226
1.21.1.4.3 Additional Settings mvIMPACT Acquire - System Settings
Setting Value
Request Count 20
Note
A Request in the mvIMPACT Acquire API represents a buffer where an image with the current device
configuration is captured into. In order to avoid losing images at a high FPS, it's recommended to increase
the number of these request buffers (i.e. ' RequestCount' in ' SystemSettings', by default
the value is set to 4 for MATRIX VISION USB2.0 cameras), so that the driver can continue capturing
image data even if the host application is sometimes slower at processing an image than the camera at
transferring one. As a rule of thumb, the number of capture buffers should be configured roughly within
the range of FPS/2 and FPS/5. In the following test, the RequestCount is set to 20 which is roughly
FPS/5.
Camera Resolution Pixel Format Frame Rate [Frames/s] Bandwidth [MB/s] CPU Load
mvBlueFOX-IGC200wG 752 x 480 Mono8 94.72 33.88 ∼32%
1.21.1.4.4 Benchmarks
1.21.1.5 i.MX8M Mini
CPU ARM Cortex®-A53 @ 1.6GHz
Cores 4
RAM 1 GB
USB2.0 Interfaces 2
USB3.0 Interfaces None
Ethernet 1000 MBit
PCIe 1 x 1 Lane
Gen 2.0
1.21.1.5.1 General The carrier-board used in this test: MBa8Mx from TQ-Systems GmbH
Note
If you are looking for more information and guidance about installing mvIMPACT Acquire driver packages
via the Yocto Project, please choose an API-manual suited for your programming language and then go
to chapter "Installation From Private Setup Routines -> Embedded Linux -> Yocto Project". All API-
manuals can be found under https://www.matrix-vision.com/manuals/.
1.21.1.5.2 Test Setup
MATRIX VISION GmbH
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