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Table 1 Overlap and segmentation error values of two methods

From: Lip segmentation using automatic selected initial contours based on localized active contour model

  

1 (%)

2 (%)

3 (%)

4 (%)

The proposed method

OL

83.1

88.5

80.7

75.4

SE

17.7

13.1

21.1

29.2

Green component with circular initial contour

OL

80.3

85.1

69.9

61.8

SE

16.6

13.1

36.4

48.0

Gray images with circular initial contour

OL

82.6

85.7

75.4

70.9

SE

17.1

15.8

23.6

26.2

Combined color space images with circular initial contour

OL

81.1

84.6

76.3

74.1

SE

16.3

16.8

10.2

11.4

Gray images with the proposed initial contours

OL

82.7

83.4

71.6

70.3

SE

19.6

16.0

23.7

22.5