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Operational Reference
Nano Series GigE Vision Camera
Using the Multiple ROI Mode
Genie Nano monochrome cameras implement the Multiple ROI mode (region of interest) features,
which allow having 2 to 16 smaller image ROI areas versus the single ROI area possible with
vertical and horizontal crop functions.
These multiple areas are combined as one output image, reducing transfer bandwidth
requirements, plus with the added benefit that any reduction of the number of vertical lines output
will result in a greater possible camera frame rate. This increased frame rate increase (written to
internal memory) is similar to using the vertical crop feature.
Important Usage Details
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Two to 16 ROI areas are supported by the Genie Nano ( 4x4 matrix maximum).
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For any selected ROI, the Offset X/Offset Y features define the upper left corner of the ROI.
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Offset, Width, and Height features have individual increment values (step size) to consider.
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The first ROI of any row sets the “height value” for any other ROI in that row.
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The first ROI of any column sets the “width value” of any other ROI in that column.
The following graphics show examples of the multi-ROI function (2x1 and 2x2 areas), the resultant
camera output, and the constraints when configuring the ROI areas.
Example: Two Horizontal ROI Areas (2x1)
ROI (x1,y1)
ROI (x2,y1)
ROI (x1,y1)
ROI (x2,y1)
2 ROI Areas Defined
Camera Outputs only the 2 ROI Areas
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Note that ROI(x1,y1) defines the height of any ROI in that row.
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ROI(x2,y1) can have a different width.
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The camera output image frame consists only of the two ROI areas. The user must account for
the change between ROI data for each output image row.
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The output image being smaller, reduces the bandwidth requirements.
Содержание Genie Nano Series
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