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Glossary
IP66
The "IP" of IP66 stands for Ingress Protection, and its two-digit number shows the
durability rating of equipment for outdoor use. The first digit of IP66 relates to the
ingress protection against dust, and "6" means "dust tight". The second digit of IP66
relates to the ingress protection against water, and "6" means protected against
"heavy jet sprays," such as conditions that can be encountered in hurricanes.
IK10
The IK rating system classifies the level of protection provided by electrical
appliances against external impacts from the outside.
An IK10-rated camera can withstand the impact of 20 Joules, meaning the camera
will withstand the impact of a 5 kg weight dropped on it from a height of 40 cm.
Day/Night
A day/night camera has two modes of operation: a day mode and a night mode.
The camera switches from day mode (Color) to night mode (B/W) by replacing its
infrared-cut filter with a clear filter. In night mode, the camera becomes sensitive to
near-IR light and is capable of reproducing images even when the scene is not
visible to the naked eye.
Electrical D/N
Electrical D/N is a technology to make the image more visible in low-light conditions
by removing the chroma signal to produce a B/W image.
Wide-D
State-of-the-art technologies to expand the video dynamic range of the camera to
improve the visibility of images even in extremely high-contrast environments.
Wide-D is a powerful feature to compensate for scenes with extremely poor contrast.
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View-DR™ Technology
View-DR is Sony's latest technology to produce images with an extremely wide
dynamic range. View-DR is a combination of Sony's full-capture Wide-D technology,
the high-speed Exmor CMOS sensor, and Visibility Enhancer (VE). The full-capture
Wide-D technology used in View-DR technology uses an electronic shutter to capture
multiple images, to reproduce each frame. One image is taken using a 'standard'
exposure time and either one or three images are taken using very short exposure
times depending on the camera type. With the newly developed View-DR algorithm,
all of the electrons converted from the captured light is fully used by the imager,
which is quite different from DynaView technology and some other Wide-D
technologies in the industry that discard approximately ½ of the electrons. As a
result, View-DR nearly doubles the sensitivity compared to conventional Wide-D
technologies. To capture multiple HD resolution images at a very high speed, the
"Exmor" CMOS sensor was adopted because of its high-speed readout characteris-
tics. During the process of combining multiple images, the Visibility Enhancer (VE) is
employed to provide a high level of chrominance and luminance. With View-DR, the
monitored images become very visible – sometimes even more than when viewed
with our naked eyes.
Visibility Enhancer (VE)
VE is one of Sony's new technologies that optimizes contrast and makes a scene
more visible. It is ideal for scenes where objects are hard to recognize due to severe
backlight or shadows. VE optimizes the brightness and color reproduction of an
image dynamically on a pixel-by-pixel basis while continuously adapting to the
scene. Technically, VE stretches the contrast in both the backlit portions and the
shadows within the given dynamic range, which is different from Wide-D.
VE also contributes to the high sensitivity of the camera. By combining VE with XDNR,
the camera can reproduce clear and bright images in very low-light conditions,
while keeping noise at a minimal level.
XDNR™ Technology
(eXcellent Dynamic Noise Reduction)
XDNR is Sony's latest technology for noise reduction in IP security cameras. XDNR
utilizes 2D and 3D noise reduction methods adaptively to scenes. Under low-light
conditions, XDNR technology provides clear images for both moving objects and still
portions of the image, using 2DNR and 3DNR, respectively. This method provides
clear images while minimizing motion blur which is a challenge in any outdoor
surveillance monitoring applications, such as in parking lots.
DEPA™ System
With a Sony DEPA system, DEPA-enabled cameras send not only video images but
also related metadata, including object data (size and position) to the DEPA-enabled
recorder. Since part of the image processing is done on the camera side, the load
to the recorder can be reduced enabling camera expansion. Conventional video
analytic systems, on the other hand, process images solely on the recorder side often
causing CPU overload.
DEPA Advanced
DEPA Advanced is an enhanced DEPA technology. Unlike DEPA, a camera
incorporating DEPA Advanced completes the entire DEPA analysis such as intrusion
detection with a virtual borderline on the camera side, and sends only an alarm to
the recorder. Enhancements also include a tamper alarm, shadow cancellation,
a beam intrusion detector, and audio analysis. Since the analytic processing is
completed in the camera, end users can benefit from DEPA Advanced because it can
be easily integrated with a variety of recorders and/or video management solutions.
ONVIF™ Software
ONVIF software defines a common protocol for the exchange of information between
different network video devices regardless of manufacturer, and achieves greater
interoperability in multi-vendor network video systems.
PoE
(Power-over-Ethernet, IEEE 802.3af)
PoE enables networked devices to receive power up to 12.95 W from PoE-enabled
equipment through the same Ethernet cable that transports data. It provides
substantial savings in installation costs and can simplify the installation process.
hPoE
(High PoE, IEEE 802.3at)
hPoE enables networked devices to receive power up to 25 W from hPoE-enabled
equipment through the same Ethernet cable that transports data. hPoE is useful
especially for PTZ/Rapid Dome cameras that require motor control.