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Calculation example (DataFormat3D=0, 3D03 models): Suppose that the 3D data of image
column n has the following data: 14 / 176 / 10 / 128 (see also Fig. 5.15).
The position of the laser line is in this case 58.75: integer part is calculated from the 8 bits of 3D
row 0 followed by the 2 MSB of 3D row 1: 0b0000111010 = 0x03a = dec 58. The fractional part
is calculated from the 6 LSB of 3D row 1: 0b110000 = 0x30. This value must be divided by 64:
0x30 / 64 = 0.75.
The laser line width is 10 pixels (6 LSB of 3D row 2).
The LL_HEIGHT value is in this case 8 (=4 MSB of 3D row 3). This means that the 4 MSB of the
highest gray value have the value 8. At 12 bit resolution, the highest gray value lies between
0x800 (=2048) and 0x8ff (=2303).
! D r o w
0
1
2
3
Figure 5.15: 3D data calculation example (3D03 models)
5.2.10 Transmitted data in 2D&3D mode
The transmitted image in 2D&3D mode is shown in Fig. 5.16. The data is transmitted in the
following order:
•
Scan area for peak 0
•
Scan area for peak 1 (omitted if PeakDetector_NrOfPeaks=1)
•
2D line for peak 0
•
3D data for peak 0
•
2D line for peak 1 (omitted if PeakDetector_NrOfPeaks=1)
•
3D data for peak 1 (omitted if PeakDetector_NrOfPeaks=1)
Resulting height in 2D&3D mode is:
Hres = Peak0_3DH + 5 (if PeakDetector_NrOfPeaks=1), or
Hres = Peak0_3DH + Peak1_3DH + 10 (if PeakDetector_NrOfPeaks=2)
5.2.11 Transmitted data in 3Donly mode
In 3Donly mode only the 2D lines and the 3D data is transmitted. The FrameCombine feature
(see Section 5.2.12) was added to lower the transmitted frame rate. For FrameCombine = f, the
data for f images are combined into one image.
Resulting height in 3Donly mode is therefore:
Hres = f * 5 (if PeakDetector_NrOfPeaks=1), or
Hres = f * 10 (if PeakDetector_NrOfPeaks=2)
.
MAN052 12/2018 V3.2
B i t s
7
6
5
4
3
0
0
0
0
1
1
0
1
1
0
0
0
0
0
1
1
0
0
0
0
L L _ H E I G H T
2
1
0
2 o s i t i o n i n t e g r a l p a r t
1
1
0
0
0
0
P o s i t i o n f r a c t i o n a l p a r t
0
1
0
L a s e r l i n e w i d t h
0
0
0
5.2 3D Features
45 of 131
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