Face recognition: implementation and common models

Overview of common face recognition models (VGGFace, FaceNet, ArcFace, OpenFace, Dlib) and the implementation pipeline: detection, feature extraction, matching.

Build a Face Recognition System with ESP32-CAM

Guide to building an ESP32-CAM face recognition security camera: hardware overview, wiring and FTDI programming, Arduino IDE setup, CameraWebServer code and web UI steps.

Car Touchscreen Unresponsive: Troubleshooting Tips

Troubleshoot unresponsive vehicle touchscreen: restart, clean, check power, recalibrate, update firmware or apps, and contact a service center if needed.

Face Landmark Detection with Python and OpenCV

Guide to face landmark detection on Raspberry Pi using OpenCV and dlib: setup, dependency installs, Pi camera capture, and Python code to visualize 68 facial landmarks.

Haptic UX: Designing Touch Feedback

Guide to haptic feedback and Haptic UX design: principles, construction methods, pattern tuning, testing, and best practices for purposeful tactile interactions.

Capacitive Touch Fundamentals and Two Sensing Types

Technical overview of capacitive sensing methods and sensor geometries, explaining self-capacitance and mutual-capacitance principles and 0D-3D touch sensors.

Capacitive Touchscreen Design Principles and Circuit Layout

Introduction to capacitive touch panel design covering electronic principles, touch controller ICs, ITO patterning, layout, grounding, ESD and structural stackups/materials.

Face Recognition on Raspberry Pi Using OpenCV

Build a Raspberry Pi face recognition system with OpenCV: trainer and real-time recognizer using Haar cascade detection, LBPH training, and YML model storage.

Tactile Sensor Technologies for Soft Robotic Hands

Review of tactile sensing for soft robotic hands: sensor types, sensing modalities, system integration, applications, challenges and research directions.

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.

Under-display Fingerprint Sensors: Operation and Challenges

Technical overview of under-display fingerprint sensing, focusing on optical approaches, OLED compatibility, vendor landscape, and integration challenges.

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.

Side vs In-Display Fingerprint: Which Is More Efficient?

Compare in-display fingerprint vs side-mounted sensor: technical principles, capacitive vs optical performance, interference resilience and usability trade-offs.

Face Fusion with Deep Learning: Technical Analysis

Practical engineer's guide to face fusion using Delaunay triangulation, affine transforms and seamless cloning, covering landmark workflows and triangle-based warping.

Face vs Fingerprint Recognition: Security, Pros and Risks

Comparison of face recognition and fingerprint recognition: explains biometric principles, security trade-offs, advantages, risks, and implementation considerations for deployment.

Gaussian Filter: Principles and Implementation

Explanation of Gaussian filter, kernel generation and separable implementation in C++/OpenCV, with guidance on sigma selection and performance trade-offs.

Deep learning-based face detection and recognition

Technical overview of face recognition pipeline and 68-point facial landmark localization using dlib and OpenCV, with a Python example for detection, ROI extraction, and visualization.

How Capacitive and Other Touchscreens Detect Input

Technical overview of capacitive screen operation and touchscreens: capacitive sensing, sensor arrays, multi-touch, plus resistive and pressure-based detection methods.

Capacitive Touchscreen Structure and Principle

Technical overview of capacitive touchscreen structure and sensing principle, covering ITO layers, electrode placement, coupling capacitance, and touch coordinate calculation.

Can facial recognition reduce retail theft?

Analysis of facial recognition in retail: how connected databases, camera placement and privacy concerns affect its effectiveness against shoplifting and evolving theft tactics.