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An adaptive near-infrared illuminator for outdoor face recognition. / 用於戶外人臉辨識的近紅外線適應性照明 / Yong yu hu wai ren lian bian shi de jin hong wai xian shi ying xing zhao ming

Cheung, Siu Ming. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 81-86). / Abstracts in English and Chinese. / Chapter 1. --- INTRODUCTION --- p.1 / Chapter 1.1. --- Introduction to Face Recognition --- p.2 / Chapter 1.1.1. --- Modes of Face Recognition --- p.2 / Chapter 1.1.2. --- Typical Face Recognition System --- p.3 / Chapter 1.1.3. --- Face Recognition Algorithms --- p.4 / Chapter 1.1.4. --- The State of the Art --- p.5 / Chapter 1.2. --- Outdoor Face Recognition --- p.6 / Chapter 1.2.1. --- The Outdoor Environment --- p.6 / Chapter 1.2.2. --- The Illumination Variation Problem in the Outdoors --- p.8 / Chapter 1.3. --- Related works --- p.10 / Chapter 1.3.1. --- Face Appearance Modeling --- p.10 / Chapter 1.3.2. --- Illumination Invariant Features and Representations --- p.13 / Chapter 1.3.3. --- Active Near-Infrared Illumination --- p.14 / Chapter 1.4. --- Proposed method --- p.17 / Chapter 1.5. --- Design Requirements --- p.18 / Chapter 2. --- COMPENSATION METHODOLOGY FOR OUTDOOR FACE RECOGNITION --- p.20 / Chapter 2.1. --- Illumination from the Sun --- p.21 / Chapter 2.2. --- Effect of Sunlight Illumination --- p.22 / Chapter 2.3. --- A Compensation Model --- p.24 / Chapter 2.4. --- A Face Lighting Simulator --- p.28 / Chapter 2.4.1. --- Face 3D Models --- p.29 / Chapter 2.4.2. --- Light Sources --- p.30 / Chapter 2.4.3. --- Synthesis of Face Image --- p.31 / Chapter 2.5. --- Simulation Results --- p.32 / Chapter 2.5.1. --- Optimum Compensation Angles --- p.33 / Chapter 2.5.2. --- Effect of Illuminator Intensity --- p.36 / Chapter 2.5.3. --- Effect of Illuminator Elevation Angle --- p.38 / Chapter 2.5.4. --- Effect of Sunlight Elevation Angle --- p.41 / Chapter 2.5.5. --- Illumination from Both Sides --- p.42 / Chapter 2.6. --- Summary --- p.43 / Chapter 3. --- AN ADAPTIVE ILLUMINATOR --- p.45 / Chapter 3.1. --- Hardware Design --- p.45 / Chapter 3.1.1. --- Near-infrared Camera --- p.45 / Chapter 3.1.2. --- Illumination Panels --- p.48 / Chapter 3.1.3. --- Illuminator Controller --- p.56 / Chapter 3.1.4. --- Illumination Characteristics --- p.59 / Chapter 3.2. --- Algorithms --- p.62 / Chapter 3.2.1. --- Light Balance Estimation --- p.63 / Chapter 4. --- EXPERIMENTS AND RESULTS --- p.67 / Chapter 4.1. --- Effect of compensation angle on face similarity --- p.68 / Chapter 4.2. --- Effect of illumination compensation under different sunlight conditions --- p.71 / Chapter 4.3. --- Impact on recognition performance --- p.72 / Chapter 5. --- CONCLUSIONS --- p.76 / Chapter 6. --- BIBLIOGRAPHY --- p.81

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_327035
Date January 2010
ContributorsCheung, Siu Ming., Chinese University of Hong Kong Graduate School. Division of Computer Science and Engineering.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, vi, 86 leaves : ill. (some col.) ; 30 cm.
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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