114
Alvium USB Cameras User Guide V3.3.0
Specifications
ROI frame rates
200 to 300 MBps
Values were measured for
typical operation
in rolling shutter (RS) mode, using the
test setup defined in
To reach the maximum frame rate available for typical operation, the bandwidth
for image traffic is 375 MBps. Increasing the
DeviceLinkThroughputLimit
value
may even increase frame rates if supported by the hardware used.
Image format
Width
[pixels]
Height
[pixels]
ROI area
[pixels]
Frame rate [fps]
200 MBps
250 MBps
300 MBps
Full resolution
4,512
4,512
20,358,144
9
11
14
HXGA
4,096
3,072
12,582,912
15
18
22
UHD 4K
3,840
2,160
8,294,400
22
28
33
QSXGA
2,560
2,048
5,242,880
35
44
52
WQHD
2,560
1,440
3,686,400
49
60
72
QXGA
2,048
1,536
3,145,728
57
71
Full HD
1,920
1,080
2,073,600
84
97
UXGA
1,600
1,200
1,920,000
89
WXGA+
1,440
900
1,296,000
114
SXGA
1,280
1,024
1,310,720
102
HD 720
1,280
720
921,600
138
XGA
1,024
768
786,432
131
SVGA
800
600
480,000
161
VGA
640
480
307,200
193
QVGA
320
240
76,800
314
QQVGA
160
120
19,200
458
Maximum × half
4,512
2,256
10,179,072
18
23
27
Maximum × minimum
4,512
8
36,096
297
357
414
Minimum × maximum
8
4,512
36,096
25
Minimum × minimum
8
8
64
798
Table 50: Alvium 1800 U-2040m/c ROI frame rates at 200 to 300 MBps
Frame rate values
•
In triggered mode, the values for maximum frame rate reached in free run
mode are cut in half.
•
Frame rates increase when bandwidth is increased, see
