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KIT University of the State of Baden-Württemberg and National Large-scale Research Center of the Helmholtz Association INSTITUTE FOR ANTHROPOMATICS, FACIAL IMAGE PROCESSING AND ANALYSIS YIG www.kit.edu Facial Image Processing and Analysis (FIPA) Seminar WS 2011/2012 Tobias Gehrig, [email protected] Karlsruhe, 20/10/2011

Facial Image Processing and Analysis (FIPA) Seminar WS

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Page 1: Facial Image Processing and Analysis (FIPA) Seminar WS

KIT – University of the State of Baden-Württemberg and

National Large-scale Research Center of the Helmholtz Association

INSTITUTE FOR ANTHROPOMATICS, FACIAL IMAGE PROCESSING AND ANALYSIS YIG

www.kit.edu

Facial Image Processing and Analysis (FIPA) Seminar WS 2011/2012

Tobias Gehrig, [email protected]

Karlsruhe, 20/10/2011

Page 2: Facial Image Processing and Analysis (FIPA) Seminar WS

Institut for Anthropomatics

Facial Image Processing and Analysis YIG

2 20.10.2011

Facial Image Processing and Analysis (FIPA)

The task of automatically analyzing face images

to acquire information about the depicted

persons, e.g. age, expression, gender, gesture,

and identity.

A wide range of application domains: security,

smart environments, human-computer interfaces,

content-based image and video analysis …

High commercial exploitation potential: Current

market size of “face recognition for security

domain” is 350 million USD, projected to exceed

1 billion USD in 2014*

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

*Source: Biometrics Market and Industry Report 2009-2014, International Biometric Group, Oct. 2008

Age

Gender

Identity

Expression Gesture

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Institut for Anthropomatics

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FIPA members

Group Leader

Dr.-Ing. Hazım Kemal Ekenel

PhD Students

Hua Gao

Mika Fischer

Tobias Gehrig

B.S./M.S. Students

Derick Beng Yuh

Dragos Constantin

Matthias Richter

Nadine Gillich

Ömer Yüksel

Tomas Semela

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Institut for Anthropomatics

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Occlusion Robust

Face Recognition Identity

Current State of Research*

Illumination Robust

Face Recognition Identity

*A Robust Face Recognition Algorithm for Real-World Applications (H.K. Ekenel, Ph.D. thesis, University of Karlsruhe (TH), Feb. 2009, Supervisors: A. Waibel, J. Kittler)

Expression Robust

Face Recognition Identity

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Page 5: Facial Image Processing and Analysis (FIPA) Seminar WS

Institut for Anthropomatics

Facial Image Processing and Analysis YIG

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Robust Face

Recognition Identity

Current State of Research*

*A Robust Face Recognition Algorithm for Real-World Applications (H.K. Ekenel, Ph.D. thesis, University of Karlsruhe (TH), Feb. 2009, Supervisors: A. Waibel, J. Kittler)

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Facial occlusion

Expression

Illumination

Misalignment

Uncontrolled capture conditions

A single, generic algorithm

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Institut for Anthropomatics

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Outcomes and Achievements

Over 40 publications in peer reviewed international journals & conferences

EBF European Biometric Research Award 2008

Best performing systems in the CLEAR Evaluations 2006, 2007

Leading face recognition research in the CHIL, SFB 588 and Quaero projects

A wide range of real-world applications (Best Demo Award @ IEEE International Conference

on Automatic Face and Gesture Recognition 2008)

3rd rank in the FG2011 Facial Expression Recognition and Analysis Challenge in

the emotion recognition and action unit detection tasks

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Entrance Monitoring Face Labeler Person Retrieval in Movies

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Institut for Anthropomatics

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7 20.10.2011

Face Identification Identity

Expression Recognition Expression

Gender Gender Classification

Age Classification Age Interval

Objective

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Gesture Recognition Gesture

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Institut for Anthropomatics

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8 20.10.2011

Objective

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Facial Image

Processing and Analysis

Age, Expression,

Gender, Gesture,

Identity

Robust face detection, facial feature localization and tracking across different poses

A single, shared face representation framework to derive information from the face image

To read the face as humans do.

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Face Detection

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Face Modeling with Active Appearance Models

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

A generative model

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2D AAMs Example

110sps

220sps

330sps

xAxA110

xAxA220

xAxA330

)(0

xA

0s

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Model-based Face Registration

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Non-linear morphing with piece-wise affine warp

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Active Appearance Model Tracking in Video

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Face Verification

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

Multi-resolution face models:

Face Recognition Grand Challenge,

Experiment 4: Controlled vs. Uncontrolled matching:

92.5% VR @ 0.1 FAR Best published result!

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Pair Matching / Face Recognition in Wild

Given

Two face images

Not given

Training data of the same persons

Facial feature locations

Task

Classify whether it’s the same

person

Quite difficult problem!

Same person?

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Web Image Search: Example

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Facial Action Coding System (FACS)

Recognizing facial action units (AU)

Emotion Classification (Happy, sad, angry, etc …)

Facial Expression Analysis

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Age Estimation

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Gender Classification

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Real-World Applications*

Access Control: 100%, 25 subjects

Smart Environments: Best system in the CLEAR evals (96.4%, 28 subjects)

*Winner of the Best Demo Award in IEEE Intl. Conf. on Automatic Face and Gesture Recognition (FG 2008)

Surveillance: 92.5%, 41 subjects

ICCV’07 ACM MM’08

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Real World Applications*

Person retrieval in TV series: Recall: 91.3%, Precision: 98.8%

Humanoid Robots:

*Winner of the Best Demo Award in IEEE Intl. Conf. on Automatic Face and Gesture Recognition (FG 2008) FG’08

IEEE Trans. on Robotics’07

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Seminarorganisation

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Ablauf

Aufgabe: Präsentation eines Themas basierend auf 1-2

wissenschaftlichen Papers

Pro Termin ein bis zwei Vorträge mit anschließender

Diskussion

Regelmäßige Anwesenheit erforderlich

Bitte alle die Papers zu den jeweiligen Vorträgen vorher

lesen (Download über die Webseite)

Ausarbeitung erforderlich

Benotung für Master-Studenten:

Je 1/3 aus Präsentation, Mitarbeit, Ausarbeitung

Teil der Module Informatik-Seminar 1/2 [IN4INSEM1/2]

ECTS-Punkte: 3

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Der Vortrag

Mindestens 3 Treffen mit dem Betreuer:

Besprechen der vergebenen Papers

Besprechen der Folien

(Besprechen der Ausarbeitung)

30min Vortrag + 10min Diskussion

Sprache für Vortrag und Folien: Englisch

Vortrag vorher mehrmals üben!

Die zentralen Vokabeln kennen, ggf. Aussprache

nachschlagen

Ausreichend laut, langsam und deutlich sprechen

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Folien

Ziel: Der Zuhörer soll einen Überblick über das Thema/Paper bekommen

Richtwert: pro Folie knapp zwei Minuten einplanen Vorher überlegen, welche Folien notfalls ausgelassen werden können

Nicht in Details verlieren

Keine vollständigen Sätze Verführt nur zum ablesen → schlecht

Lieber anschauliche Bilder/Videos zum Paper suchen

Vollständige Referenzen auf die Papers, auf denen der Vortrag basiert

Jeden auf den eigenen Folien vorkommenden Begriff erklären können

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Gliederung

Einleitung

Problemdefinition / Ziel (einfach und für jeden verständlich halten!)

Einordnung, verwandte Arbeiten

Verfahren

Vor dem “Wie” an das “Warum” erinnern

Wenn Formeln notwendig: alle Bestandteile erklären

Experimente

Komplizierte Tabellen ggf. aufbrechen

Zusammenfassung

Offene Probleme

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Foliengestaltung

z.B. KIT Tempalte (Download von Seminar-Webseite)

Eigener Name, Datum, Foliennummern

Ausreichende Schriftgröße und Kontrast

Den Rändern nicht zu nahe kommen

Format für die Folienabgabe: pdf oder ppt

Bei Grafiken: Legende und Achsenbeschriftungen nicht

vergessen

Sparsamer Umgang mit Effekten

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Die Ausarbeitung

Inhalt: Detaillierter, möglichst abgeschlossener Überblick über das Thema/Paper

Relation zu anderen Arbeiten auf dem Gebiet

Stil: so einfach wie möglich, nachvollziehbar

Umfang: 5-10 Seiten

Vorsicht vor Plagiarismus Quellen angeben

Genügend Zeit einplanen!

Abgabe zum Semesterende (12.02.2012) Vorabversion sollte am Tag des Vortrags dem Betreuer vorgelegt werden

Latex-Vorlage zum Download auf der Seminarwebseite

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Gliederung/Struktur

Abstract

Introduction Problemdefinition, Warum ist das interessant?

Related Work Einordnen der Arbeit

Welche anderen Arbeiten auf dem Gebiet gibt es? → Literaturrecherche

Approach Detaillierte Beschreibung des Ansatzes, in eigenen Worten!

(Approach 2)

Experimental Results Präsentation/Diskussion der Evaluationsergebnisse (aus dem Paper)

Ggf. Vergleich mit Ergebnissen anderer Ansätze

Discussion Vorteile/Nachteile

Vergleich mit anderen Verfahren

Weiterführende Ideen

Bibliography

Tobias Gehrig – Seminar: Facial Image Processing and Analysis

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Literaturrecherche

http://scholar.google.com

http://academic.research.microsoft.com

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Weitergehende Lektüre

In Ruhe durchlesen:

http://sdqweb.ipd.kit.edu/wiki/Ausarbeitungshinweise

http://sdqweb.ipd.kit.edu/wiki/Literaturrecherche

http://www.cse.unsw.edu.au/~gernot/style-guide.html

http://www.st.informatik.tu-

darmstadt.de/static/pages/seminars/problems-theses.html

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Seminarthemen

Face detection

Facial feature localization

Face modeling

Face recognition

Face verification

Facial expression analysis

Emotion classification

Age estimation

Gender classification

Facial gesture recognition

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Thank you for your attention

Tobias Gehrig, [email protected]

Dr.-Ing. Hazım Kemal Ekenel, [email protected]

Seminarwebseite:

http://fipa.cs.kit.edu/teaching/fipaseminar11

User / Passwort:

fipacourse / FIPA4u!

Tobias Gehrig – Seminar: Facial Image Processing and Analysis