Acquiring/Recognising Eyes TRIZ Cases
- Drowsiness Detection Using Dynamic Eye Thresholds
A drowsiness detection circuit calculates a vertical histogram of the eye region to determine pixel height for closed-eye identification.
- Implicit User Interaction Scoring via Gaze and Device Data
A dynamic scoring model merges facial gaze detection with client device interaction data to estimate user attention levels.
- Stereo Infrared Gaze Detection for Head Movement
Triangulation of dual infrared camera images determines precise 3D eye location, accommodating head movement without requiring user-worn equipment.
- Adaptive Red-Eye Correction via Patch Classification
A classifier assigns red-eye patches to standard or modified correction classes.
- Unified Biometric Enrollment for Electronic Devices
Electronic device acquires biometric data from multiple sensors simultaneously, reducing tedious enrollment time and complexity.
- Polarized Eye Authentication Combining Cornea and Iris Data
A control circuit generates amplitude, phase, and average images from polarized light to authenticate users via unique corneal and iris optical characteristics.
- Holographic Waveguide Eye Tracker Using Grating Lamina
Grating lamina deflects light via waveguides to resolve bulky optics trade-offs in HMD integration.
- Dual-Band Fluorescence Spoof Detection in Biometric Systems
Excites human tissue fluorescence via dual-band illumination to distinguish live persons from photographs or masks, resolving spoofing security risks.
- Biometric Spoof Detection via Reflection Intensity Variations
A biometric detection system analyzes reflection intensity variations captured under different illumination conditions to classify objects.
- Adaptive Iris Matching via Partial Code Indexing
Adaptive iris matching processes visible regions without full segmentation to index databases using partial codes.
- Biometric Eye Recognition Using Augmented Image Training
Simulated occlusion training enables accurate iris recognition without explicit parameter recovery under relaxed user conditions.
- Iris Recognition Anti-Cheating System for Online Exams
An anti-cheating system uses iris recognition to verify examinee identity during online assessments.
- 3D Gaze Tracker Using Time-of-Flight Camera for Head-Free Tracking
A 3D gaze tracker combines time-of-flight and picture cameras to determine gaze vectors without headgear.
- Eye Tracking Feedback for Attention Concentration
Automated eye tracking captures gaze position to provide real-time attention feedback, resolving insufficient manual feedback during concentration exercises.
- Eyelid Detection Using Sobel Edge Extraction
A detection apparatus extracts eyelid candidate lines using a Sobel filter to calculate position parameters.
- Optoelectronic Semiconductor Component with Integrated Reflector Lens
An integrated optical component combines a reflector recess and lens to enhance mechanical stability while reducing assembly complexity in biometric sensors.
- Lateral Gaze Angle Estimation via Eye Separation
A video camera system measures inter-pupil distance to determine lateral gaze angle using inverse cosine calculations.
- Red Eye Detection Using Probability and Classification
Probability-based detection distinguishes red eyes from faces, reducing artifacts without pre-flash hardware.
- Iris Authentication Color Contact Lens Detection
Multi-wavelength spectral analysis detects color contact lenses on the iris, resolving authentication accuracy issues caused by artificial iris color changes.
- Line-of-sight correction using individualized facial data
A line-of-sight correction unit applies personalized dictionary data to detected face features for accurate orientation tracking.
- Iris Recognition Terminal Eyeball Reflection Unit
An eyeball reflection unit guides user alignment for accurate iris recognition.
- Imaging System with Dynamic Mirror Adjustment
Dynamic mirror positioning resolves the contradiction between simplified common mirror configurations and accurate imaging at varying focal lengths.
- Head Imaging Biometric Authentication for Access Control
A head imaging sensor module captures facial and ocular data to authorize device access.
- Duplex Camera Iris Imaging via Wavelength Selective Mirror
A duplex camera system uses a wavelength selective mirror to separate visible and infrared light for simultaneous face and iris imaging.
- Eyelid Detection via Hierarchical Face Segmentation
Hierarchical segmentation isolates the eye region to reduce processing load while minimizing errors from ambient light and glasses frames.
- Iris Recognition Camera Guidance via Color Preview
Color camera navigation guides users into the narrow infrared field of view, resolving the trade-off between recognition reliability and ease of operation.
- Infrared Eye Scanner for Secure User Identification in Eyewear
An infrared eye scanner integrates an emitter and camera to capture reflection variations from the user's eye.
- Ophthalmologic Visualization System Limbus Pupil Detection
Ring filter correlation locates limbus and pupil boundaries despite blood obscuration, improving surgical precision.
- Iris Recognition Excluding Eyelash Occlusions via Threshold Brightness
An iris recognition device determines threshold brightness from a reference area to exclude target pixels in candidate regions.
- Suspicious Person Detection Using Eye and Face Direction with Environment Information
A detection device analyzes eye direction, face direction, and surrounding object arrangement to identify suspicious behavior.