12
Functions
DFW-SX910/X710
Cutting by Partial Scan mode
Vertical (Vertical Direction)
Horizontal (Horizontal Direction)
Partial Scan
The Partial Scan feature for outputting a small part of
the full image called a Region of Interest (ROI). The
ROI can be defined as any single contiguous rectangle
that can be drawn on an even 16
×
16 grid of the whole
image. The Unit Cell is the smallest region of interest
that can be defined as is one of the rectangles on the
even 16
×
16 grid.
DFW-SX910 unit cell = 80
×
60 pixels
DFW-X710 unit cell = 64
×
48 pixels
The frame rate of the camera can be increased by
reducing the number of vertical lines output. In Partial
Scan mode, the frame rate is determined by the
exposure/shutter time plus the time to transmit the
image. In free run mode, the exposure starts after the
last image is transmitted. In triggered mode, the
exposure can be overlapped with the image output but
care must be taken to ensure that the exposure end
does not occur before the ouput of the previous image.
To use the Partial Scan feature, set Format7, Mode0.
In Partial Scan mode, you can select from among
Mono8, YUV4:1:1, and YUV4:2:2 as the color coding.
