ALLIED Vision Technologies Pike F-1600 - Manual (Page 224)

Controlling image capture
PIKE Technical Manual V5.1.2
224
Sequence mode
Generally all AVT Pike cameras enable certain image settings to be modified on
the fly, e.g. gain and shutter can be changed by the host computer by writing
into the gain and shutter register even while the camera is running. An uncer-
tainty of up to 3 images remains because normally the host does not know
(especially with external trigger) when the next image will arrive.
Sequence mode is a different concept where the camera holds a set of different
image parameters for a sequence of images. The parameter set is stored volatile
in the camera for each image to be recorded. This sequence of parameter sets is
simply called a sequence. The advantage is that the camera can easily synchro-
nize this parameter set with the images so that no uncertainty can occur. All AVT
Pike cameras support 32 different sequence parameters.
Additionally to the sequence mode known from Marlin cameras, the Pike cam-
eras have:
• Repeat counter per sequence item
• Incrementing list pointer on input status (on/off)
• Pointer reset (software command; on input pin)
Examples For a sequence of images, each image can be recorded with a different shutter
or gain to obtain different brightness effects.
The image area (AOI) of a sequence of images can automatically be modified,
thus creating a panning or sequential split screen effect.
The following registers can be modified to affect the individual steps of the
sequence. Different configurations can be accessed via e.g a foot switch which
is connected to an input.
Mode this registers can be modified...
All modes Cur_V_Mode, Cur_V_Format, ISO_Channel, ISO_Speed, Brightness,
White_Balance (color cameras only), Shutter, Gain, LUT, TestImage,
Image-Mirror, HSNR, Output-Ctrl, ColorCorrection matrix (color cam-
eras only), ISO-Channel, Shading-Ctrl, Sequence-Stepping Mode,
SIS_UserValue
Fixed modes only Cur_V_Frm_Rate
Format_7 only Image_Position (AOI-Top, AOI-Left), Image_Size (AOI-Width, AOI-
Height), Color_Coding_ID*, Binning*, Sub-Sampling*,
Byte_Per_Packet
*hidden in video formats and video modes
Table 79: Registers to be modified within a sequence