Detection Face Pattern Faces Face Face Pattern Background Pattern YES NO... Background SegmentationBackground Model Adaptation Background Template Deformable Best Face Selection Face Tra
Trang 129 7 ' (!!!$## 4>4
94> (!!! $## 4>9
Trang 16Detection
Face Pattern
Faces
Face
Face Pattern
Background
Pattern
YES NO
Trang 34Background Segmentation
Background Model
Adaptation Background
Template Deformable
Best Face Selection Face Tracking
Eye Detection
Constraints Eye Region
No Yes
Trang 37(x0,y0) a b
Trang 40Initial Ellipse Centroid Estimation
Error Computation
Centroid Reestimation
Convergence Test
NO
YES
Skeletonization
Edge Detection and
Model Foreground
Region
Parameters Ellipse
Trang 41! IM
Trang 47Segmentation of Region Size
Filtering
Filtering Based on Measures Region
Head
pixels
low intensity
Analysis Component
Connected
Anthropological
Eye Position
Trang 494>" 3 (' ) !
Trang 5045" 3 )
Trang 551 2 3 4 5
Trang 590.015 0.02 0.025 0.03 0.035 0.04
" @B ! @(/B
( '
Trang 60" 3 ,: Æ >B ( '
! @B %@(B !%@B % @!B ! @B
Trang 610 20 40 60 80 100
0 2 4
0 2 4 6 8 10 12
−2000
−1000 0 1000 2000 3000 4000
0 20 40 60 80 100
0 2 4
0 2 4 6 8 10 12
−1000 0 1000 2000 3000 4000
0 20 40 60 80 100
0 2 4 6 8 10 12
−1000
−500 0 500 1000 1500 2000 2500 3000 3500
@B
8" 3 5/& Æ ( ' /
! @B %@(B !%@B % @!B ! @B
Trang 65Feature Extraction
Image Test
Maximum Selection
Model Recognized
Viterbi
Viterbi Viterbi
Trang 67Blocks Extraction
Face Model(s) Test Image
Trang 735 10
15 20
25 30 35
1 2 3 4 5 6
Trang 79
@BI3
E3
B
Trang 801D Viterbi 1D Viterbi
1D Viterbi
1D Viterbi
1D Viterbi 1D Viterbi
Trang 81@(
¼B
Trang 87B
Trang 88)
Trang 91@B2
@B
/
@B2
/
@B2
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@ B2
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@ B
/
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@ B2
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@ B
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Trang 92½
@ B2 ... 16
Detection< /h3>
Face Pattern
Faces
Face< /h3>
Face Pattern
Background
Pattern... Segmentation
Background Model< /h3>
Adaptation Background
Template Deformable
Best Face Selection Face Tracking
Eye Detection< /h3>
Constraints...
NO
YES
Skeletonization
Edge Detection and< /h3>
Model Foreground
Region
Parameters Ellipse