File size: 4,602 Bytes
cb3c674 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | # Quick Start: Screenshot Capture for Unusual Activity
## How It Works (3 Simple Steps)
### Step 1: Start Live Camera Monitoring
1. Go to **Live Camera** page
2. Select your camera from the dropdown (USB camera must be connected)
3. Check the detection models you want to use:
- ✓ Weapon Detection (guns/knives)
- ✓ Violence Detection (fighting, aggression)
- ✓ Anomaly Detection (unusual behavior)
- ✓ Pose Detection (unsafe positions)
4. Click **"Start Camera"** button
### Step 2: Monitor in Real-Time
- The live feed appears with AI analysis
- Watch the **"Recent Detections"** gallery at the top
- When unusual activity is detected, **screenshots are automatically captured**
- Status indicators show:
- 🟢 LIVE - Camera is streaming
- 📊 Statistics - Real-time detection counts
- 🚨 Alerts - Active threats
### Step 3: Review Detections
- Look at the **"Recent Detections"** gallery
- Click any thumbnail to see full details:
- Full-size screenshot
- Detection type (Weapon/Violence/Anomaly)
- Alert severity level
- Exact timestamp
- Confidence score
## What Gets Automatically Captured?
| Activity | Icon | Alert Level | Example |
| ------------------ | ---- | --------------- | ----------------------------------- |
| Weapon Detected | 🔫 | HIGH | Gun/knife detection with confidence |
| Violence | 👊 | MEDIUM-CRITICAL | Fighting, aggression detected |
| Anomaly | ❓ | LOW-CRITICAL | Unusual behavior pattern |
| Risk Pose + Weapon | ⚠️ | HIGH-CRITICAL | Person holding weapon + unsafe pose |
## Features
✅ **Automatic Capture** - No manual screenshots needed
✅ **Instant Storage** - Saved to local `uploads/detections/` folder
✅ **Real-time Gallery** - Updates every 5 seconds
✅ **Secure Access** - Only your detections visible to you
✅ **Fast Retrieval** - Thumbnail preview with instant details
✅ **Timestamped** - Exact time of each detection recorded
## File Storage Location
All screenshots saved to: **`uploads/detections/`**
Files are named: `detection_{type}_{date}_{time}_{id}.jpg`
Example: `detection_weapon_20250503_143022_a7f2b1c3.jpg`
## Common Use Cases
### 🏢 Security Monitoring
```
1. Start camera in lobby/entrance
2. Enable weapon + violence detection
3. Monitor gallery for threats
4. Escalate alerts to security team
```
### 👮 Incident Investigation
```
1. Review captured screenshots from incident time
2. Click detections to see high-res images
3. Export screenshots as evidence
4. Document timeline with timestamps
```
### 📋 Audit & Compliance
```
1. System automatically logs all detections
2. Each detection has timestamp and confidence
3. Create incident reports with evidence
4. Archive screenshots for compliance
```
## Keyboard Shortcuts
| Action | Shortcut |
| ------------------ | -------- |
| Start/Stop Camera | Space |
| Toggle Recording | R |
| Fullscreen View | F |
| Refresh Detections | Ctrl+R |
## Tips for Best Results
1. **Good Lighting**: Ensure adequate lighting for detection
2. **Clear View**: Keep camera unobstructed
3. **Proper Angle**: Position camera to capture potential threats
4. **Multiple Models**: Enable multiple detection types for better coverage
5. **Regular Review**: Check gallery frequently during monitoring
## Storage Management
- Each screenshot is ~500KB (typical 1080p JPEG)
- 100 detections = ~50MB
- Consider archiving old detections to save space
- Monitor disk usage: `uploads/detections/` folder
## Export & Reporting
To save detection screenshots:
1. Click on detection in gallery
2. Right-click image → "Save image as..."
3. Use for incident reports or compliance documentation
## Support & Troubleshooting
**Camera Not Starting?**
- Ensure USB camera is connected
- Try different USB port
- Restart browser
- Check camera drivers installed
**No Detections Appearing?**
- Verify at least one model is selected
- Camera must be running (green indicator)
- Check if unusual activity actually present
- Review model confidence thresholds
**Screenshots Not Saving?**
- Check folder permissions on `uploads/detections/`
- Ensure sufficient disk space
- Check browser console for errors (F12)
- Contact admin if folder missing
---
**Ready to go?** Start the live camera and monitor unusual activity! 🎥
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