Allied Vision Alvium 1800 U-050c, User Manual

Page: 40 / 148

Specifications
40 Alvium USB Cameras User Guide V3.1.3
ROI frame rates
Values were measured for typical operation , using the test setup defined in
Exposure time and frame rate on page 30.
To reach the maximum frame rate available for typical operation, the bandwidth
for image traffic is 200 MBps. Increasing the
DeviceLinkThroughputLimit
value
does not increase frame rates.
Image format
Width
[pixels]
Height
[pixels]
ROI area [pixels]
Frame rate [fps]
at 200 MBps
Full resolution 808 608 491,264 115
VGA 640 480 307,200 174
HVGA 480 320 153,600 309
QVGA 320 240 76,800 502
HQVGA 240 160 38,400 758
QQVGA 160 120 19,200 1,030
Maximum × half 808 304 245,632 216
Maximum × minimum 808 8 6,464 1,332
Minimum × maximum
8
1
608 4,864 712
Minimum × minimum
8
1 8 64 1,880
1
Constant for values ≤ 16 pixels
Table 12: ROI frame rates for 1800 U-050m/c at 200 MBps