What Is Image Proctoring?
Image proctoring is a lightweight integrity method that captures still-frame photos of a candidate at regular intervals during an online interview or assessment. The snapshots—taken via webcam—are time-stamped, compared for facial consistency, and scanned for red-flag cues (extra faces, mobile phones, second monitors). It offers fraud deterrence when full video streaming isn’t possible because of bandwidth, privacy, or cost.
How Image Proctoring Works in a Hiring Workflow
| Stage |
What Happens |
Integrity Check |
| 1 • Consent & Calibration |
Candidate grants webcam access; system frames the face |
Ensures clear baseline image |
| 2 • Timed Captures |
Software grabs still images every 20–60 seconds |
Face-match vs. baseline; detects multiple people |
| 3 • Screen Snapshot (optional) |
Parallel screen image recorded |
Flags new tabs, IDE changes, external docs |
| 4 • AI Analysis |
Images scanned for pose change, extra devices, absence |
Immediate flag to interviewer or log |
| 5 • Audit Report |
Sequence of images + flag list saved |
Recruiter reviews only if anomalies appea |
Why Recruiters Use Image Proctoring
- Bandwidth Friendly — runs smoothly on low-speed connections where HD video can’t.
- Privacy Centric — stills consume less data, often meeting stricter privacy or region-specific regulations.
- Cost Efficient — lower compute/storage footprint than continuous video.
- Layered Security — pairs well with AI Proctoring flags or post-interview human review.
Key Benefits
- Fraud Deterrence — discourages proxy interviewers & off-camera coaching
- Global Reach — reliable in regions with unstable internet
- Light Storage — saves images rather than large video files
- Review on Demand — recruiters open the image log only when flagged
Common Hiring Scenarios
- High-volume campus interviews in areas with limited bandwidth
- Early-stage AI screening interviews where cost per candidate must stay minimal
- Confidential roles that disallow full video recording by policy
- Disaster-recovery fallback when live-stream proctoring fails mid-session
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