="0" max="1">0.91</input>
+		<input id="SAM_MinWL" type="wavelength">400</input>
+		<input id="SAM_MaxWL" type="wavelength">1000</input>
+		<input id="RedWL" type="scalar" min="300" max="1200" tickFreq="1">647</input>
+		<input id="GreenWL" type="scalar" min="300" max="1200" tickFreq="1">575</input>
+		<input id="BlueWL" type="scalar" min="300" max="1200" tickFreq="1">470</input>
+		<input id="Width" type="scalar" min="1" max="200">20</input>
+		<input id="Normalize" type="scalar">0.75</input>
+		<evaluate id="HalfWidth">
+			<operator type="divide">
+				<variable ref="Width" />
+				<value>2</value>
+			</operator>
+		</evaluate>
+		<evaluate id="RedMin">
+			<operator type="subtract">
+				<variable ref="RedWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="RedMax">
+			<operator type="add">
+				<variable ref="RedWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="GreenMin">
+			<operator type="subtract">
+				<variable ref="GreenWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="GreenMax">
+			<operator type="add">
+				<variable ref="GreenWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="BlueMin">
+			<operator type="subtract">
+				<variable ref="BlueWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="BlueMax">
+			<operator type="add">
+				<variable ref="BlueWL" />
+				<variable ref="HalfWidth" />
+			</operator>
+		</evaluate>
+		<evaluate id="RedChan">
+			<fastmono wl_min="RedMin" wl_max="RedMax" normalize="Normalize" />
+		</evaluate>
+		<evaluate id="GreenChan">
+			<fastmono wl_min="GreenMin" wl_max="GreenMax" normalize="Normalize" />
+		</evaluate>
+		<evaluate id="BlueChan">
+			<fastmono wl_min="BlueMin" wl_max="BlueMax" normalize="Normalize" />
+		</evaluate>
+		<evaluate id="SAM_Mask">
+			<correlation method="spectral_angle" match_label="1" nomatch_label="0" threshold_ref="SAM_Threshold" spectrum_ref="ReferenceSpectrum" ref_min="SAM_MinWL" ref_max="SAM_MaxWL">
+				<cube />
+			</correlation>
+		</evaluate>
+		<evaluate id="MaskedRed">
+			<select threshold="0.5">
+				<variable ref="SAM_Mask" />
+				<variable ref="RedChan" />
+				<value>255</value>
+			</select>
+		</evaluate>
+		<evaluate id="MaskedGreen">
+			<select threshold="0.5">
+				<variable ref="SAM_Mask" />
+				<variable ref="GreenChan" />
+				<value>0</value>
+			</select>
+		</evaluate>
+		<evaluate id="MaskedBlue">
+			<select threshold="0.5">
+				<variable ref="SAM_Mask" />
+				<variable ref="BlueChan" />
+				<value>0</value>
+			</select>
+		</evaluate>
+		<output_image show="true">
+			<R>
+				<variable ref="MaskedRed" />
+			</R>
+			<G>
+				<variable ref="MaskedGreen" />
+			</G>
+			<B>
+				<variable ref="MaskedBlue" />
+			</B>
+		</output_image>
+	</configuration>
+</userplugin>