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Eigenboosting: Combining Discriminative and Generative Information 土土土土 2008/1/8

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Eigenboosting: Combining Discriminative and Generative Information. 土屋成光 2008/1/8. 背景. 認識,検出手法における問題 Training (訓練データ) -Recognition (実データ) 双方のノイズの影響 無関係な情報(ノイズ)に着目 ノイズに過敏な認識システムとなる可能性. 従来法. Generative (生成モデル) principal component analysis (PCA) independent component analysis (ICA) - PowerPoint PPT Presentation

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  • Eigenboosting:Combining Discriminative and Generative Information

    2008/1/8

    Eigenboosting

    Training-Recognition

    Eigenboosting

    Generativeprincipal component analysis (PCA)independent component analysis (ICA)

    Discriminative()linear discriminant analysis (LDA)support vector machines (SVM)BoostingGenerative(bag-of-keypoint)

    Eigenboosting

    Eigenboosting

    DiscriminativeEx.

    Eigenboosting

    EigenboostingCVPR2007Combining Discriminative and Generative InformationHelmut GrabnerGraz University

    Discriminative Haar-likeGenerativeHaar-like

    Eigenboosting

    DiscriminativeBoosting

    GenerativePCA

    Eigenboosting

    Boosting(AdaBoost)

    Eigenboosting

    PCA

    K

    Eigenboosting

    EigenboostingDiscriminative/Generative

    LowHaar-like

    DiscriminativeGenerative

    Eigenboosting

    Haar-likeDiscriminativeHaar-likeboostingDiscriminative (Viola)

    GenerativeHaar-likeEigenimageBPCA

    Eigenboosting

    Haar-likePCA

    Eigenboosting

    EigenboostingBoostingFeature pool(discriminative) (generative)

    Eigenboosting

    Mofdified boosting error-functionDiscriminative Generative

    b

    Eigenboosting

    Discriminative error

    Eigenboosting

    Generative error

    2

    Eigenboosting

    ExperimentsATT databaseUIUC Image Database

    Haar-like+BPCABPCAb

    Eigenboosting

    Haar-like+BPCA(a)(b)BPCA(c)Eigenboosting

    Eigenboosting

    ATTROCDiscriminative=1

    Eigenboosting

    ATTROCD-G=0.5

    Eigenboosting

    EER==0.5Generative

    Eigenboosting

    (a)=1(b)=0.5(c)=0

    Eigenboosting

    EigenboostingGenerativeLowHaar-like

    Eigenboosting

    2

    BPCAF. Tang and H. Tao. Binary principal component analysis.In Proc. British Machine Vision Conf., volume I, pages 377-386, 2006.

    Eigenboosting

    BPCA(a)PCA(b)BPCA(c)BPCA with Block

    Eigenboosting

    AdaBoost - Y.Freund and R.E.Schapire at 1997 T

    AdaBoost ``A decision-theoretic generalization of on-line learning and an application to boosting",Journal of Computer and System Sciences, 1997.T

    Eigenboosting

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