1.3DDNR: 3-D Digital noise reduction. For processing the
video so there is less noise (noise are something like those colorful static,
snowy things on the video, can be from any electrical interference.
2. Auto Iris:The Auto Iris Lens
is a type of lens that can be electronically controlled.This type of lens
allows maintaining the lighting level. It is applicable where the light condition
varies continuously. Auto iris lens allows the camera to adjust to get the
best picture in the given lighting conditions. There are two types of Auto
iris lenses, Fixed Auto Iris lenses and Varifocal Auto Iris lens. Auto iris
lenses are best lens to use in any application as they are flexible and can
adjust to changing light levels. Auto iris lenses are used to produce
consistent video signals from cameras that view scenes in any varying light
levels. Auto iris lenses combines an electronically controlled iris, which
allows the lens to maintain one light level making them ideal for outdoor
users any other applications.
3. Baud Rate:The baud rate is associated with many
mathematical formulas. Its units are either symbols per second or pulses per
second. Baud can be determined by using the following formula: Baud =(Gross
Bit Rate /Number of Bits per Symbol). This can be used to translate baud into
a bit rate using the following formula: Bit Rate =(Bits per Symbol * Symbol
Rate). Baud can be abbreviated using the short eneddform “Bd” when being used
for technical purposes. Setting for PTZ, Baud rate/Camera address/Protocol on
camera must be the same as on the DVR in order to make the PTZ from the
DVR.
4.CablesVGA: Video Graphics Array (VGA) refers
specifically to the display hardware first introduced with the IBM PS/2 line
of computers in 1987. BNC: The BNC connector (Bayonet Neill–Concelman) is
miniatures quick connect or disconnect RF connector used for coaxial
cable. It features two bayonet lugs on the female connector;mating is
achieved with only a quarter turn of the coupling nut. BNC are ideally suited
for cable termination for miniature-to-subminiature coaxial cable.HDMI:
High-Definition Multimedia Interface is a compact audio/video interface for
transferring uncompressed digital video data and compressed/uncompressed
digital audio data from an HDMI-compliant device (“the source
device”) to a compatible digital audio device, computer monitor, video
projector, or digital television. HDMI is a digital replacement for existing
analog video standards. HDMI support 1080P.
5. CCD:Charger-coupled-device
also refers to the camera’s image sensor.
6. CMS: Central Management
system, the software on the CD that ships with our DVR is this program,
allowing multiple DVR and up to 1000 cameras to be view at the same time.
7.
CMOS:Complementary metal-Oxide-semiconductor refers to the camera’s image sensor
technology. (cheaper to manufacture, also smaller, uses less power and a
newer technology)
8.CS Mount( Sea wolf box camera): refers to the
mounting style of the lens,the way the lens screw into the box camera.
9.DVR: A
digital video recorder (DVR), sometimes referred to by the merchandising term
personal video recorder (PVR), is a consumer electronics device or
application software that records video in a digital format to a disk drive,
USB flash drive, SD memory card or other local or networked mass storage
device.The term includes set-top boxes (STB)with direct to disk recording
facility, portable media players (PMP) with recording, recorders (PMR) as
camcordersthat record onto Secure Digital memory cards and software for
personal computers which enables video capture and playback to and from a
hard disk drive. A television set with built-in digital video-recording
facilities was introduced by LG in 2007, followed by other
manufacturers.
10. Dual stream: Master stream and Sub stream. Master
stream: same FPS and resolution at live view and DVR (ex: D1 at 30 fps),
required more bandwidth. Sub stream: lower the FPS and resolution of the live
video (ex: D1 at 30 fps at the DVR will become CIF at 7fps in internet
explorer, can be change inside setting, and required more bandwidth). Sub
stream is good for networks with slow upload speeds, all the cameras are on
sun stream by default when you access it remotely.
11.Digital Zoom: Digital zoom
on the other hand is not a true form of a zoom function. The image itself
doesn’t actually come any closer as the optics in the camera stays the same.
The way the digital zoom works is much the same way as it does on your PC at
home. The idea behind digital zoom is that it takes a portion of the image
and expands that image to the full size of the picture. What happens here is
that the section of image that you are looking at becomes bigger, not closer.
The image does look closer because it has been expanded however all that has
happened is that the image quality has been reduced because it has been
expanded with no new data for the image. There is nothing digital zoom can do
that you can’t do on any standard art package at home. You may as well take
the picture like you would a normal camera and then alter the zoom to exactly
the way you want it at home. It will be no better or worse doing it this way
that it would using a digital zoom function.
12. Dual core:refers to the
processor in the motherboard of the DVR, will be able to format hard drive
faster, and boot up faster, same as old DVR, but faster.
13. DVD RW: DVD burner for the
DVR.
14.E-Map: One of the function of CMS, able to take a
picture (ex: a floor plan)click and drag connected cameras to specific spots
on the picture (ex: Drag the front door camera to the front door spot on the
floor plan) and double clicking the camera icon will pop up a live view of
the camera.
15.FPS: Frame rate (also known as frame frequency) is the
frequency (rate) at which an imaging device produces unique consecutive
images called frames. The term applies equally well to film and video
cameras, computer graphics, and motion capture systems. Frame rate is most
often expressed in frames per second (FPS) and is also expressed in progressive
scan monitors as hertz (Hz). 30 FPS is real time.
16. Fisheye camera: A fisheye
lens is an ultra-wide-angle lens that produces strong visual distortion
intended to create a wide panoramic or hemispherical image.[1][2] Fisheye
lenses achieve extremely wide angles of view by forgoing producing images
with straight lines of perspective (rectilinear images), opting instead for a
special mapping (for example: equisolid angle), which gives images a
characteristic convex non-rectilinear appearance. In simple, fisheye camera
can have a really wide angle view.
17.GB/TB: refer to the hard
drive size. Gigabyte/ Terabyte, 1000GB=1TB.
18. HD: High Definition 720 P (
1.3Megapixel, 1280×1024) Full HD: Full
High Definition 1080 P (2.1 Megapixel, 1920×1080)
19.DSP: Digital Signal
Processing, a technique by which video quality can be improved by adjusting
parameters of the video signal.
20. HD-SDI: Serial digital
interface (SDI) is a family of video interfaces standardized by SMPTE (The
Society of Motion Picture and Television Engineers). For example, ITU-R
BT.656 and SMPTE 259M define digital video interfaces used for
broadcast-grade video.A related standard, known as high-definition serial
digital interface (HD-SDI), is standardized in SMPTE 292M; this provides a
nominal data rate of 1.485 Gbit/s.
22.IP camera: An Internet
protocol camera, or IP camera, is a type of digital video camera commonly
employed for surveillance, and which unlike analog closed circuit television
(CCTV) cameras can send and receive data via a computer network and the
Internet. Although most cameras that do this are webcams,the term “IP
camera” or “netcam” is usually applied only to those used for
surveillance. can be hooked into a router with a PoE witch, can be uses with
a NVR or just by itself (access the IP camera with its IP address or the
program that comes with it called PSS (Pro Surveillance System), can also be
accessed with smart phone app iDMSS after ports are opened on the router for
the IP camera.
23.IR cutter : Infrared cut-off filters, sometimes called
IR filters or heat-absorbing filters, are designed to reflect or block
mid-infrared wavelengths while passing visible light. They are often used in
devices with bright incandescent lightbulbs (such as slide and overhead
projectors) to prevent unwanted heating. There are also filters which are
used in solid state (CCD or CMOS)video cameras to block IR due to the high
sensitivity of many camera sensors to near-infrared light. These filters
typically have a blue hue to them as they also sometimes block some of the
light from the longer red wavelengths. In simple, an IR cut filter is an
extra filter inside the camera that moves behind the camera lens when it have
low light source. A camera with an IR cut filter will produce very high
quality images in low light condition.
24. Lux Rating: A LUX,
abbreviated lx, is the International System of Units (SI) measure of the
intensity of light. It can be thought of as the strength of light as
determined by the human eye. A LUX is based on another unit of light
measurement called a lumen, which is based on yet another unit called a
candela. In the United States, the non-SI unit to measure light intensity is
the footcandle. One foot candle is approximately equal to 10.8LUX. In order
to put things in perspective, here some are some setting examples with their
equivalent LUX rating:• A quarter moon-lit night produces about .01 LUX• A
full moon on a clear night produces about 0.27 LUX• A full moon on a clear
night near the equator produces about 1 LUX• An average family room produces
about 50 LUX• An overcast, dark day produces about 100 LUX• Typical office
lighting ranges from about 300 to 500 LUX• Direct sunlight can range from
about 30,000 to 130,000 LUXThe LUX rating of a security camera is based on
several factors, three of which are the lens,sensor chip, and “F stop.” The
lower the LUX rating of a security camera the less light is needed for the
camera to produce a usable picture (video).
25. Manual Iris: The Manual
Iris lens is the simplest type of iris control lens with manual adjustment to
set the iris opening in a fixed position. These are generally used for fixed
lighting applications or where the camera to be used is readily accessible.
The lens is outfitted with a ring on the body that can be turned to alter the
aperture directly. There are two types of Manual iris lenses, Fixed Manual
Iris lensesand Varifocal Manual Iris lens.The Manual Iris lens is convenient
to use where it is not necessary to adjust the lens continuously for correct
picture brightness. These types of lens are used with constant light. It is applicable
in shopping centers, schools,libraries, and offices. The lens can be turned
to alter the aperture directly with the help of a ring which is present on
the body.
26. NVR: network Video Recorder
27.Night wolf: Marketing term
of image sensor by Pixim for their IR at night or lowlight area. 28.Optical
Zoom: Optical zoom is what I like to call true zoom. This function of a
camera uses the lens within the camera to draw the image closer. Using the
optics of the camera the image is bought forward much the same way as
binoculars and other such instruments. When using optical zoom quality
remains the same and the full resolution of the camera can be used on the
zoomed image.Different levels of optical zoom can be achieved by changing the
distances between the lenses. The motion of the front lens moving outwards on
a camera is the lens achieving a greater level of zoom. The rating of optical
zoom on a camera is measured like 2x 4x 8x etc. bringing the image 2x 4x and
8x closer respectively. The best cameras have a high level of optical
zoom.
29.OSD: On screen menu.
30. PoE : Power over
Ethernet
31. PTZ: Pan,Tilt, Zoom, you can move the camera left and
right, up and down and zoom in and zoom out.
32.Pixelplus: marketing term
for CMOS sensors by Pixelplus company
34. RS485: EIA-485, also known
as TIA/EIA-485 or RS-485,is a standard defining the electrical
characteristics of drivers and receivers for use in balanced digital
multipoint systems. The standard is published by the
Telecommunications/Electronic Industries Alliance (TIA/EIA). Digital communications
networks implementing the EIA-485 standard can be used effectively over long
distances and in electrically noisy environments. Multiple receivers may be
connected to such a network in a linear, multi-drop configuration. These
characteristics make such networks useful in industrial environments and
similar applications. Communication between DVR and PTZ/zoom cameras, A/B=
positive/ negative. Y/Z=positive/negative. Positive wires of camera connects
to positive port of DVR, negative wires of camera connects to negative port
of DVR. RS stands for “Recommended Standard”
35.Sens-up: Sens-up in theory
make a camera more sensitive to light so it can produce images even in low
lux (low light) conditions. Sens-up tries to eliminate the need for IR
cameras which uses IR LED’s or invisible light to providing images in low lux
or in the pitch dark.36.Smart IR: Automatically adjust the infrared light
required in a scene as the subject moves closer or further from the camera,
resulting in a clear image that is not washed out or too dark. Farther away=
more IR light. Closer= less IR light.
37. SATA HDD:SATA refers to the
connection between the motherboard and the hard drive. HDD refers to hard
drive that installed on the DVR.
38. Spot out:Port for
connecting the DVR to a regular TV, will then feed a video which will rotate
to the next channel after a time. Useful for making sure customers know that
they are being watched.
39.Seawolf: Marketing tern of image sensor by Pixim,
mostly about the WDR.
40.Sony Effio-P: Sony’s brand of image processor and WDR.
41.Starlight: technology that is much more sensitive and
better in low-light setting than traditional IR.
42. TVL:Television lines (TVL)
is a specification of an analog camera’s or monitors’ horizontal resolution
power.It is alternatively known as Lines of Horizontal Resolution (LoHR), aka
linesof resolution . The TVL is one of the most important resolution measures
in a video system. The TVL can be measured with the standard
EIA-1956resolution chart.