Multiple Regions Of Interest - Photon Focus MV-D1024E CameraLink Series User Manual

4 Functionality
t frame time
frame
t exposure time
exp
t readout time
ro
processing time
t
proc
t RAM refresh time
RAM
t constant latency
Normal
t constant frame rate latency, only when CFR is enabled
CFR
t correction latency, only when correction is enabled
FPN
skim latency, only when Skimming is enabled
t
Skim
t pixel clock
CLK
taps CameraLink taps
P number of pixels in x-direction
X
number of pixels in y-direction (+1, for MV-D1024E-80 and MV-D1024E-160)
P
Y
line pause, constant LP = 8 for all models
LP
t
exp
t
Normal
t
CFR
t
FPN
t
Skim
t
CLK
taps
P
Y
Table 4.5: Camera specific values for frame time calculations
A calculator for calculating the maximum frame rate is available in the support
area of the Photonfocus website.

4.5.2 Multiple Regions of Interest

The MV-D1024E camera series can handle up to 16 different regions of interest. This feature
can be used to reduce the image data and increase the frame rate. An application example for
using multiple regions of interest (MROI) is a laser triangulation system with several laser lines.
The multiple ROIs are joined together and form a single image, which is transferred to the
frame grabber.
An ROI is defined by its starting value in y-direction and its height. Every ROI within a MROI
must be of the same width. The maximum frame rate in MROI mode depends on the number
of rows and columns being read out. Overlapping ROIs are allowed. See Section 4.5.1 for
information on the calculation of the maximum frame rate.
40
MV-D1024E-40 MV-D1024E-80
10 µs - 419 ms 10 µs - 838 ms
1975 ns
850 ns
150 ns
51.125 µs
25 ns
1
Window H Window H + 1
MV-D1024E-160
25 µs - 419 ms
2600 ns 1300 ns
0
0
101.6 µs 50.8 µs
25 ns 12.5 ns
2
Window H + 1
0
0
2