THORLABS DCU223x Operation Manual And Sdk page 162

DCx Cameras
o is_SetFrameRate()
o is_Exposure()
216
o If you are using the flash function:
2. Step widths for AOI definition (position grid)
The available step widths for the position and size of image AOIs depend on the sensor. The values defining the
position and size of an AOI have to be integer multiples of the allowed step widths.
For details on the AOI grids of the individual camera models, please see
3. AOI in combination with high frame rates
With very small AOI and therefore high frame rate and maximum possible frame rate set, it is possible that the
USB camera transfers in freerun mode only half frame rates. This is a signal for a camera-internal overload. In this
case it is recommended to set the frame rate to maximum of 98 %.
Multi AOI function of the DCC1240x and DCC3240x models
The sensor of a.m. cameras supports multiple AOIs in one image capture. The AOIs are transferred together as
one image. In this mode you can create 2 or 4 AOIs, which have either the same X axis or the same Y axis (see
also uc480 Viewer: Multi AOI
direction.
Sequence AOI mode for DCC1240x and DCC3240x camera models
A.m. camera models have a special AOI mode. In this mode you can define besides the normal AOI (AOI 1) up to
3 further AOI on the sensor (see uc480 Viewer:
only the following combinations are possible:
1. All additional AOIs are off. AOI 1 is always active.
2. AOI 2 (+ AOI 1)
3. AOI 2 and 3 (+ AOI 1)
4. AOI 2, 3 and 4 (+ AOI 1)
It is not possible to have a combination e.g. of AOI 2 and AOI 4.
The parameters of AOI 2, 3 and 4 are defined by the
binning, subsampling and scaler are not supported.
Input parameters
hCam
nCommand
IS_AOI_IMAGE_SET_AOI
IS_AOI_IMAGE_GET_AOI
IS_AOI_IMAGE_SET_POS
IS_AOI_IMAGE_GET_POS
IS_AOI_IMAGE_SET_SIZE
IS_AOI_IMAGE_GET_SIZE
IS_AOI_IMAGE_GET_POS_MIN
IS_AOI_IMAGE_GET_SIZE_MIN
IS_AOI_IMAGE_GET_POS_MAX
IS_AOI_IMAGE_GET_SIZE_MAX
IS_AOI_IMAGE_GET_POS_INC
IS_AOI_IMAGE_GET_SIZE_INC
IS_AOI_IMAGE_GET_POS_X_ABS
160
329
is_IO()
280
). The sensor is faster in this mode. It is possible to switch the AOI in the horizontal
112
Sequence AOI
Camera handle
Sets the position and size of the image by using an object of the
type. Sample 1 for AOI
You can define the start position of the AOI in the memory by ORing
IS_AOI_IMAGE_POS_ABSOLUTE
AOI position
Returns the AOI in an
Sample 2 for AOI
Sets the AOI position by using an object of the
IS_AOI_IMAGE_POS_ABSOLUTE
the AOI position
Returns the position in an
Sets the AOI size by using an object of the
Returns the size in an
Returns the minimum possible position in an
Returns the smallest possible size in an
Returns the maximum possible position in an
Returns the largest possible size in an
Returns the increment for the position in an
Returns the increment for the size in an
Returns an
UINT
Camera and sensor data.
). When activating the sequence mode, note that
113
AOI_SEQUENCE_PARAMS
164
with the X or Y position.
164
object.
IS_RECT
164
can be ORed here, as well.
164
IS_POINT_2D
object.
IS_SIZE_2D
object indicating whether
460
structure. In the version 4.20
162
Sample for setting the
type.
IS_POINT_2D
Sample for setting
object.
type.
IS_SIZE_2D
object.
IS_POINT_2D
object.
IS_SIZE_2D
object.
IS_POINT_2D
object.
IS_SIZE_2D
object.
IS_POINT_2D
object.
IS_SIZE_2D
IS_AOI_IMAGE_POS_ABSOLUTE
© 2013 Thorlabs GmbH
IS_RECT
is