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Calibration target board

Calibration target board

 

Calibration board is used to correct lens distortion in machine vision, image measurement, photogrammetry, 3D reconstruction and other applications. Determine the conversion relationship between physical size and pixels; And to determine the relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish the geometric model of camera imaging.

The geometric model of the camera can be obtained by photographing a flat plate with a fixed spacing pattern and calculating by the calibration algorithm, so as to obtain high-precision measurement and reconstruction results. The plate with a fixed spacing pattern array is the calibration plate.

Calibration target board can be customized.

 

Typical dimension of calibration target board

Dimension
  (MM)

Lattice size
  (MM)

Pattern area
  (MM)

Array

Glass thickness
  (MM)

Ceramic thickness
  (MM)

Glass /Ceramic
  accuracy

10*10

0.1

5*5

50*50

2

1

1um/2um

15*10

0.1

0.8*0.8

8*8

2

1

1um/2um

15*10

0.2

1.6*1.6

8*8

2

1

1um/2um

15*10

0.3

2.4*2.4

8*8

2

1

1um/2um

15*10

0.4

3.2*3.2

8*8

2

1

1um/2um

15*10

0.5

4*4

8*8

2

1

1um/2um

20*20

0.5

12.5*12.5

25*25

2

1

1um/2um

25*25

0.5

15*15

30*30

2

1

1um/2um

35*35

0.5

25*25

50*50

2

1

1um/2um

40*40

0.5

30*30

60*60

2

1

1um/2um

25*25

1

16*16

16*16

2

1

1um/2um

30*30

1

20*20

20*20

2

1

1um/2um

40*40

1

30*30

30*30

2

1

1um/2um

80*80

1

70*70

70*70

2

1

1um/2um

80*80

2

70*70

35*35

2

1

1um/2um

30*30

2

24*24

12*12

2

1

1um/2um

40*40

2

30*30

15*15

2

1

1um/2um

50*40

3

39*30

13*10

2

1

1um/2um