81
Alvium USB Cameras User Guide V3.3.0
Specifications
ROI frame rates
200 to 300 MBps
Values were measured for
typical operation
, using the test setup defined in
To reach the maximum frame rate available for typical operation, the bandwidth
for image traffic is 350 MBps. Increasing the
DeviceLinkThroughputLimit
value
does not increase frame rates.
Image format
Width
[pixels]
Height
[pixels]
ROI area
[pixels]
Frame rate [fps]
200 MBps
250 MBps
300 MBps
Full resolution
2,592
1,944
5,038,848
38
48
57
QXGA
2,048
1,536
3,145,728
61
76
85
Full HD
1,920
1,080
2,073,600
92
115
120
UXGA
1,600
1,200
1,920,000
100
109
WXGA+
1,440
900
1,296,000
143
SXGA
1,280
1,024
1,310,720
127
HD 720
1,280
720
921,600
177
XGA
1,024
768
786,432
167
SVGA
800
600
480,000
212
VGA
640
480
307,200
261
QVGA
320
240
76,800
487
QQVGA
160
120
19,200
856
Maximum × half
2,592
972
2,519,424
75
94
113
Maximum × minimum
2,592
8
20,736
1,402
1,690
1,927
Minimum × maximum
8
1,944
15,552
68
Minimum × minimum
8
8
64
2,892
Table 31: Alvium 1800 U-500m/c ROI frame rates at 200 to 300 MBps
Frame rate values
•
Frame rates increase when bandwidth is increased, see
•
When rolling shutter cameras are operated in triggered mode, the values for
maximum frame rate reached in free run mode are cut in half.