BRAC CIN: Face Recognition & Identity Review
Identity-aware banking surveillance using InsightFace embeddings, FAISS similarity search, whitelist and blacklist categories, unknown-person enrollment, and a review workflow for registry quality.
Module of BRAC CIN; presented as a separate case study.
Workflow at a glance
Detect faces
Prepare visible face crops from camera frames.
Compare embeddings
Search registered embeddings for similarity.
Assign review state
Separate registry matches and unknown faces.
Review registry
Store evidence for identity review workflows.
Project facts & reported results
Implementation fact
Implementation fact
Implementation fact
Project Overview
Problem Statement
Long-running face registries can accumulate low-quality or incorrect enrollments, especially under low light, occlusion, and changing ATM camera views.
Approach & Methodology
Engineered multi-camera pipeline using InsightFace for face detection and ArcFace for 512-dimensional embedding generation. Built an interactive web review panel for security officers to validate WL/BL matches and audit face registry quality. Implemented automated registry pollution detection scripts and a background daemon for reliable alert posting.
Outcome & Scope
Combines real-time matching with a human review queue, registry audit tools, and decoupled alert delivery for maintainable identity operations.
Technical Challenges & Solutions
Face Registry Pollution
Poor quality face images from blurry or low-light video clips polluted the face database, causing incorrect matches over time.
Developed automated registry pollution audit scripts and created a web-based review dashboard for security personnel to audit and re-enroll clean face samples.
System Architecture
Two-process surveillance system with real-time face embedding and web audit dashboard
Key Components:
InsightFace + ArcFace pipeline extracting 512-dimensional vectors from camera frames
Compares face vectors against whitelist/blacklist registry using cosine distance
Interactive HTML/Flask dashboard for security officers to review matches and submit feedback
Tooling for identifying corrupted embeddings and restoring clean registry state
Asynchronous queue manager posting verified face events to CIN API
Key Features & Capabilities
Real-time face detection & tracking across multiple ATM cameras
InsightFace detection + ArcFace 512-dimensional embedding extraction
Whitelist/Blacklist (WL/BL) match classification with customizable thresholds
Web-based interactive review dashboard for security audit and match feedback
Registry pollution audit & automated face registry reset/recovery scripts
Asynchronous alert daemon dispatching confirmed matches to CIN API