Verified Accuracy helps ensure your drone maps meet the highest standards for accurate measurements and comparisons. When we detect potential accuracy issues with your map, we'll alert you with specific guidance on how to improve future flights.
For maps where we can't automatically determine the cause of accuracy issues, our team will review your map and reach out with personalized recommendations.
How it works
1. Automatic Accuracy Analysis
When your map finishes processing, we automatically check for common accuracy issues.
2. Important Alerts
If we detect accuracy issues, you'll see alerts in three places.
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On the Explore Page
A yellow symbol will appear next to maps with alerts in the map selector.
Look for the yellow Accuracy Alerts box in your map details sidebar.
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Click the Learn more links for detailed guidance.
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In Your Email
You'll receive specific warnings in your map completion email.
Appears in a yellow Accuracy Alerts box with specific recommendations.
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Each warning explains the issue and how to fix it for next time.
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In Your Processing Report
Download the Map Processing Report PDF.
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Review detailed accuracy statistics and parameters.
3. Expert Review When Needed
When complex accuracy issues arise that require further investigation, our accuracy specialists will take the following actions:
Review your map processing details.
Investigate the root cause of the accuracy issue.
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Contact you with personalized recommendations.
You'll be contacted via email if your map requires expert review.
Understanding Your Map’s Accuracy
Accuracy Alert Thresholds
We automatically check your map against industry-standard accuracy thresholds. Alerts are triggered when errors exceed these limits.
Accuracy Check |
Alert Threshold |
What It Means |
|---|---|---|
GCP Positioning |
> 5 cm (2 inches) |
Your GCPs do not align accurately to their reported position |
GCP Elevation |
> 10 cm (4 inches) |
GCP heights differ significantly from the map surface |
Checkpoint Verification |
> 5 cm (2 inches) |
Your verification checkpoints show larger than normal error in your map |
GPS Corrections |
Camera error > 5x GPS trust |
There are RTK/PPK corrections issues |
Frequently Asked Questions (FAQs)
Q: Do I need to do anything if I receive an accuracy alert?
A: For future maps, review the alert recommendations and adjust your GCP placement, targets, or flight parameters for next time.
For this map, if the alert is for information only, you can still use the map for general purposes. For precise measurements, we recommend creating a new map with improved accuracy controls.
Q: Will someone contact me about every accuracy alert?
A: No. When we can automatically identify the issue and provide specific guidance (like "Insufficient GCP Coverage"), you'll receive the alert, but no additional contact.
You'll only be contacted by our team for complex issues that require expert investigation.
Q: How do I enable Accuracy Alerts and Review for my project?
A: Accuracy Alerts and Review are available for select customers. To learn more:
Navigate to Project Settings.
Look for Accuracy Alerts and Review.
Enable the feature for your project.
Configure which users should receive alerts.
Contact your account manager if you do not see this option.
Q: Can I disable these alerts?
A: Yes. If you prefer not to receive accuracy alerts:
Navigate to your project settings
Go to Accuracy Alerts and Review.
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Adjust your notification preferences.
Q: Can I reprocess my map to fix accuracy issues?
A: In most cases, no. Accuracy issues typically stem from:
GCP placement (physical location on site)
GCP target quality
Flight parameters (altitude, overlap, etc.)
Weather conditions during flight.
These can only be corrected by flying a new map with improved controls.
Exception: If accuracy issues are due to GCP tagging errors, you can sometimes retag GCPs and reprocess.
Want to learn more?
V2.2