How to Fix Frigate Detecting Shadows as People
- Zone and mask tuning gaps
- confidence threshold too low
- camera exposure causing silhouette artifacts
Problem Description
When your Frigate Frigate False Person Detections isn't working as expected, it usually traces back to one of a small number of causes — this guide covers them in order, starting with the most likely.
Symptoms
- Frequent false person alerts
- No subject in clip
- Happens during sun angle changes
Recognize these? Here's what usually causes it.
Common Causes
- Zone and mask tuning gaps
- confidence threshold too low
- camera exposure causing silhouette artifacts
Most fixes happen in the first 3 steps.
Do not globally raise thresholds if only one camera has shadow issues.
Tools & Requirements
Step-by-Step Solution
Review false-positive clips
Identify repeat angle/time conditions creating shadow artifacts.
Tune confidence + filters
Increase threshold for person class where needed.
Refine scene conditioning
Use masks/exposure changes to suppress shadow artifacts.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If the sensor still misses events after repositioning, check whether a scheduled 'home' or 'away' mode is overriding the sensitivity setting silently.
False-positive tuning should be time-of-day aware for outdoor cameras.
This issue almost always looks more complex than it is — the majority of cases trace back to a single setting, a stale credential, or a default that shipped wrong.
- Zone and mask tuning gaps
- confidence threshold too low
- camera exposure causing silhouette artifacts
Before you go — try one of these (they fix most cases).
Need More Help? Frigate Support
Note: The contact information below connects you directly to Frigate's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.