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138 BYTES · WORLD'S SMALLEST FACE TEMPLATE

Face Identity in 138 Bytes.
Industry-Leading Compression.

Condenses a full facial identity vector into approximately 138 bytes using our proprietary compression techniques — enabling face verification via QR codes, smart cards, and bandwidth-constrained environments without compromising matching precision.

138
Bytes
Template size
99%+
Accuracy
Retained precision
QR-Ready
Format
Fits standard QR
< 100ms
Encoding
Generation time

FaceCode & FaceAuth Flow

Edge-native encoding in just 138 bytes FaceCode and Offline verification.

1

Face Capture & IDBIO Liveness

Single-frame passive liveness with 3D depth check using the IDBIO PAD engine. No user friction, works on any device.

2

138-byte FaceCode → QR

World's smallest face template at 138 bytes — FaceCode. QR Ready. On-device. Irreversible by design. Expandable upto 520 bytes for extreme precision.

World's Smallest < 100ms
3

Scan QR → Liveness → Match → Verdict

Scan QR, capture live face, verify liveness, match against stored FaceCode. Fully offline — no cloud required. Instant matched / no-match verdict.

Offline < 20ms Match Privacy by Design
FaceCode Template
138
bytes
World's Smallest
IDBIO FaceCode
IDBIO FaceCode
IDENTITY MATCHED
FaceCode · IDBIO · Offline
99.4%Match
138BTemplate
14msLatency
IDBIO FACECODE · #FC-2026-A3F1
NO MATCH
Identity not verified
18.2%Match
138BTemplate
12msLatency
IDBIO FACECODE · ACCESS DENIED
idbio idbio.ai FaceCode
ENROLMENT · 1 / 3
Face & Liveness
Align face within the box
—Liveness
—Template
—Match

FaceCode Architecture

A multi-stage dimensionality reduction pipeline designed to compress rich face embeddings into ultra-compact representations while preserving critical discriminative identity features.

Proprietary Feature Extraction

Extracts highly discriminative facial features using our advanced proprietary AI model, ensuring optimal inter-class separation before compression.

Advanced Quantization & Compression

Applies proprietary templatization technique to compress and represent a face in just 138 bytes while maintaining >99% of original matching accuracy.

High-Speed Matching

Optimized distance computation allows FaceCode templates to be matched against other FaceCodes or captured face with sub-20ms latency.

Privacy & Irreversibility

One-way cryptographic-like transformation. The original face image cannot be reconstructed from the 138-byte code — biometric privacy by design.

Size Comparison

FaceCode (IDBIO)138 bytes
Quantized Open-Source Embedding512 bytes
ISO 19794-5 Template2 KB
Standard 512-D Embedding2–4 KB
JPEG Face Image5+ KB

FaceCode achieves massive compression ratios over standard and open-source face templates

Technical Specifications

Template Size138 bytes
Encoding Time< 100ms
Decoding & Matching Time< 20ms
Accuracy Loss< 1% vs full vector
ReversibilityIrreversible (one-way)
InteropOneCode, QR, NFC/RFID
PlatformsiOS, Android, Server

Deploy FaceCode SDK

Get in touch with our engineering team for deployment requirements and integration timeline.

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