# 2D Image Annotation: LiveCamera Scribe  
### Real-Time Annotation & Spatial Media Alignment in Hybrid Mission Spaces

**LiveCamera Scribe** enables participants to draw, tag, and annotate directly onto **live video feeds**—such as ROVs, handheld cameras, or fixed shipboard views—and have those annotations **projected into shared physical or digital environments** using estimated camera pose. It also supports **dragging in and spatially aligning media** (photos, movies, screenshares) to 3D-scanned surfaces within the room using [AnySurface 3D scanning](https://stigmergic.webdav.acequia.io:3334/pitches/anysurface-3d-scan.md) or photogrammetry.

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## ✨ Core Functionality

### 🎥 Live Annotation
- Annotate live video feeds in real time.
- Mark features, add labels, sketch outlines, or highlight moving targets.
- All annotations are spatialized using camera pose estimation.

### 🧲 Media Placement in 3D Rooms
- Drag and drop:
  - Still images (e.g., frame captures, reference photos),
  - Video clips (e.g., previous dives, mission briefings),
  - Screenshares (e.g., map tools, dashboards),
  - Live camera feeds.
- Align these assets onto **3D-scanned room geometry** using:
  - Photogrammetry-based meshes,
  - [AnySurface 3D scanning](https://stigmergic.webdav.acequia.io:3334/pitches/anysurface-3d-scan.md) projector-camera calibration.

- Media becomes **anchored to physical surfaces** (walls, tables, domes) and responds to room geometry in real-time projection or virtual rendering.

### 🧭 Pose-Linked Projection
- All annotations and aligned media honor camera pose or projection geometry.
- Supports compositing into:
  - Web-based 3D viewers (CesiumJS, Three.js),
  - Physical spaces via calibrated projection mapping.

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## 🌍 Use Cases

- **ROV Dive Narration**  
  Scientists trace reefs, mark fauna, and tag geological features live—annotations projected into a mission control dome or viewer.

- **Mission Briefing Rooms**  
  Drop in relevant maps, video frames, or past dive photos onto physical wall regions for reference—anchored spatially for walk-around interaction.

- **Remote Training**  
  Experts annotate feeds while students watch in a hybrid room, guided by projected cues and reference media aligned to the walls.

- **Collaborative Forensics or Ecological Survey**  
  Multi-perspective photo alignment reconstructs scenes (e.g., wrecks, coral damage) across media types and viewpoints.

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## 🧠 Technical Requirements

- **Video Feed Integration**
  - Supports low-latency WebRTC, HLS, or DASH.
  - Pose telemetry via WebSocket, embedded metadata, or manual calibration.

- **Annotation Tools**
  - Drawing (line, brush, polygon), labels, timestamps.
  - Time-synced overlays on live feed.

- **Surface-Aware Media Alignment**
  - Snap-to-mesh projection using photogrammetry or [AnySurface 3D scanning](https://stigmergic.webdav.acequia.io:3334/pitches/anysurface-3d-scan.md).
  - Transformation tools for rotation, scaling, and refinement.

- **Projection Pipeline**
  - Converts screen-space annotations/media into 3D-space overlays.
  - Feeds projection-mapped surfaces or WebGL viewers.

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## 🔗 Strategic Integration

| Integrated With     | Benefit                                                         |
|---------------------|------------------------------------------------------------------|
| [Zoom Room](https://stigmergic.webdav.acequia.io:3334/pitches/zoom-room.md) | Feeds and media aligned to mission control room geometry. |
| Digital Graffiti    | Extends from temporal annotation to embodied projection.         |
| Dual Space          | Connects browser and physical interfaces through shared space.   |
| Mission Specialist  | Remote users contribute to shared spatial annotation.            |

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## 🚀 Future Extensions

- AI-assisted annotation for object and species detection.
- Replay mode with spatial-temporal navigation through annotated footage.
- Support for multiple room geometries (e.g., vessel interior, sandtable, dome).
- Timeline stacking of multiple mission-day annotations across media types.

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> **LiveCamera Scribe** bridges live observation, embodied presence, and collaborative annotation—transforming the mission space into a layered, spatial notebook of shared discovery.