MIRAGE: Full-Body Bystander Privacy for Smart Glasses with Consent-Based Restoration
MIRAGE masks full-body biometrics on smart glasses and restores footage only with consent.
MIRAGE is a three-tier privacy system for smart glasses that conceals full-body biometric cues, including gait, posture, and silhouette, while allowing synthetic body replacement and encrypted consent-based restoration. It was implemented on a Raspberry Pi 5, companion phones, and a cloud generative backend. Visible-body detection reaches 0.948 average precision and 0.976 average recall. Bounding-box masking reduces silhouette re-identification to 10.86% Rank-1 versus an 11.12% chance level, and adaptive gait identification falls from 90.25% to 26.20% Rank-1.
- Hides gait, posture, and silhouette, not only faces.
- Body detection reaches 0.948 AP and 0.976 AR.
- Silhouette re-identification falls to about chance level.
- Adaptive gait Rank-1 drops from 90.25% to 26.20%.
- Products
- MIRAGERaspberry Pi 5
From the original article
1 min read at arxiv.orgVideo recording on smart glasses exposes more than faces. Continuous capture reveals full-body biometric signatures, including gait, posture, and silhouette, that enable person re-identification (ReID) even after conventional face sanitization.
By Muhammad Umair · arxiv.org
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