139Alvium USB Cameras User Guide V4.6.1
Specifications
ROI frame rates
Values were measured as defined in Specified values on page 67.
To reach the maximum frame rate available for this setup, the bandwidth for image
traffic is 375 MByte/s. Increasing the
DeviceLinkThroughputLimit value does
not increase frame rates.
Shutter mode User mode Available frame rates
Rolling shutter (RS) Freerun Values in Table 57 below are reached.
Rolling shutter (RS) Triggered >50% of the values for in Table 57 below are reached.
Table 56: Frame rate behavior for different configurations
Image
format
Width
[pixels]
Height
[pixels]
ROI
area
[MP]
Frame rate [fps]
1
450 MByte/s 375 MByte/s 200 MByte/s
Full
resolution
2592 1944 5.039 68.2/43.2 68.2/36.4 38.8/19.5
WQHD 2560 1440 3.686 91.1/58.5 91.1/49.4 52.6/26.4
QXGA 2048 1536 3.146 85.9/68.7 85.9/57.9 61.8/31.0
Full HD 1920 1080 2.074 120.6/102.9 120.6/86.9 92.6/46.5
UXGA 1600 1200 1.92 109.2/109.2 109.2/94.1 100.3/50.4
WXGA+ 1440 900 1.296 143.9/143.9 143.9/137.9 143.9/73.9
SXGA 1280 1024 1.311 127.4/127.4 127.4/73.5
HD 720 1280 720 0.922 178.0/178.0 178.0/102.8
XGA 1024 768 0.786 167.9/167.9 167.9/120.8
SVGA 800 600 0.48 212.4/212.4 212.4/195.2
VGA 640 480 0.307 261.9/261.9
HVGA 480 320 0.154 379.3/379.3
QVGA 320 240 0.077 489.7/489.7
HQVGA 240 160 0.038 687.5/687.5
QQVGA 160 120 0.019 861.5/861.5
Max. × half 2592 972 2.519 132.7/84.4 132.7/71.2 75.8/38.1
Max. × min. 2592 8 0.021 2194.0/1561.7 2194.0/1364.6 1428.2/787.8
Min. × max. 8 1944 0.016 68.7/68.7
Min. × min. 8 8 64 P 2956.0/2956.0
1
Mono8 or Bayer...8
(2)
at SensorBitDepth = 10-Bit /
Mono10 or Bayer...10 at SensorBitDepth = 10 -Bit
2
The three dots... represent the colors of a Bayer pixel format, such as in BayerRG8.
Table 57: Alvium 1800 U-501m/c NIR ROI frame rates
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