Noise Reduction - Sony FCB-EX2700P Technical Manual

Supplemental explanation
In the WD mode, there is a restriction as follows.
W hen 60p/50p is output, the information amount is

equivalent to 30p/25p because the long exposure
signal and short exposure signal are combined.
As for during the VE mode and interlace output, the
information amount will be 60p/50p.
As for the VE mode, the information amount of 60p
can be used because it performs processing with a
single image without a change in the frame rate even
when the progressive mode CCD reading is
performed.
When 30/25 fps is output, the WD mode cannot be ON. Use the VE
mode.
A bout WD Set Parameter

(Command: 8x 01 04 2D 0p 00 00 00 0t 0u 0v 0w
FF)
p: Screen display (0: Combined image, 1: Long/short
division, 2: Long-time, 3: Short-time)
Set the screen display to a WD combination image,
long/short exposure division image, long exposure
image, or short exposure image.
tu: Parameter to use in the exposure ratio mode.
Specify the short exposure time by setting the
magnification ratio (×1 to ×128) with regards to a
long exposure time.
v: Maximum gain (0: low 1: middle 2: high)
The gain amount for correcting the blocked-up
shadow is adjusted.
w: 0: low intensity priority 1: balance 2: high
intensity priority
In the low intensity priority, the contrast of dark
portion is emphasized with high priority.
In the high intensity priority, the contrast of bright
portion is emphasized with high priority.
Notes
The following phenomena are unique to the wide dynamic range
mode, and are not an indication of camera malfunction.
Solarization may be observed in the images of some subjects.

Since the image is generated by combining the long exposure and

short exposure, noise may appear in the combined area.
Flickering may appear when a flashing light source like

fluorescent lamp is shot.

Noise Reduction

The NR (Noise Reduction) function removes noise
(both random and non-random) to provide clearer
images. By combining 2D filtering according to
brightness and image color, and 3D filtering according
to noise caused by motion and time difference, lower-
noise images can be obtained for the corresponding
image brightness of a moving subject.
This function has six steps: levels 1 to 5, plus off.
Level 1 applies to subject motion mainly using 2D filter
effects. With level 5, 2D and 3D filter effects are
maximized, providing the lowest-noise images,
although moving subjects may show trails.
At each level, two filters are set according to noise and
image motion characteristics, so the available level
selections depend on the situation. The default setting
is level 3.
When the wide dynamic range mode (not including VE mode) is ON
in the progressive mode, only the 2D filter operates.
StableZoom™
StableZoom is a function for performing correction
using the Image Stabilizer function in accordance with
the zoom ratio, and smoothly zooming up to
approximately ×44 using a combination of the optical
zoom and digital zoom. The digital zoom can be
further used to zoom up to ×480.
At the wide end, you can obtain images without any
reduction in the angle of view and resolution because
the digital zoom is not switched ON. On the other
hand, at the Tele end, the correction effect by the Image
Stabilizer function is at its maximum so blurring is
reduced.
The StableZoom function can be switched ON/OFF in
the register settings.
Blurring is corrected in this
x480
digital zoom area.
approx.
x44
x40
Zoom
ratio
Wide Optical zoom position
Angle of view and resolution
Basic Functions
StableZoom
Digital zoom
Optical zoom
The digital
zoom is not
switched ON
at the wide
end.
Tele
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