Table 2 Comparison of FastCAT and CVAT by video. This table shows our comparison of the well-known CVAT annotation tool to our new annotation tool FastCAT in terms of annotation speed. Videos 1 and 2 are open source and annotated. Videos 3–10 are from the University Hospital Würzburg

Video 1

3.79

1.75

23.43

10.82

371

1

384x288

Video 2

4.39

2.49

32.85

18.63

449

1

384x288

Video 3

2.82

1.42

60.11

30.27

1279

1

898x720

Video 4

4.09

2.00

56.85

27.80

834

1

898x720

Video 5

4.57

2.39

53.24

27.84

699

2

898x720

Video 6

1.66

0.61

18.01

6.62

651

1

898x720

Video 7

1.70

0.64

11.22

4.22

396

1

898x720

Video 8

1.55

0.76

34.13

16.73

1321

2

898x720

Video 9

1.87

0.88

34.91

16.43

1120

1

898x720

Video 10

2.74

0.92

77.68

26.08

1701

4

898x720

Mean

2.92

1.39

40.24

18.54

882

1.5

795x633