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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Deep learning for attribute inference, parsing, and recognition of face / CUHK electronic theses & dissertations collection

January 2014 (has links)
Deep learning has been widely and successfully applied to many difficult tasks in computer vision, such as image parsing, object detection, and object recognition, where various deep learning architectures such as deep neural networks, convolutional deep neural networks, and deep belief networks have achieved impressive performance and significantly outperformed state-of-the-art methods. However, the potential of deep learning in face related problems has not be fully explored yet. In this thesis, we fully explore different deep learning methods and proposes new network architectures and learning algorithms on face related applications, such as face parsing, face attribute inference, and face recognition. / For face parsing, we propose a novel face parser, which recasts segmentation of face components as a cross-modality data transformation problem, i.e., transforming an image patch to a label map. Specifically, a face is represented hierarchically by parts, components, and pixel-wise labels. With this representation, this approach first detects faces at both the part- and component-levels, and then computes the pixel-wise label maps. The part-based and component-based detectors are generatively trained with the deep belief network (DBN), and are discriminatively tuned by logistic regression. The segmentators transform the detected face components to label maps, which are obtained by learning a highly nonlinear mapping with the deep autoencoder. The proposed hierarchical face parsing is not only robust to partial occlusions but also provide richer information for face analysis and face synthesis compared with face keypoint detection and face alignment. / For face attribute inference, the proposed approach captures the interdependencies of local regions for each attribute, as well as the high-order correlations between different attributes, which makes it more robust to occlusions and misdetection of face regions. First, we have modeled region interdependencies with a discriminative decision tree, where each node consists of a detector and a classifier trained on a local region. The detector allows us to locate the region, while the classifier determines the presence or absence of an attribute. Second, correlations of attributes and attribute predictors are modeled by organizing all of the decision trees into a large sum-product network (SPN), which is learned by the EM algorithm and yields the most probable explanation (MPE) of the facial attributes in terms of the region’s localization and classification. Experimental results on a large data set with 22,400 images show the effectiveness of the proposed approach. / For face recognition, this thesis addresses this challenge by proposing a new deep learning framework that can recover the canonical view of face images. It dramatically reduces the intra-person variances, while maintaining the inter-person discriminativeness. Unlike the existing face reconstruction methods that were either evaluated in controlled 2D environment or employed 3D information, our approach directly learns the transformation between face images with a complex set of variations and their canonical views. At the training stage, to avoid the costly process of labeling canonical-view images from the training set by hand, we have devised a new measurement and algorithm to automatically select or synthesize a canonical-view image for each identity. The recovered canonical-view face images are matched by using a facial component-based convolutional neural network. Our approach achieves the best performance on the LFW dataset under the unrestricted protocol. We also demonstrate that the performance of existing methods can be improved if they are applied to our recovered canonical-view face images. / 近年來,深度學習算法被成功應用於解決各種困難的計算機視覺問題,例如圖像分割、物體識別和檢測等。深度學習算法,如深度神經網絡、深度卷積神經網絡、和深度置信度網絡在上述方面取得重要突破,並且算法性能超過了傳統計算機視覺算法。然而,人臉圖片,作為人的視覺認知最重要的環節之一,還沒有在深度學習框架下進行研究。本文以人臉圖片分析為背景,深入探討了適用的深度學習算法與不同的深度網絡結構。主要關注以下幾個應用,包括人臉分割、人臉屬性判斷、和人臉識別。 / 對於人臉分割問題,我們把傳統的計算機視覺分割問題變成一個高維空間數據轉換問題,即把人臉圖片轉換為分割圖。一張人臉圖片可以層次化的表示為像素塊、人臉關鍵點(五官)、和人臉區域。通過使用該人臉表示,我們的方法先檢測人臉的區域,其次檢測人臉關鍵點,最後根據人臉關鍵點位置把像素塊轉換為分割圖。本文提出的方法包括兩個步驟:關鍵點檢測和圖元轉換為分割圖。本文使用深度置信度網絡進行關鍵點檢測;使用深度編碼器進行像素點到分割圖的轉換。該方法對人臉遮擋也具有魯棒性。 / 對於人臉屬性判斷,本文提出的方法對兩種相關性進行建模,包括人臉關鍵區域相關性和人臉屬性之間的相關性。我們使用決策樹對人臉關鍵區域相關性進行建模。通過把尋找與決策樹一一對應的Sum-Product樹對屬性之間的相關性進行建模。通過對22400張人臉圖片進行實驗,驗證本文提出的方法的有效性與魯棒性。 / 對於人臉識別問題,本論文提出了一種新的人臉表示方法,稱爲人臉身份保持性特徵。該特徵能夠保持不同身份人臉之間的判別性,同時減少同一身份人臉間的變化。該特徵還可以恢復輸入人臉圖片的正臉。使用該正臉圖片進行人臉歸一化,可以使現有人臉識別算法的準確率都能得到提高。 / Luo, Ping. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2014. / Includes bibliographical references (leaves 83-95). / Abstracts also in Chinese. / Title from PDF title page (viewed on 27, October, 2016). / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only.
32

Intensity based methodologies for facial expression recognition.

January 2001 (has links)
by Hok Chun Lo. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 136-143). / Abstracts in English and Chinese. / LIST OF FIGURES --- p.viii / LIST OF TABLES --- p.x / Chapter 1. --- INTRODUCTION --- p.1 / Chapter 2. --- PREVIOUS WORK ON FACIAL EXPRESSION RECOGNITION --- p.9 / Chapter 2.1. --- Active Deformable Contour --- p.9 / Chapter 2.2. --- Facial Feature Points and B-spline Curve --- p.10 / Chapter 2.3. --- Optical Flow Approach --- p.11 / Chapter 2.4. --- Facial Action Coding System --- p.12 / Chapter 2.5. --- Neural Network --- p.13 / Chapter 3. --- EIGEN-ANALYSIS BASED METHOD FOR FACIAL EXPRESSION RECOGNITION --- p.15 / Chapter 3.1. --- Related Topics on Eigen-Analysis Based Method --- p.15 / Chapter 3.1.1. --- Terminologies --- p.15 / Chapter 3.1.2. --- Principal Component Analysis --- p.17 / Chapter 3.1.3. --- Significance of Principal Component Analysis --- p.18 / Chapter 3.1.4. --- Graphical Presentation of the Idea of Principal Component Analysis --- p.20 / Chapter 3.2. --- EigenFace Method for Face Recognition --- p.21 / Chapter 3.3. --- Eigen-Analysis Based Method for Facial Expression Recognition --- p.23 / Chapter 3.3.1. --- Person-Dependent Database --- p.23 / Chapter 3.3.2. --- Direct Adoption of EigenFace Method --- p.24 / Chapter 3.3.3. --- Multiple Subspaces Method --- p.27 / Chapter 3.4. --- Detail Description on Our Approaches --- p.29 / Chapter 3.4.1. --- Database Formation --- p.29 / Chapter a. --- Conversion of Image to Column Vector --- p.29 / Chapter b. --- "Preprocess: Scale Regulation, Orientation Regulation and Cropping." --- p.30 / Chapter c. --- Scale Regulation --- p.31 / Chapter d. --- Orientation Regulation --- p.32 / Chapter e. --- Cropping of images --- p.33 / Chapter f. --- Calculation of Expression Subspace for Direct Adoption Method --- p.35 / Chapter g. --- Calculation of Expression Subspace for Multiple Subspaces Method. --- p.38 / Chapter 3.4.2. --- Recognition Process for Direct Adoption Method --- p.38 / Chapter 3.4.3. --- Recognition Process for Multiple Subspaces Method --- p.39 / Chapter a. --- Intensity Normalization Algorithm --- p.39 / Chapter b. --- Matching --- p.44 / Chapter 3.5. --- Experimental Result and Analysis --- p.45 / Chapter 4. --- DEFORMABLE TEMPLATE MATCHING SCHEME FOR FACIAL EXPRESSION RECOGNITION --- p.53 / Chapter 4.1. --- Background Knowledge --- p.53 / Chapter 4.1.1. --- Camera Model --- p.53 / Chapter a. --- Pinhole Camera Model and Perspective Projection --- p.54 / Chapter b. --- Orthographic Camera Model --- p.56 / Chapter c. --- Affine Camera Model --- p.57 / Chapter 4.1.2. --- View Synthesis --- p.58 / Chapter a. --- Technique Issue of View Synthesis --- p.59 / Chapter 4.2. --- View Synthesis Technique for Facial Expression Recognition --- p.68 / Chapter 4.2.1. --- From View Synthesis Technique to Template Deformation --- p.69 / Chapter 4.3. --- Database Formation --- p.71 / Chapter 4.3.1. --- Person-Dependent Database --- p.72 / Chapter 4.3.2. --- Model Images Acquisition --- p.72 / Chapter 4.3.3. --- Templates' Structure and Formation Process --- p.73 / Chapter 4.3.4. --- Selection of Warping Points and Template Anchor Points --- p.77 / Chapter a. --- Selection of Warping Points --- p.78 / Chapter b. --- Selection of Template Anchor Points --- p.80 / Chapter 4.4. --- Recognition Process --- p.81 / Chapter 4.4.1. --- Solving Warping Equation --- p.83 / Chapter 4.4.2. --- Template Deformation --- p.83 / Chapter 4.4.3. --- Template from Input Images --- p.86 / Chapter 4.4.4. --- Matching --- p.87 / Chapter 4.5. --- Implementation of Automation System --- p.88 / Chapter 4.5.1. --- Kalman Filter --- p.89 / Chapter 4.5.2. --- Using Kalman Filter for Trakcing in Our System --- p.89 / Chapter 4.5.3. --- Limitation --- p.92 / Chapter 4.6. --- Experimental Result and Analysis --- p.93 / Chapter 5. --- CONCLUSION AND FUTURE WORK --- p.97 / APPENDIX --- p.100 / Chapter I. --- Image Sample 1 --- p.100 / Chapter II. --- Image Sample 2 --- p.109 / Chapter III. --- Image Sample 3 --- p.119 / Chapter IV. --- Image Sample 4 --- p.135 / BIBLIOGRAPHY --- p.136
33

A generic face processing framework: technologies, analyses and applications.

January 2003 (has links)
Jang Kim-fung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 108-124). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Introduction about Face Processing Framework --- p.4 / Chapter 1.2.1 --- Basic architecture --- p.4 / Chapter 1.2.2 --- Face detection --- p.5 / Chapter 1.2.3 --- Face tracking --- p.6 / Chapter 1.2.4 --- Face recognition --- p.6 / Chapter 1.3 --- The scope and contributions of the thesis --- p.7 / Chapter 1.4 --- The outline of the thesis --- p.8 / Chapter 2 --- Facial Feature Representation --- p.10 / Chapter 2.1 --- Facial feature analysis --- p.10 / Chapter 2.1.1 --- Pixel information --- p.11 / Chapter 2.1.2 --- Geometry information --- p.13 / Chapter 2.2 --- Extracting and coding of facial feature --- p.14 / Chapter 2.2.1 --- Face recognition --- p.15 / Chapter 2.2.2 --- Facial expression classification --- p.38 / Chapter 2.2.3 --- Other related work --- p.44 / Chapter 2.3 --- Discussion about facial feature --- p.48 / Chapter 2.3.1 --- Performance evaluation for face recognition --- p.49 / Chapter 2.3.2 --- Evolution of the face recognition --- p.52 / Chapter 2.3.3 --- Evaluation of two state-of-the-art face recog- nition methods --- p.53 / Chapter 2.4 --- Problem for current situation --- p.58 / Chapter 3 --- Face Detection Algorithms and Committee Ma- chine --- p.61 / Chapter 3.1 --- Introduction about face detection --- p.62 / Chapter 3.2 --- Face Detection Committee Machine --- p.64 / Chapter 3.2.1 --- Review of three approaches for committee machine --- p.65 / Chapter 3.2.2 --- The approach of FDCM --- p.68 / Chapter 3.3 --- Evaluation --- p.70 / Chapter 4 --- Facial Feature Localization --- p.73 / Chapter 4.1 --- Algorithm for gray-scale image: template match- ing and separability filter --- p.73 / Chapter 4.1.1 --- Position of face and eye region --- p.74 / Chapter 4.1.2 --- Position of irises --- p.75 / Chapter 4.1.3 --- Position of lip --- p.79 / Chapter 4.2 --- Algorithm for color image: eyemap and separa- bility filter --- p.81 / Chapter 4.2.1 --- Position of eye candidates --- p.81 / Chapter 4.2.2 --- Position of mouth candidates --- p.83 / Chapter 4.2.3 --- Selection of face candidates by cost function --- p.84 / Chapter 4.3 --- Evaluation --- p.85 / Chapter 4.3.1 --- Algorithm for gray-scale image --- p.86 / Chapter 4.3.2 --- Algorithm for color image --- p.88 / Chapter 5 --- Face Processing System --- p.92 / Chapter 5.1 --- System architecture and limitations --- p.92 / Chapter 5.2 --- Pre-processing module --- p.93 / Chapter 5.2.1 --- Ellipse color model --- p.94 / Chapter 5.3 --- Face detection module --- p.96 / Chapter 5.3.1 --- Choosing the classifier --- p.96 / Chapter 5.3.2 --- Verifying the candidate region --- p.97 / Chapter 5.4 --- Face tracking module --- p.99 / Chapter 5.4.1 --- Condensation algorithm --- p.99 / Chapter 5.4.2 --- Tracking the region using Hue color model --- p.101 / Chapter 5.5 --- Face recognition module --- p.102 / Chapter 5.5.1 --- Normalization --- p.102 / Chapter 5.5.2 --- Recognition --- p.103 / Chapter 5.6 --- Applications --- p.104 / Chapter 6 --- Conclusion --- p.106 / Bibliography --- p.107
34

Non-negative matrix factorization for face recognition

Xue, Yun 01 January 2007 (has links)
No description available.
35

Face recognition using virtual frontal-view image

Feng, Guo Can 01 January 1999 (has links)
No description available.
36

Wavelet and manifold learning and their applications

Cui, Limin 01 January 2010 (has links)
No description available.
37

Partial EBGM and face synthesis methods for non-frontal recognition. / 基於局部彈性束圖匹配及人臉整合的非正面人臉識別技術 / Ji yu ju bu tan xing shu tu pi pei ji ren lian zheng he de fei zheng mian ren lian shi bie ji shu

January 2009 (has links)
Cheung, Kin Wang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves 76-82). / Abstract also in Chinese. / Chapter 1. --- INTRODUCTION --- p.1 / Chapter 1.1. --- Background --- p.1 / Chapter 1.1.1. --- Introduction to Biometrics --- p.1 / Chapter 1.1.2. --- Face Recognition in General --- p.2 / Chapter 1.1.3. --- A Typical Face Recognition System Architecture --- p.4 / Chapter 1.1.4. --- Face Recognition in Surveillance Cameras --- p.6 / Chapter 1.1.5. --- Face recognition under Pose Variation --- p.9 / Chapter 1.2. --- Motivation and Objectives --- p.11 / Chapter 1.3. --- Related Works --- p.13 / Chapter 1.3.1. --- Overview of Pose-invariant Face Recognition --- p.13 / Chapter 1.3.2. --- Standard Face Recognition Setting --- p.14 / Chapter 1.3.3. --- Multi-Probe Setting --- p.19 / Chapter 1.3.4. --- Multi-Gallery Setting --- p.21 / Chapter 1.3.5. --- Non-frontal Face Databases --- p.23 / Chapter 1.3.6. --- Evaluation Metrics --- p.26 / Chapter 1.3.7. --- Summary of Non-frontal Face Recognition Settings --- p.27 / Chapter 1.4. --- Proposed Methods for Non-frontal Face Recognition --- p.28 / Chapter 1.5. --- Thesis Organization --- p.30 / Chapter 2. --- PARTIAL ELASTIC BUNCH GRAPH MATCHING --- p.31 / Chapter 2.1. --- Introduction --- p.31 / Chapter 2.2. --- EBGM for Non-frontal Face Recognition --- p.31 / Chapter 2.2.1. --- Overview of Baseline EBGM Algorithm --- p.31 / Chapter 2.2.2. --- Modified EBGM for Non-frontal Face Matching --- p.33 / Chapter 2.3. --- Experiments --- p.35 / Chapter 2.3.1. --- Experimental Setup --- p.35 / Chapter 2.3.2. --- Experimental Results --- p.37 / Chapter 2.4. --- Discussions --- p.40 / Chapter 3. --- FACE RECOGNITION BY FRONTAL VIEW SYNTHESIS WITH CALIBRATED STEREO CAMERAS --- p.43 / Chapter 3.1. --- Introduction --- p.43 / Chapter 3.2. --- Proposed Method --- p.44 / Chapter 3.2.1. --- Image Rectification --- p.45 / Chapter 3.2.2. --- Face Detection --- p.49 / Chapter 3.2.3. --- Head Pose Estimation --- p.51 / Chapter 3.2.4. --- Virtual View Generation --- p.52 / Chapter 3.2.5. --- Feature Localization --- p.54 / Chapter 3.2.6. --- Face Morphing --- p.56 / Chapter 3.3. --- Experiments --- p.58 / Chapter 3.3.1. --- Data Collection --- p.58 / Chapter 3.3.2. --- Synthesized Results --- p.59 / Chapter 3.3.3. --- Experiment Setup --- p.60 / Chapter 3.3.4. --- Experiment Results on FERET database --- p.61 / Chapter 3.3.5. --- Experiment Results on CAS-PEAL-R1 database --- p.62 / Chapter 3.4. --- Discussions --- p.64 / Chapter 3.5. --- Summary --- p.66 / Chapter 4. --- "EXPERIMENTS, RESULTS AND OBSERVATIONS" --- p.67 / Chapter 4.1. --- Experiment Setup --- p.67 / Chapter 4.2. --- Experiment Results --- p.69 / Chapter 4.3. --- Discussions --- p.70 / Chapter 5. --- CONCLUSIONS --- p.74 / Chapter 6. --- BIBLIOGRAPHY --- p.76
38

Learning-based descriptor for 2-D face recognition.

January 2010 (has links)
Cao, Zhimin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 30-34). / Abstracts in English and Chinese. / Chapter 1 --- Introduction and related work --- p.1 / Chapter 2 --- Learning-based descriptor for face recognition --- p.7 / Chapter 2.1 --- Overview of framework --- p.7 / Chapter 2.2 --- Learning-based descriptor extraction --- p.9 / Chapter 2.2.1 --- Sampling and normalization --- p.9 / Chapter 2.2.2 --- Learning-based encoding and histogram rep-resentation --- p.11 / Chapter 2.2.3 --- PCA dimension reduction --- p.12 / Chapter 2.2.4 --- Multiple LE descriptors --- p.14 / Chapter 2.3 --- Pose-adaptive matching --- p.16 / Chapter 2.3.1 --- Component -level face alignment --- p.17 / Chapter 2.3.2 --- Pose-adaptive matching --- p.17 / Chapter 2.3.3 --- Evaluations of pose-adaptive matching --- p.19 / Chapter 3 --- Experiment --- p.21 / Chapter 3.1 --- Results on the LFW benchmark --- p.21 / Chapter 3.2 --- Results on Multi-PIE --- p.24 / Chapter 4 --- Conclusion and future work --- p.27 / Chapter 4.1 --- Conclusion --- p.27 / Chapter 4.2 --- Future work --- p.28 / Bibliography --- p.30
39

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

January 2010 (has links)
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
40

Video-based face alignment using efficient sparse and low-rank approach.

January 2011 (has links)
Wu, King Keung. / "August 2011." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (p. 119-126). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.v / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview of Face Alignment Algorithms --- p.1 / Chapter 1.1.1 --- Objectives --- p.1 / Chapter 1.1.2 --- Motivation: Photo-realistic Talking Head --- p.2 / Chapter 1.1.3 --- Existing methods --- p.5 / Chapter 1.2 --- Contributions --- p.8 / Chapter 1.3 --- Outline of the Thesis --- p.11 / Chapter 2 --- Sparse Signal Representation --- p.13 / Chapter 2.1 --- Introduction --- p.13 / Chapter 2.2 --- Problem Formulation --- p.15 / Chapter 2.2.1 --- l0-nonn minimization --- p.15 / Chapter 2.2.2 --- Uniqueness --- p.16 / Chapter 2.3 --- Basis Pursuit --- p.18 / Chapter 2.3.1 --- From l0-norm to l1-norm --- p.19 / Chapter 2.3.2 --- l0-l1 Equivalence --- p.20 / Chapter 2.4 --- l1-Regularized Least Squares --- p.21 / Chapter 2.4.1 --- Noisy case --- p.22 / Chapter 2.4.2 --- Over-determined systems of linear equations --- p.22 / Chapter 2.5 --- Summary --- p.24 / Chapter 3 --- Sparse Corruptions and Principal Component Pursuit --- p.25 / Chapter 3.1 --- Introduction --- p.25 / Chapter 3.2 --- Sparse Corruptions --- p.26 / Chapter 3.2.1 --- Sparse Corruptions and l1-Error --- p.26 / Chapter 3.2.2 --- l1-Error and Least Absolute Deviations --- p.28 / Chapter 3.2.3 --- l1-Regularized l1-Error --- p.29 / Chapter 3.3 --- Robust Principal Component Analysis (RPCA) and Principal Component Pursuit --- p.31 / Chapter 3.3.1 --- Principal Component Analysis (PCA) and RPCA --- p.31 / Chapter 3.3.2 --- Principal Component Pursuit --- p.33 / Chapter 3.4 --- Experiments of Sparse and Low-rank Approach on Surveillance Video --- p.34 / Chapter 3.4.1 --- Least Squares --- p.35 / Chapter 3.4.2 --- l1-Regularized Least Squares --- p.35 / Chapter 3.4.3 --- l1-Error --- p.36 / Chapter 3.4.4 --- l1-Regularized l1-Error --- p.36 / Chapter 3.5 --- Summary --- p.37 / Chapter 4 --- Split Bregman Algorithm for l1-Problem --- p.45 / Chapter 4.1 --- Introduction --- p.45 / Chapter 4.2 --- Bregman Distance --- p.46 / Chapter 4.3 --- Bregman Iteration for Constrained Optimization --- p.47 / Chapter 4.4 --- Split Bregman Iteration for l1-Regularized Problem --- p.50 / Chapter 4.4.1 --- Formulation --- p.51 / Chapter 4.4.2 --- Advantages of Split Bregman Iteration . . --- p.52 / Chapter 4.5 --- Fast l1 Algorithms --- p.54 / Chapter 4.5.1 --- l1-Regularized Least Squares --- p.54 / Chapter 4.5.2 --- l1-Error --- p.55 / Chapter 4.5.3 --- l1-Regularized l1-Error --- p.57 / Chapter 4.6 --- Summary --- p.58 / Chapter 5 --- Face Alignment Using Sparse and Low-rank Decomposition --- p.61 / Chapter 5.1 --- Robust Alignment by Sparse and Low-rank Decomposition for Linearly Correlated Images (RASL) --- p.61 / Chapter 5.2 --- Problem Formulation --- p.62 / Chapter 5.2.1 --- Theory --- p.62 / Chapter 5.2.2 --- Algorithm --- p.64 / Chapter 5.3 --- Direct Extension of RASL: Multi-RASL --- p.66 / Chapter 5.3.1 --- Formulation --- p.66 / Chapter 5.3.2 --- Algorithm --- p.67 / Chapter 5.4 --- Matlab Implementation Details --- p.68 / Chapter 5.4.1 --- Preprocessing --- p.70 / Chapter 5.4.2 --- Transformation --- p.73 / Chapter 5.4.3 --- Jacobian Ji --- p.74 / Chapter 5.5 --- Experiments --- p.75 / Chapter 5.5.1 --- Qualitative Evaluations Using Small Dataset --- p.76 / Chapter 5.5.2 --- Large Dataset Test --- p.81 / Chapter 5.5.3 --- Conclusion --- p.85 / Chapter 5.6 --- Sensitivity analysis on selection of references --- p.87 / Chapter 5.6.1 --- References from consecutive frames --- p.88 / Chapter 5.6.2 --- References from RASL-aligned images --- p.91 / Chapter 5.7 --- Summary --- p.92 / Chapter 6 --- Extension of RASL for video: One-by-One Approach --- p.96 / Chapter 6.1 --- One-by-One Approach --- p.96 / Chapter 6.1.1 --- Motivation --- p.97 / Chapter 6.1.2 --- Algorithm --- p.97 / Chapter 6.2 --- Choices of Optimization --- p.101 / Chapter 6.2.1 --- l1-Regularized Least Squares --- p.101 / Chapter 6.2.2 --- l1-Error --- p.102 / Chapter 6.2.3 --- l1-Regularized l1-Error --- p.103 / Chapter 6.3 --- Experiments --- p.104 / Chapter 6.3.1 --- Evaluation for Different l1 Algorithms --- p.104 / Chapter 6.3.2 --- Conclusion --- p.108 / Chapter 6.4 --- Exploiting Property of Video --- p.109 / Chapter 6.5 --- Summary --- p.110 / Chapter 7 --- Conclusion and Future Work --- p.112 / Chapter A --- Appendix --- p.117 / Bibliography --- p.119

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