Human Biometric Analysis
Finger, Eye & Skin Detection
Uses MediaPipe to analyze human anatomy for incorrect finger counts, asymmetric eyes, unnatural skin texture, and other anatomical anomalies common in AI-generated faces.
So funktioniert's
AI image generators frequently struggle with human anatomy, especially hands and faces. Using MediaPipe machine learning, this detector counts fingers, measures eye symmetry, analyzes facial proportions, and examines skin texture patterns.
Fingers
Count all digits
Eyes
Check symmetry
Face
Analyze proportions
Skin
Texture analysis
Frequently Asked Questions
Why do AI images have wrong finger counts?
AI models learn hand appearance from training data without understanding that humans have exactly 5 fingers. They often generate 4, 6, or merged fingers because hands are complex and variable in photos.
How does eye symmetry detection work?
MediaPipe detects 468 facial landmarks and measures the ratio between eye sizes, positions, and angles. Real faces have natural asymmetry within specific ranges, while AI often creates unnaturally symmetric or asymmetric eyes.
Can this detect AI-generated portraits?
Yes, especially portraits with visible hands or multiple people. Even high-quality AI portraits often have subtle facial proportion errors or unnatural skin smoothness that this detector identifies.
What skin texture anomalies are detected?
The detector analyzes pore patterns, wrinkle consistency, and texture frequency. AI skin often lacks natural pore variation, has overly smooth areas, or shows repetitive texture patterns not found in real skin.
Does this work on cartoon-style images?
Biometric analysis is most effective on photorealistic images. Cartoon or stylized art intentionally deviates from human anatomy, so other detection methods are more suitable for those styles.
What facial proportions are checked?
The system measures eye-to-nose ratio, nose-to-mouth distance, face width proportions, and ear placement. AI often generates faces that look good at first glance but have proportions outside natural human ranges.
Is MediaPipe required for detection?
MediaPipe provides the best accuracy, but the system includes fallback methods using OpenCV Haar cascades when MediaPipe is unavailable. The fallback has reduced accuracy but still detects major anomalies.
How effective is this against DALL-E 3?
DALL-E 3 has significantly improved hand generation, but still makes errors in complex poses or multiple hands. The detector catches these remaining issues, though accuracy is lower than with older models.
What happens if no humans are in the image?
If no humans, hands, or faces are detected, this method returns a neutral score (0.5) and other detection methods carry more weight. The ensemble system automatically adjusts for content type.
How fast is biometric analysis?
MediaPipe is optimized for real-time processing. Full biometric analysis typically completes in 200-500ms on CPU, making it suitable for production use without significant latency.
Verwandte Methoden
ML-Erkennung
Unsere ML-Erkennung nutzt modernste Transformer-Modelle, die auf Millionen von Bildern trainiert wurden.
PRNU-Analyse
Photo Response Non-Uniformity (PRNU) detects unique camera sensor fingerprints from manufacturing imperfections. AI images cannot replicate these authentic sensor signatures.
Frequenzanalyse
Die Frequenzdomänenanalyse untersucht die Verteilung von Hoch- und Niederfrequenzkomponenten in einem Bild. KI-generierte Bilder fehlt typischerweise das natürliche Hochfrequenzrauschen echter Fotografien.
Gradientenanalyse
Analyzes edge patterns and texture characteristics using Sobel, Canny, and Laplacian operators. AI images often have unnaturally smooth or uniform gradients.
Rauschmuster
Echte Fotografien enthalten einzigartige Rauschmuster von Kamerasensoren, die über das Bild variieren. KI-generierte Bilder haben eine unnatürlich gleichmäßige Rauschverteilung.
Metadatenanalyse
Bildmetadaten enthalten wertvolle Hinweise auf den Ursprung. Wir analysieren EXIF-Daten, Softwaresignaturen und andere eingebettete Informationen, um KI-Generierungswerkzeuge zu identifizieren.
GAN-Fingerabdruck
Erkennt GAN-spezifische Artefakte wie Schachbrettmuster, Farbbanding und spektrale Anomalien.
Texturanalyse
Local Binary Pattern Analyse für Texturanomalien in KI-generierten Bildern.
Anatomische Erkennung
KI-Bildgeneratoren erzeugen oft anatomische Fehler, die Menschen sofort als falsch erkennen. Wir nutzen Computer Vision, um diese verräterischen Fehler zu erkennen.
C2PA-Verifizierung
C2PA (Coalition for Content Provenance and Authenticity) ist ein Industriestandard zur Verfolgung von Ursprung und Geschichte digitaler Inhalte durch kryptografische Signaturen.
Semantic Inconsistency Detection
Detects logical inconsistencies like incorrect shadows, impossible perspectives, distorted reflections, and violations of physical laws that AI often produces.
Lighting Physics Validation
Validates light source consistency, shadow direction physics, specular highlight accuracy, and color temperature uniformity across the image.
Compression Artifact Analysis
Analyzes JPEG compression artifacts to estimate quality levels and detect re-compression patterns that indicate image manipulation or AI generation.
Edge Sharpness Analysis
Analyzes sharpness distribution across the image and validates depth-of-field consistency. AI often produces unnaturally uniform sharpness.
Statistical Pattern Analysis
Analyzes statistical properties including Shannon entropy, histogram patterns, and Benford's Law compliance to detect synthetic image characteristics.
Chromatic Aberration Analysis
Detects the absence of chromatic aberration (color fringing) that real camera lenses produce. AI images lack these optical artifacts.
Micro-Texture Analysis
Analyzes microscopic texture patterns for repetition, uniformity, and unnatural randomness that AI generators often exhibit.
Color Palette Analysis
Analyzes color distribution including saturation levels, color diversity, and white balance consistency. AI images often have oversaturated colors.
Ihr Bild Prüfen
Alle Methoden werden mit gewichteter Bewertung kombiniert, um ein endgültiges Urteil mit Konfidenzniveau zu erzeugen.
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