Facial Recognition--人脸识别
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Images must all be the same size and normalized Uses Data compression to reduce the detentions of the data and removes information that is not useful Decomposes facial structure into orthogonal components known as eigenfaces, stored in a 1D array
Biblioteka Baidu
Pro: Only needs 1/1000 of data presented
Con: Needs full frontal face
LDA
Each face is represented by a large number of pixel values
Used to reduce number of features to a more manageable number before classification
MSU-data clustering, statistical pattern recognition, face detection in color images, the use of faces and fingerprints for personal identification, and kernel principal component analysis. UCSD- use of shape contexts for object recognition, slow feature analysis, classifying facial actions, and face recognition using independent component analysis.
Applications
Law enforcement
Facial recognition using various databases SocialCamera SceneTap FaceR Celebrity TV set top box
Mobile applications
In 2002- 90% verification and 1% false accept rates
FRGC
Facial Recognition Grand Challenge
Evaluated the latest in face recognition algorithms Used:
High Resolution photos 3D Face Scans Iris images
10x more effective then 2002 100x more effective than 1995
PCA
Pioneered by Kirby and Sirivich in 1988
Given a still or video image of a scene, Identify or verify one or more persons in the scene using a stored database of faces
A Brief History
1960’s
Fishers Faces
Maximize between-class variance Minimize within-class variance
EBGM
Relies on concept of nonlinear features
Lighting Pose
Expression
Facial Recognition
By Lisa Tomko
Overview
What is facial recognition? History The Face Recognition Technology Evaluation
The Face Recognition Vender Test
Creates a dynamic link architecture that projects the face onto a grid Garbor jet is a node which describes image behaviors around pixels Garbor filter extracts shapes and detects features Accurate land mark localization is needed
Facial Recognition Grand Challenge Principle Components Analysis Linear Description Analysis Elastic Bunch Graph Matching
Applications
Research
What is facial recognition?
1988
1991
Real time automated face recognition
Implemented in 2001 super bowl
FERET
1993-1997 The Face Recognition Technology Evaluation Sponsored by Defense Advances Research Products Agency
Encouraged development of face recognition algorithms
FRVT
2000, 2002, and 2006
The Face Recognition Vender Test Evaluate work of FERET Assess commercial facial recognition Educate public
First semi-automated system Programs designed by Woody Bledsoe, Helen Chan Wolf and Charles Bisson. Linear algebra technique implemented Less than 100 values needed to align and normalize a face. Turk and Pentland
Questions
Entertainment
Areas of Research
MIT-multidimensional morphable models, view-based human face detection, cortex-like mechanisms, and object detection by components.
Biblioteka Baidu
Pro: Only needs 1/1000 of data presented
Con: Needs full frontal face
LDA
Each face is represented by a large number of pixel values
Used to reduce number of features to a more manageable number before classification
MSU-data clustering, statistical pattern recognition, face detection in color images, the use of faces and fingerprints for personal identification, and kernel principal component analysis. UCSD- use of shape contexts for object recognition, slow feature analysis, classifying facial actions, and face recognition using independent component analysis.
Applications
Law enforcement
Facial recognition using various databases SocialCamera SceneTap FaceR Celebrity TV set top box
Mobile applications
In 2002- 90% verification and 1% false accept rates
FRGC
Facial Recognition Grand Challenge
Evaluated the latest in face recognition algorithms Used:
High Resolution photos 3D Face Scans Iris images
10x more effective then 2002 100x more effective than 1995
PCA
Pioneered by Kirby and Sirivich in 1988
Given a still or video image of a scene, Identify or verify one or more persons in the scene using a stored database of faces
A Brief History
1960’s
Fishers Faces
Maximize between-class variance Minimize within-class variance
EBGM
Relies on concept of nonlinear features
Lighting Pose
Expression
Facial Recognition
By Lisa Tomko
Overview
What is facial recognition? History The Face Recognition Technology Evaluation
The Face Recognition Vender Test
Creates a dynamic link architecture that projects the face onto a grid Garbor jet is a node which describes image behaviors around pixels Garbor filter extracts shapes and detects features Accurate land mark localization is needed
Facial Recognition Grand Challenge Principle Components Analysis Linear Description Analysis Elastic Bunch Graph Matching
Applications
Research
What is facial recognition?
1988
1991
Real time automated face recognition
Implemented in 2001 super bowl
FERET
1993-1997 The Face Recognition Technology Evaluation Sponsored by Defense Advances Research Products Agency
Encouraged development of face recognition algorithms
FRVT
2000, 2002, and 2006
The Face Recognition Vender Test Evaluate work of FERET Assess commercial facial recognition Educate public
First semi-automated system Programs designed by Woody Bledsoe, Helen Chan Wolf and Charles Bisson. Linear algebra technique implemented Less than 100 values needed to align and normalize a face. Turk and Pentland
Questions
Entertainment
Areas of Research
MIT-multidimensional morphable models, view-based human face detection, cortex-like mechanisms, and object detection by components.