JAI Spark SP-5000M-GE2, User Manual

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SP-5000M-GE2 / SP-5000C-GE2
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The RAW data contains only luminance information for each color and outputs as a monochrome
signal. The Bayer color interpolation function can complement lacking color information on each
pixel and output RGB or YUV color data as the result. Color interpolation compensates for the lack
of color information by using information from adjacent pixels. The following is the concept
drawing for the color interpolation process. It is invoked when one of the interpolated pixel formats
(RGB or YUV) is selected.
G ｒ
B3 Gb2 B4
B1 Gb1 B2
G ｒ 1 R G ｒ 2
Gb3 B2 Gb4
Gb1 B1 Gb2
R1 G ｒ R2
R3 G ｒ 2 R4
R1 G ｒ 1 R2
Gb1 B Gb2
Fig.53 Color interpolation concept drawing
8.8 Lens control
The SP-5000M-GE2 and SP-5000C-GE2 can be used with 4 different types of auto iris lenses, in
addition to standard lenses with manual iris control. If an auto iris function is to be utilized, the lens
type used must be selected in Lens Select.
Table28. Lens selector
Lens Select Description (Control with
camera) Note
P-Iris Lens 1) Iris position can be
remotely controlled manually
2) Auto iris control is also
available If P-iris lens is used, the
specific model name should
be selected in Lens Select.
Motor controlled lens 1) Iris position can be
remotely controlled manually
2) Auto iris control is also
available
Video iris lens Only auto iris control is
available Factory Option
DC iris lens Only auto iris control is
available Factory Option
8.8.1 About P-Iris
New Spark Series SP-5000M-GE2 and SP-5000C-GE2 come equipped with P-Iris control as part of the
standard lens control function. The P-Iris system is a newly developed lens control method designed
to control the iris more precisely. Especially for video cameras in surveillance applications utilizing
megapixel CCD or CMOS imagers, it becomes a very important factor to control an iris in order to
achieve the maximum camera performance. In surveillance applications, depending on shooting
conditions, resolution and depth of field are important factors. The iris is deeply related with these
factors. If the iris diaphragm is smaller, but not too small, resolution gets better and the depth of
field is also deeper. The P-Iris system controls the iris diaphragm precisely and maintains the best
image with the highest resolution and depth of field. P-Iris can also combine with gain and
electronic shutter to keep the appropriate iris position under changing lighting conditions (ALC
function).