How Fingerprint Unlock Works

Overview of fingerprint recognition: pattern types, optical/capacitive/RF capture methods, processing workflow from quality evaluation to feature extraction and matching.

Fujitsu PalmSecure Palm Vein Recognition Principle

Technical overview of Fujitsu PSD-C86 palm vein recognition terminal: non-contact liveness authentication, split sensor configuration, and high-precision biometric performance.

Fingerprint Recognition: Types and Principles

Overview of fingerprint recognition: feature extraction, enrollment/verification, template use, and sensor technologies — optical, capacitive, and ultrasonic.

Flexible Strain Sensor for Gesture Recognition

Flexible strain sensor (serpentine meander, GF>1000) combining high sensitivity and mechanical robustness, integrated into a wearable system for real-time sign language translation.

Palmprint Recognition: How It Works vs Fingerprint

Overview of palmprint recognition for payments: CIS imaging (global-shutter vs rolling-shutter, BSI+global-shutter), algorithm pipeline, vein verification, and market trade-offs.

Multimodal e-skin for synchronous tactile sensing

e-skin using stress-field sensing to reconstruct 3D forces and object hardness, enabling modular, curved-surface tactile sensing.

Stretchable Multichannel sEMG Array for Gesture Recognition

Stretchable bipolar sEMG electrode array with onboard Bluetooth and a graph neural network (GNN) using self-attention to classify 18 static and dynamic gestures.

Capacitive Touch Key Design for Bluetooth Door Locks

Capacitive touch-key design with CH582/CH583 Bluetooth SoCs and drive shielding: prototype signal improvement, reference schematic, and low-power operation (~15 uA standby).

Deep Learning-Based Ear Recognition Overview

University of Georgia ear recognition biometric study: enrollment/verification, DenseNet-based algorithm, higher accuracy on WVU/USTB datasets and robustness to image degradation.

Under-Display Fingerprint Methods and Development Trends

Overview of under-display fingerprint recognition technologies (optical, ultrasonic, capacitive), comparing implementation trade-offs, production readiness, and industry trends.