Photon Focus MV-D1024E-3D01-160, User Manual

Page: 52 / 97

4 Functionality
The line position is split into a coarse position and a fine position (sub-pixel). The coarse
position is based on the pixel pitch and is transferred in Peak [15:6]. The sub-pixel position that
was calculated from the Peak Detector algorithm (6 bit sub-pixel information) is mapped to
Peak [5:0]. The value ranges of the 3D data block are listed in Table 4.7.
If the camera is operating in a greyscale resolution mode higher than 8 bit, then
the MSBs are filled by 0 (except for the quality indicator). This means that only
bits [7:0] contain the 3D information.
3D Data Value range
PEAK [15:6] 0 .. 1023
PEAK [5:0] 0 .. 63
WIDTH [7:0] 0 .. 63
WIDTH [1:0] 0 .. 3
QUAL [(gr-1):0] 0 .. (2
gr
- 1)
Table 4.7: Value ranges of the 3D data block ("gr" indicates the greyscale resolution)
4.9 Configuration Interface (CameraLink)
A CameraLink camera can be controlled by the user via a RS232 compatible asynchronous serial
interface. This interface is contained within the CameraLink interface as shown in Fig. 4.40 and
is physically not directly accessible. Instead, the serial communication is usually routed through
the frame grabber. For some frame grabbers it might be necessary to connect a serial cable
from the frame grabber to the serial interface of the PC.
.
Ca
m
er
aL
in
k
C a m e r a
I m a g e d a t a ,
F V A L , L V A L , D V A L
P i x e l C l o c k
C C S i g n a l s
S e r i a l I n t e r f a c e
F r a m e -
g r a b b e r
Ca
m
er
aL
in
k
Figure 4.40: CameraLink serial interface for camera communication
50