Photon Focus MV0 3D06 Series, Руководство пользователя, Страница: 73 / 125

11.5 3D Features
11.5.5 3D modes
The camera has three modes that determine which data is transmitted to the user:
2Donly Laser detection is turned off and camera behaves as a normal area scan camera. This
mode serves as a preview mode in the setup and debugging phase.
2D&3D Laser line detection is turned on. The sensor image (2D image) is transmitted together
with the 3D data. In the PF 3D Suite, the detected laser line is shown as a coloured line in
the 2D image. This mode serves as a preview mode in the setup and debugging phase of
the triangulation system.
3Donly Laser line detection is turned on and only 3D data is transmitted. The scan rate of this
mode is considerably faster than the 2D&3D mode.
The 3Donly mode must be used to achieve the highest scan rate.
11.5.6 3D data format
For every peak there are 4 or 2 lines that contain the 3D data. Every pixel contains 8 bits of 3D
data which are always placed in the 8 LSB. A table with the bit assignment of the 3D data for
DataFormat3D
=2 is shown in Fig. 11.9,
DataFormat3D
=3 in Fig. 11.10 and
DataFormat3D
=4 in Fig.
11.11 . Note that every value described in this table (with exception of STAT data) is the value
for the corresponding image column. The peak position coordinate (PEAK) is relative to the
scan area of the peak. To get the absolute position on the image sensor, the value Peak_3DY
must be added.
LL_WIDTH is the laser line width and LL_HEIGHT is the laser line height as explained in Section
11.5.3.
STAT value: the status (value) of some parameters and internal registers are placed here. The
status information is described in Section 11.6.2. In every pixel (column) 4 bits of this status
information send, starting with the LSB in the first column.
3 D r o w
7 6 5 4 3 2 1 0
B i t s
D e s c r i p t i o n
0 P E A K [ 1 5 : 8 ]
D e t e c t e d l a s e r l i n e c o o r d i n a t e .
P E A K [ 1 5 : 4 ] : i n t e g e r p a r t , P E A K [ 3 : 0 ] : f r a c t i o n a l p a r t .
1
P E A K [ 7 : 0 ]
Figure 11.9: 3D data format. DataFormat3D=2
MAN082 09/2019 V1.0 73 of 125