Camera Placement
Use an entrance or lobby view that shows arms and nearby people. Check lighting, scale, and occlusion on site.
Hands Up Detection for Camera Review
Hands Up Detection brings a person with both hands raised to an operator for review.
The Visible Condition
Describe What the Camera Can Show
The observable condition is a person with both hands raised at a bank lobby or retail entrance. A frame can bring the scene to an operator. It cannot establish intent, cause, or the right response.
A raised-hands prompt can bring an unusual posture to the control room. The operator still needs the wider view: people can raise their hands for ordinary reasons, and the same image set also depicts people on the floor. Keep those two visible conditions in separate prompts so staff know what matched.
An authorized operator can enter a plain-language prompt such as “Alert when a person has both hands raised in the monitored lobby.” StreamVLM™ evaluates sampled live frames from selected cameras against it. A match enters the IREX event flow.
Each detector has its own confidence threshold and alert cooldown. The team tests wording and settings on its cameras.
StreamVLM™ evaluates sampled frames, so a brief action can fall between samples. Test the actual camera view and response timing before relying on this prompt for an urgent event.
This prompt can be evaluated alongside the Weapon & Gunshot Detection trained module. Compare their frame-rate needs and operational fit during a site-specific pilot.
Explore StreamVLM™Operational Fit
Plan the View and Review
Operator Decision
The reviewer should check the surrounding scene for a welfare or security concern. The prompt does not decide this automatically.
Likely False Matches
Check for a greeting, stretching, or reaching for a shelf. Tune camera selection and alert settings during a pilot.
Illustrative Camera Frames
Raised Hands Are a Cue to Check the Whole Room
Synthetic frames illustrate possible matches. They are not real incidents, deployments, or accuracy evidence.
Hands raised
Raised Hands at the Service Desk
Several people have their hands raised in the synthetic bank hall. Review the wider scene rather than treating posture as proof of duress.
On the floor
People on the Floor
This second frame shows people prone on the banking floor. It illustrates a different visible condition and should be described by a separate prompt.
Mixed scene
Two Postures in One View
People on the floor and tellers with raised hands appear together. An operator checks the full clip to understand why both conditions appeared.
From Prompt to Action
How an Alert Becomes a Decision
- 01
Describe and Select
Use observable wording such as “Alert when a person has both hands raised in the monitored lobby.” on cameras that show the complete relevant scene.
- 02
Review the Event
Open the match and surrounding footage. Compare with ordinary scenes such as a greeting, stretching, or reaching for a shelf.
- 03
Apply the Site Procedure
Staff follow the site security procedure after reviewing the scene. Raised hands alone do not establish robbery or duress.
Pilot Questions
Validate on Your Cameras
- Visibility
- Can the view consistently show a person with both hands raised? Test representative lighting, weather, and occlusion.
- False Alerts
- Sample ordinary scenes, especially a greeting, stretching, or reaching for a shelf, then tune prompt, threshold, and cooldown.
- Human Review
- Agree who checks a match and how to check the surrounding scene for a welfare or security concern. No universal accuracy figure is published for this prompt.
FAQ
What does hands up detection report?
It reports a match to a described visible condition: a person with both hands raised. An operator reviews footage before deciding what happened.
Can a match establish intent or liability?
No. A sampled frame cannot establish intent, authorization, responsibility, or cause. Staff check context and follow local procedure.
Will raised hands alone identify a robbery?
No. The posture does not identify a weapon, threat, or criminal act. Review the broader scene and follow the site security procedure.
How should we evaluate it?
Test representative cameras and ordinary scenes, including a greeting, stretching, or reaching for a shelf. Agree on useful alerts and missed events. IREX does not publish a universal accuracy figure for this prompt.
Test Hands Up Detection on Your Cameras
Choose representative views of a bank lobby or retail entrance. We can scope the prompt, alert settings, and review procedure for a pilot.