The AVALON company presents a traditional review of new equipment for organizing video surveillance. This issue presents three models of IP cameras for indoor installation. The cameras are united by the presence of CMOS matrices manufactured by Sony, which form a video stream with Full HD resolution (1920x1080). Dome cameras are equipped with IR illumination.
The Amicom company has updated its line of MicroDigital brand equipment. Two video cameras with AHD technology have been added to it. They are designed for indoor use, are equipped with IR illumination and, if necessary, switch to the CVBS 960H format.
TD "Leader-SB" announces the availability of new multi-format video cameras AltCam 4CF21IR and 4DF21IR.
TD "Leader-SB" begins selling new IP video cameras Expert EN2-77Z4NI-DH and ENS3-77Z30N.
Amicom's product range includes analog equipment operating using HD-CVI technology. It is represented by video cameras in cylindrical and dome housings, as well as recorders for various numbers of channels.
The AVALON company, a supplier of Smartec brand equipment, announces the arrival on the Russian market of an updated model range of megapixel cameras for use in outdoor conditions.
TD "Leader-SB" presents new IP video cameras Samsung Security SNZ-6320P and SNO-E5011RP.
TB-Project Company, a distributor of Samsung in Russia, announces the arrival of new network street cameras of the series on the Russian market WiseNet Lite budget price range with a set of functions that are inherent in models of the WiseNetIII series.
TB Project Company, a distributor of the TVhelp brand, a domestic developer and manufacturer of video surveillance equipment, presents a series of outdoor anti-vandal cameras with a resolution of 1.3 MP and 2 MP. The range includes models with ceiling and wall mounting.
TD "Leader-SB" began selling new IP video cameras Dahua IPC-K200A and IPC-HFW5200P-IRA-0722A.
TD "Leader-SB" announces the availability of a new cylindrical IP video camera DIVITEC DT-IP2011BVF-I4P.
The AVALON company, the official dealer of Polyvision, has expanded its product range with new network video cameras PD21-M2-B2.8A-IP and PD21-M1-B2.8A-IP. These are new mini box dome cameras for indoor use.
Panasonic has released a new series of box cameras for outdoor video surveillance, WV-SPW631L and WV-SPW631LT. The TB-Project trading house announces the appearance of new products in Russia.
TD "Leader-SB" announces the availability of new IP video cameras BEWARD B89R-3270Z18 and BD3270Z18.
The Amikom trading house offers a new RVi brand solution for organizing perimeter video surveillance or monitoring large areas.
The TB-Project company, the official partner of Samsung in Russia, presents a new product in the line of outdoor dome cameras.
TD "Leader-SB" announces new IP video cameras eVidence Apix - MiniDome / M2 36 and Apix - Box / 4K.
The range of dome network video cameras has been expanded with a new model AiP-Z24N-45N0B from Acumen. The new product is capable of operating at extremely low and high temperatures, is equipped with IR illumination with a long range and supports 4-stream video to optimize outgoing traffic.
TD "Leader-SB" announces the availability of new IP video cameras PROvision PVD-IR305IPC and ARS-2014.
The Amicom company has included in its product range a new network video camera N520 with expanded security functionality.
TD "Leader-SB" announces the availability of a new IP video camera BEWARD B2720DVZ with a resolution of 2 MP.
TD "Leader-SB" presents to your attention a new IP video camera BEWARD B2250 with a resolution of 2 MP (1920x1080).
Every year, the Russian security systems market is growing with brands from the Asian region. The All-over-IP forum is clear evidence of this.
Hikvision expands its DarkFighter range of ultra-low sensitivity surveillance cameras. We are talking about a new product in the PTZ camera segment: DS-2DF8223I-AEL.
TH "Leader-SB" announces the availability of a new professional IP video camera BEWARD B2720RVZ.
TD "Leader-SB" announces the availability of new IP video cameras eVidence Apix - Bullet / E2 36 and Apix - Dome / M3 LED AF 309 with resolution 2 MP And 3 MP, respectively. At the same time, in resolution Full HD both video cameras broadcast video in real time. The new items are equipped with infrared illumination with a range of up to 25 meters.
The 7th International All-over-IP Forum 2014 traditionally brought together well-known world brands and bright technology premieres, eminent industry experts and promising business newcomers under one roof.
At this event, connections are established and contracts are concluded, new technologies are presented and the vector of development for the near future is determined.
The TANTOS line of IP cameras presented by Satro-Paladin has been expanded with three professional models.
TD "Leader-SB" announces the availability of a new compact dome IP video camera Infinity SRD-2000AS 28 in a durable vandal-proof housing. It can be used both indoors and outdoors: the video camera remains operational at temperatures up to -40ºС.
TD "Leader-SB" announces the availability of a new miniature IP video camera Microdigital MDC-i3290F resolution 2 Megapixels, intended for indoor use. The camera broadcasts video in maximum resolution 1920x1080 points in real time (frequency 30 fps).
The range of network cameras for indoor video surveillance has been expanded with a new modification of the IP camera RVi-IPC32MS - now with a lens 6 mm. The video camera is the optimal solution for video monitoring of extended areas, for example, aisles between shelves in supermarkets, warehouses, and corridors.
TB Project Company, the official dealer of Panasonic equipment, offers the use of new box-mounted network cameras - HD model WV-SPN611 and WV-SPN631 with Full HD resolution - at facilities with high security requirements. Both new products have a built-in motion detector, support 4-stream data transmission, and are equipped with additional modules if necessary.
TD "Leader-SB" presents to your attention the new IP video cameras Microdigital MDC-i8290VTD-H and MDC-i6290VTD-24H. New dome and box cameras broadcast video over the network in high resolution 1920x1080. The high resolution of video cameras allows you to get a clear image on the monitors of a video surveillance system. At the same time, network cameras cover a space several times larger than analog cameras.
TD "Leader-SB" presents to your attention the new IP video cameras Sunkwang SK-NM20 and Sunkwang SK-NU20. New items are 2 Megapixel cameras, in dome and miniature cylindrical housings, respectively. Resolution image 1920x1080 points is broadcast over the network in real time.
Arecont Vision has made several significant improvements to its popular all-in-one MegaDome 2 series of megapixel day/night cameras equipped with Stellar(Spatio Temporal Low Light Architecture), used in low light conditions, offline memory option up to 32 GB using SDHC cards; function Corridorview, allowing you to rotate the image 90 degrees for a better view in the halls and corridors; as well as advanced image scaling capabilities across multiple resolutions to better match system throughput and storage requirements.
The Amicom company presents a new IP camera Beward B2710DM, designed for security video surveillance at facilities equipped with external lighting. She performs simultaneous H.264/MJPEG encoding, generates and transmits streams over the network in maximum resolution 1920x1080 with frame rate up to 25 fps. The image is distinguished by natural color rendition, high quality and detail at any lighting level.
TB Project Company, an official partner of Samsung, announces the start of sales of new 2-megapixel high-speed PTZ cameras SNP-6201P and SNP-6201HP, which generate a video stream with a maximum resolution of 2010x1108. Both new products support multi-streaming with a maximum frame rate of 30 fps, use an analytical motion detector and have a rotation speed of 500°/sec.
TD "Leader-SB" presents to your attention the new IP video cameras HikVision DS-2CD4012FWD-A, DS-2CD4024F-A and DS-2CD4032FWD-A. Each box camera is a modern device with a set of effective and extremely useful and convenient functions. They not only transmit data in three streams, but also provide high image quality in the dark.
“TB Project Company”, as an official dealer of TM Panasonic, announces the release of two new models of vandal-proof IP video cameras - WV-SFV631L and WV-SFV611L, which are capable of high-quality video surveillance in HD format even at night (IR illumination).
The new Dinion IP 4000 and Dinion IP 5000 cameras from Bosch Security Systems are designed to meet different customer requirements. Beneath the beautiful aesthetic design of network cameras are the latest in video surveillance technology.
TB Project Company, as an official dealer for the sale and installation of EverFocus brand equipment in Russia, presents four new PoE switches. The new products ES0812-31, ES0802-4, ES1625-31 and ES2426-31 are intended for building IP video surveillance with 4 or more IP cameras. Each model supports Power over Ethernet IEEE 802.3at (PoE+) technology and is housed in a metal case.
Vandal-proof 2-megapixel Full HD camera SNV-6012M based on the WiseNetIII chipset is a new development by Samsung Techwin. The camera is great for use on trains, buses and other forms of public transport.
Vivotek, presented among the winners of the GIT Security Award 2013, beat out the other 10 candidates and took 2nd place in video surveillance category C. Vivotek was also the only award-winning supplier developing a unique technology - panoramic PTZ function in cameras.
Specialists from TD "Leader-SB" present a small-sized IP dome camera eVidence Apix - MiniDome / M2 Lite 28, among the advantages of which are excellent resolution, quality of detail and high clarity.
TD "Leader-SB" presents a 2 MP Smartec STC-IPMX3693A/1 video camera based on a 1/2.7" OmniVision CMOS sensor. The new generation of Smartec IP video cameras based on the DaVinci processor supports a range of video analytics algorithms from VCA Technology (UK). Streaming The video is recognized directly in the camera using special software.
Hikvision is launching a new series of network cameras with Super low-light technology, increasing sensitivity in very dark conditions.
The convenience and reliability of Stand-Alone recording devices has made them especially popular among installers and users. They are easy to install, housed in a standard case, and the underlying Linux OS is extremely stable. And the new Expert IP video recorders are just one of them. It is represented by four models at once: a 4-channel device ERD-N0404-L, an 8-channel device ERD-N0808-L, as well as two 16-channel recorders ERD-N1616 and ERD-N1616-L.
The official distributor of Hikvision in Russia, TB Project Company, continues its review of high-quality new products of the 72 series, which have a shock-resistant and waterproof IP66 class housing. Now the 2-megapixel IP cameras DS-2CD7253F and DS-2CD7255F have come under close attention, each of which has three variations, differing in operating temperature range, specific operation in low-light conditions (IR illumination) and type of power supply. The new products differ from each other mainly in resolution - while the DS-2CD7253F models produce an HD 720p stream, the DS-2CD7255F is available in Full HD recording.
A new product of a non-standard appearance was presented by Polyvision - the outdoor PN7-M2-V12IR has a unique design, is equipped with IR illumination with a long illumination range, but, more importantly, it uses advanced HD-SDI technology, which allows the new product to broadcast high-quality uncompressed Full HD images over coaxial cable standard RG-59, RG-6 and RG-11.
EverFocus has released compact network fixed dome cameras designed for installation even in railway transport.
Asoni has launched a new series of Full HD IP cameras with superior features that provide high image quality and 30 fps recording in Full HD 1080P resolution.
Under the GANZ brand, which is a trademark of the CBC Group, they released a compact 2-megapixel Full HD IP camera with compact dimensions coupled with a high level of picture quality - ZN-M2AF. The new product, presented by IP Dealer, uses dual-variable power supply - PoE or via a 48 V DC adapter, and also meets the requirements of the ONVIF specification, which makes it easy to integrate it into software for video surveillance systems from various manufacturers.
Aver Information Inc has released two rugged 2-megapixel full HD bullet IP cameras, the SF2121H-BHR-50 and SF2121H-BHR-30, designed for use in harsh outdoor environments in regions with long, dark winters.
Schneider Electric has announced the release of its new Spectra 1080 high-definition (HD) positioning dome system, which delivers clear, high-resolution images even in low-light or programmable performance environments. The Spectra line has delivered unparalleled reliability, technology control and image quality for nearly 20 years.
Airlive has introduced the new FE-200CU IP camera, which comes with a fisheye lens with an additional wide viewing angle. Designed for ceiling mounting, this camera is capable of providing a 360-degree field of view, making it ideal for installation in large spaces such as halls, offices, and public garages. The company believes that one FE-200CU can replace three conventional IP cameras, so the new product is a very convenient and flexible solution for the user.
At the Essen show, Grundig recently showcased its expanded range of network, analog and HD-SDI video surveillance products, including 22 and 24-inch 16:9 LED monitors.
The IPD-2220ES is a 2MP 1080P HD IP camera with iMEGAPRO II band, designed for indoor installation. The device is equipped with a lens with a focal length of 4.3 mm, and the camera itself generates and transmits HD video at a frequency of up to 30 frames per second. Its size is only 105 mm in diameter, so the camera is suitable for small and compact HD network solutions.
HD-SDI solutions from Expert have become even more attractive, thanks to the start of deliveries of three 2 MP cameras in the price category of 10 thousand rubles. Reducing the cost of the product was made possible by using bodies already on the market and equipping the cameras with lenses with a fixed focal length of 3.6 mm.
California-based ISD, a renowned provider of IP video surveillance products, has announced the release of its new network cameras that provide flexible and secure video storage.
Megapixel solutions provider Surveon recently announced three new 2MP cameras, completing its 15-model HD professional series, which includes economic, professional and advanced cameras for all applications.
Airlive has launched its latest FE-200DM 2MP PoE fisheye IP camera, offering a versatile wide panoramic surveillance solution for many applications.
Compro Technology has released its NC2200 mini dome network camera with a wide viewing angle of 105 degrees. This functional camera is ideal for home, office and small shops.
Official distributors of professional equipment for video surveillance systems DiGiVi present new products in their range - four high-definition HD-SDI video cameras with a 2 MP matrix and highly efficient DSP NextChip: CM3-M2-VFA10 DNR (box camera with built-in vari-lens), CN-M2-VFA10IR DNR ( frost-resistant IR camera), as well as dome CD-M2-VFA10IR DNR and CD1-M2-VFA10 DNR for indoor installation.
The line of bullet cameras is represented by two 2MP models: GCI-K0589T and GCI-K1526T. Visually and in terms of characteristics, the new products are identical, with the exception of the ability of the second camera to transmit a double video stream in real time with resolutions of 1920 x 1080p + 720 x 576.
Everfocus presents its latest product developments, including the new NevioHD series 1.3, 2.0 and 3.0 megapixel cameras.
The Toshiba IK-WB80A IP Camera is a vandal-resistant camera that can withstand adverse weather conditions and vandalism. The metal body of the camera meets the requirements of the international standard IP66. The new product can be used for installation outdoors in any weather.
Beward continues to expand its range of IP cameras. This time the highlight was the 2 MP dome camera B2.920DX for indoor surveillance systems and the frost-resistant B1076FRV with third-generation IR illumination. IP cameras are completely different from each other and have different “stuffing”, but they are the optimal solution for their surveillance environment.
The AVALON company announces the addition of five dome-type video cameras to the Corum IP camera range. The new products are represented by the CS-310, CS-320 and CS-390 series.
Compro Technology has released its latest 2 megapixel network camera, the Compro CS80.
Axis Communications introduces a series of indoor fixed mini dome cameras with HDTV video for covert video surveillance in stores, hotels, schools, banks and offices. The series includes cameras M3004 and M3005 measuring 10 cm x 5 cm. The megapixel M3004 transmits high-quality video with HD resolution (720p), and the 2-megapixel M3005 with Full HD resolution (1080p).
The IP Dealer company announces the release of a completely new line of Grundig IP cameras, including a fixed dome camera, a box model, and an outdoor camera. Key features include: progressive scanning and image processing using a CMOS sensor, dual, triple and quad stream video and intelligent alarms.
Samsung has introduced Full HD PTZ cameras SNP-6200P and SNP-6200HP, designed for use at airports, train stations, stadiums, ports, garages, schools, shops, offices and other sites requiring surveillance. A review of new products was provided by the distributor of Samsung products, TB Project.
Under the DiGiVi brand, represented in all segments of the video surveillance market, there is a line of megapixel high-speed cameras CNSW2-M1-Z28 and CNSW2-M2-Z20, which provide round-the-clock surveillance with a 360° view in any weather.
Considering the increased interest in HD-SDI technology, a new product from the Polyvision brand, specializing in analogue video surveillance, is quite an expected pattern. DEAN and POLISET companies present a case-mounted PM-M2-Z3 with a built-in lens and a resolution of 2 megapixels.
If it is necessary to build an inconspicuous surveillance system, or in conditions of limited space, customers first of all pay attention to miniature video cameras - they are universal, convenient and easy to install. The scope of application of mini cameras is multifaceted - apartments or private houses, office premises, shops and boutiques, shopping centers, supermarkets, etc.
CORUM, one of the leading manufacturers of IP video cameras, presented its next new product - the CS-270-Ix model. The company's constant desire to satisfy the needs of potential clients, respond to their requests and expectations, did not let it down this time either.
IQinVision, the manufacturer of IQeye IP cameras, announces an update to its line of megapixel video cameras. The new products use effective H.264 and MJPEG compression algorithms, a remote focusing system, and data storage has become available in both local and remote storage.
TPG COMCOM announces the start of sales of a new line of professional high-resolution IP cameras - NeoVizusIP. The NeoVizusIP model range is represented by 6 models of various designs (case, street and dome) with a resolution of 2 MP and 3 MP, as well as a universal thermal housing NVH-5120HB with support for PoE power supply.
Beward's range of IP cameras continues to expand. AVALON presents three new products, housed in frost-resistant cases: the fixed N6602 with support for the CamDrive surveillance service, the cylindrical BD4330RV with Full HD resolution, and the vandal-resistant dome BD4370DV with support for real-time mode in Full HD. Support for various image correction modes (WDR, BLC, 3DNR) allows you to install IP cameras in objects with complex and uneven lighting.
The AVALON company announces the expansion of the Beward IP camera range. Two new dome cameras, the BD4330D and BD4370D, as well as the BD4330 body type, were released. Wide functionality and a highly sensitive matrix provide high-quality and clear video images even in conditions of uneven and insufficient lighting. The temperature range of these models provides for indoor installation, with the exception of the BD4330 provided that a thermal casing is used.
The TB Project company presents an overview of four new products - professional high-speed PTZ IP cameras of the Hikvision brand from the DS-2DF1-5xx and DS-2DF1-7xx lines, equipped with a highly sensitive sensor with high resolution (from 1.3 to 3 MP). The new products are of the “Day/Night” type, and representatives of the DS-2DF1-7xx, among other things, are equipped with an IR illuminator for 80 meters.
Camera resolution is the number of horizontal and vertical points from which an image is formed.
In 2018, good quality from a CCTV camera can be safely called FULL-HD 1920x1080 and higher, where 1920 is the number of horizontal pixels, 1080 is the number of vertical pixels. An analogy can be drawn with the quality of videos that you can watch at home on a home theater. The lower the resolution, the worse the video quality will be and vice versa. It can be called a reference. The disadvantage of such video surveillance systems will be the high cost of all its components: video cameras, DVR, hard drive, TV or monitor with 4K support, and the recording will take up much more disk space.
Below is a table to evaluate video quality depending on camera resolution.
| Number of megapixels | CCTV Camera Resolution | Generally accepted standard designation | Description | Our subjective assessment of video image quality | Advantages and disadvantages |
| 0.02Mp | 176x120 | QCIF | CCTV cameras with such low resolution are hopelessly behind the times, but they can still be found at various operating sites. They can detect movement and recognize a person’s figure. | Badly | - Poor detail - Outdated equipment |
| 0.08Mp | 352x240 | CIF | |||
| 0.1Mp | 352x288 | CIF | |||
| 0.2Mp | 704x240 | 2CIF | |||
| 0.4Mp | 704x480 | 4CIF | |||
| 0.4Mp | 704x576 | D1 (420TVL) | |||
| 0.6Mp | 960x576 | 960H | Cameras can still be found on sale; careless sellers are trying to sell them to people who do not understand this issue. The cost is about the same as 1MP. | - Poor detail - Outdated equipment - Cost ~ like 1mp + Can be used as dummies |
|
| 1MP | 1280x720 | 720p | Has average resolution. Suitable for understanding the overall picture of what is happening, who is where. | Average | + Low price + Allows you to control the situation + The recording archive takes up little space on your hard drive compared to higher resolution - Difficulty identifying a stranger |
| 1.3MP | 1280x960 | 960p | 4:3 image format differs from 1MP in its increased vertical viewing angle, which is sometimes very useful. | ||
| Half 2MP | 960x1080 | 1080N | A stripped-down version of 2MP FullHD cameras. The number of horizontal lines is two times less. The quality is better than 1MP, but worse than full-fledged 2MP. | ||
| 2Mp | 1600x1200 | 4:3 image format Why did we include a 2MP video camera in this category? Because these are already old models that are inferior in sharpness and color reproduction to modern 2MP ones. Even modern 1.3MP ones look more worthy than the old models that came to us for review). | - Blurred picture (with samples that came to us) - Unjustifiably high cost of professional models (with samples that came to us) + Allows you to control the situation |
||
| 2.1Mp (usually they say 2Mp) | 1920x1080 | 1080p | Has good resolution. Allows you to identify a person. At large viewing angles it gives good detail and a clear picture. | Fine | + High resolution and good image detail + Human identification and number plate recognition + Good price/quality ratio + No increased requirements for local network bandwidth |
| 3.1 MP | 2048x1536 | ||||
| 4Mp | 2304x1728 | ||||
| 4Mp | 2592x1520 | ||||
| 5Mp | 2560x1920 | ||||
| 5Mp | 2592x1920 | ||||
| 6Mp | 2736x2192 | ||||
| 8.3Mp | 3840×2160 | 4K | Great | + Excellent detail and recognition of even the smallest details of the video image + Ability to use high resolution as digital zoom - Price. Prices for such equipment are usually high - Increased requirements for LAN bandwidth - The recording archive takes up quite a lot of space. |
Using low CIF and D1 resolutions today.
Modern digital IP cameras and DVRs allow you to select the same old CIF and D1 as a sub stream. Why do you need a picture with obviously worse resolution?
Sub stream - an auxiliary stream from a video surveillance camera, with a deliberately low resolution - is used to display video on mobile devices or when displaying images on the screen from several video cameras at once, thereby reducing the load on the local network and on the video recorder processor, which is already busy saving video with maximum quality to your hard drive.
With the help of D1, we can remotely view videos even at low Internet speeds, which you will agree is very convenient.
We can change the parameters of video streams on the DVR in the “Compression” menu item by selecting the desired camera channel.
Surveillance cameras with ultra-high 4k resolutions can support not two streams, but three. This makes it possible to more flexibly set up the broadcast from the camera. For example, the main stream with maximum resolution is broadcast to the operator, the second stream with slightly worse quality is broadcast over the enterprise’s local network, and the third stream in D1 is used for remote viewing via the Internet. Read more about video streams.
Questions, comments and suggestions write to: samohvalov@site
The purpose of this article is to eliminate confusion in the resolution designations of video surveillance cameras and help understand how much memory is needed to record video with a particular resolution.
Image quality designations used in signal standards (IP, HD-TVI, AHD)
Resolution (“resolution” of recording or “frame size” of video) is determined by the number of pixels (dots) when digitizing an image (horizontally and vertically, respectively).
Designation “Mp, Mpx, Mp” (1 Mp; 1.3 Mpx; 2.1 Mp)
MP is the total number of megapixels (millions of dots) obtained by multiplying the number of columns (horizontal dots) by the number of rows (vertical dots). For example, for a 1080p camera: 1920 columns multiplied by 1080 rows and we get 2MP (more precisely, 2.07MP, but usually this is referred to as 2MP or 2.1MP).
Designation "p" (720p, 960p,1080p, 2160p)
Number with symbol "p" corresponds to the total number of lines in this video (the number of points in the frame vertically). For example, a video designated as 720p contains 720 lines of pixels (for a total area of 1.3Mp). A video referred to as 1080p contains 1080 lines of pixels (for a total area of 2.1Mp). Finally, a video referred to as 2160p contains 2160 lines of pixels (for a total area of 8.3Mp).
The icon itself "R" indicates progressive scanning (as opposed to interlaced). Nowadays, almost all video surveillance cameras have progressive scan, so the “p” icon in this sense no longer plays a special meaning.
Designations "H and K" (960H, 2K, 4K)
Designation "H and K" indicates the number of columns (horizontal points), expressed by H - in units, K - in thousands and rounded. For example, a video labeled 4K contains about 4000 columns of pixels. In reality, 4K video contains either 3840 columns or 4096 columns, although in video surveillance it is almost always 3840.
Video quality designations used in outdated analog video surveillance systems (D1, DCIF, 2CIF, CIF, QCIF, 380TVL, 420TVL, 480TVL, 560TVL, 600TVL, 800TVL, 1000TVL) conversion to megapixels and their differences
TVL(television lines) is an interesting unit of measurement determined from test charts during camera testing and denotes the number of vertical lines (visible brightness transitions) in the frame. Essentially, this is the number of pixels horizontally in the frame, multiplied by a factor of 0.65 (to take into account the inevitable loss of clarity during the process of converting and processing the video signal). The vertical resolution in pixels is strictly specified by the number of lines in the television standard (576 in European and 480 in American) and does not change depending on the camera resolution declared by the manufacturer. Therefore, resolutions of more than 420 TVL, transmitted in the usual analogue television standard, can be called not entirely fair, since they provide increased clarity only horizontally.
| TVL (television lines) | Pixels (horizontal x vertical) | Megapixels (Mp, MPx) |
| 380TVL | 640x480 px | 0.3 MP |
| 420TVL | 720x576 px | 0.36 MP |
| honest 480TVL | 800x600px | 0.5 MP |
| honest 560TVL | 933x700 px | 0.65 MP |
| honest 600TVL | 1024x756 px | 0.75 MP |
| honest 800TVL | 1280x960px | 1.23 MP |
| honest 1000TVL | 1600x1200 px | 1.92 MP |
D1— “full” frame, image size 704x576— allows you to get maximum image quality when using a high-resolution analog camera (more than 540 TVL)
DCIF— “extended” frame, image size 528x384. Compared to D1, it is characterized by a 30% loss of original information.
2CIF— “long” frame, image size 704x288— one image field is used, but with maximum horizontal resolution. It is characterized by good horizontal resolution and allows you to reduce the volume of the created archive by almost 2 times compared to D1. However, the low vertical resolution does not allow video recording in narrow surveillance areas (surveillance along a corridor). Mainly used for panoramic viewing.
CIF- “quarter” frame, image size 352x288— truncated field. Typically used only when observing over a network with limited channel capacity, as well as recording the general situation with small viewing areas (from 3 to 5 m). At the same time, the small volume of the video stream allows you to dramatically increase the duration of the archive.
QCIF— image size 176x144— used only for network monitoring over low-speed communication channels with a flow of up to 56-128 Kbps. All that can be said about the quality of the image is that “some kind of movement is visible,” and nothing more.
List of all (main and intermediate) video image formats, indicating the horizontal and vertical frame size in pixels and the total image area in kilopixels and megapixels
| Name of video format (standard) | Number of points displayed in the frame | Image proportions (frame aspect ratio) | Image size in kilopixels (thousands of pixels) and megapixels (millions of pixels) |
|---|---|---|---|
| QVGA | 320×240 | 4:3 | 76.8 kpix |
| SIF (MPEG1 SIF) | 352×240 | 22:15 | 84.48 kpx |
| CIF (MPEG1 VideoCD) | 352×288 | 11:9 | 101.37 kpix |
| WQVGA | 400×240 | 5:3 | 96 kpx |
| 480×576 | 5:6 | 276.48 kpix | |
| HVGA | 640×240 | 8:3 | 153.6 kpix |
| HVGA | 320×480 | 2:3 | 153.6 kpix |
| nHD | 640×360 | 16:9 | 230.4 kpix |
| VGA | 640×480 | 4:3 | 307.2 kpix |
| W.V.G.A. | 800×480 | 5:3 | 384 kpix |
| SVGA | 800×600 | 4:3 | 480 kpix |
| FWVGA | 848×480 | 16:9 | 409.92 kpx |
| qHD | 960x540 | 16:9 | 518.4 kpix |
| WSVGA | 1024×600 | 128:75 | 614.4 kpix |
| XGA | 1024×768 | 4:3 | 786.432 kpix |
| XGA+ | 1152×864 | 4:3 | 995.3 kpix |
| WXVGA | 1200×600 | 2:1 | 720 kpix |
| HD 720p | 1280×720 | 16:9 | 921.6 kpix |
| WXGA | 1280×768 | 5:3 | 983.04 kpix |
| SXGA | 1280×1024 | 5:4 | 1.31 megapixels |
| WXGA+ | 1440×900 | 8:5 | 1,296 megapixels |
| SXGA+ | 1400×1050 | 4:3 | 1.47 megapixels |
| XJXGA | 1536×960 | 8:5 | 1,475 megapixels |
| WSXGA(?) | 1536×1024 | 3:2 | 1.57 megapixels |
| WXGA++ | 1600×900 | 16:9 | 1.44 megapixels |
| WSXGA | 1600×1024 | 25:16 | 1.64 megapixels |
| UXGA | 1600×1200 | 4:3 | 1.92 megapixels |
| WSXGA+ | 1680×1050 | 8:5 | 1.76 megapixels |
| Full HD 1080p | 1920×1080 | 16:9 | 2.07 megapixels |
| WUXGA | 1920×1200 | 8:5 | 2.3 megapixels |
| 2K | 2048x1080 | 256:135 | 2.2 megapixels |
| QWXGA | 2048×1152 | 16:9 | 2.36 megapixels |
| QXGA | 2048×1536 | 4:3 | 3.15 megapixels |
| WQXGA | 2560×1440 | 16:9 | 3.68 megapixels |
| WQXGA | 2560×1600 | 8:5 | 4.09 megapixels |
| QSXGA | 2560×2048 | 5:4 | 5.24 megapixels |
| WQXGA | 3200x1800 | 16:9 | 5.76 megapixels |
| WQSXGA | 3200×2048 | 25:16 | 6.55 megapixels |
| QUXGA | 3200×2400 | 4:3 | 7.68 megapixels |
| QHD | 3440×1440 | 21:9 | 4.95 megapixels |
| WQUXGA | 3840×2400 | 8:5 | 9.2 megapixels |
| Ultra HD | 3840×2160 | 16:9 | 8.3 megapixels |
| 4K | 4096×2160 | 256:135 | 8.8 megapixels |
| 4128x2322 | 16:9 | 9.6 megapixels | |
| 4128x3096 | 4:3 | 12.78 megapixels | |
| HSXGA | 5120×4096 | 5:4 | 20.97 megapixels |
| WHSXGA | 6400×4096 | 25:16 | 26.2 megapixels |
| HUXGA | 6400×4800 | 4:3 | 30.72 megapixels |
| Super Hi-Vision | 7680×4320 | 16:9 | 33.17 megapixels |
| WHUXGA | 7680×4800 | 8:5 | 36.86 megapixels |
What size hard drive is needed for a DVR?
Based on the table below, you can calculate how many gigabytes per hour All cameras will be transmitted to the DVR.
Table of volume (GB) per hour of recording of CCTV cameras for H.264 codec at resolution D1, 1Mp (1280*720), 2Mp (1920*1080), 3Mp(2048*1536), 5M(2560x1920) at frame rate 8, 12, 25 fps and varying traffic intensity.
To reduce the amount of stored video information, DVRs use various compression algorithms.
The main advantage of the algorithm H.264 is inter-frame compression, in which for each next frame its differences from the previous one are determined, and only these differences are stored in the archive after compression. When the algorithm operates, reference frames (I-frames), which are a compressed full image, are periodically saved in the archive, and then for 25-100 frames only changes, called intermediate frames (P- and B-frames), are saved. This compression method allows you to obtain high image quality with a small volume, but requires more calculations than standard compression MJPEG.
When using the algorithm MJPEG Each frame is compressed, regardless of whether it differs from the previous one. Therefore, the only way to reduce the amount of stored data is to increase compression and thereby reduce the recording quality. This method is used only in simple standalone video recorders that do not require long-term storage of information.
Another advantage of the algorithm H.264 is its ability to operate in constant bit rate (CBR) mode, in which the degree of compression of video information changes dynamically and thus clearly records the volume of the created archive in one second. This feature of the algorithm makes it possible to unambiguously determine the maximum archive volume per hour of continuous system operation, as well as the necessary network traffic for remote access.
– this is an image unit, that is, minimal points with a certain shade, from which a raster image of a photograph or video frame is composed. The more dots and the smaller their size, the better the image the eyes see due to the inability to separate very small dots from one another.
Using the concept of megakipsel
There are several different ways to characterize the number of pixels that make up any image. Firstly, this is the size of the picture in the number of pixels, that is, how many pixels fit in the width and length of the picture, for example 1920X1200. Secondly, it is the number of pixels that fit on one square inch. You can find this parameter in the characteristics of smartphone or monitor screens, for example 260 dpi (dot per inch). Thirdly, these are the same megapixels that determine the total number of pixels in the entire image.Megapixels are obtained by multiplying the number of pixels by the width and length of the image. For example, for a picture with a resolution of 1920X1200, you can calculate approximately 2.3 megapixels. Much or little depends mainly on the size in centimeters or inches of the picture when a person views it.
In the context of photo and video equipment, megapixels determine the dimension of the matrix. As a result, this will determine the maximum size of the resulting image, at which the pixel size will be small enough and will not be noticeable individually, making up a single image with neighboring pixels.
What does megapixel mean?
What megapixels can characterize is the size of the image in bytes, kilobytes and megabytes, and accordingly you can judge the space on a memory card or hard drive that the image will occupy. As a result, you can calculate the maximum number of images themselves that will fit on the media.The size of the resulting photo is also affected by the file format in which the image is saved. The format determines the degree of compression and archiving, when not every pixel is saved individually.
To understand the optimal number of megapixels, for example when choosing a camera, you can make simple calculations. If the bulk of photographs, for example, will be printed on A4 sheets with optimal print quality of 300dpi, then it is easy to calculate the number of megapixels in the picture that this will require. The A4 size is 8.3x11.7 inches, that is, 2490x3510 pixels or approximately 8.7 megapixels with the selected print quality.
Igor is going to install an AHD video surveillance system in his grocery store. He knows that the system usually contains several megapixel cameras and one recorder, but he cannot decide whether to get 1.3 megapixel or 2 megapixel cameras. Semyon is a sales representative for security and video surveillance systems. His company offers a wide range of megapixel security cameras with different resolutions. He usually recommends a high-definition video surveillance system to his clients, simply because he knows its features better, and it is more profitable for the seller. You probably have similar questions about choosing CCTV cameras. In this article, we are going to provide you with comprehensive information for choosing CCTV cameras.
1. What is a high definition CCTV camera?
All image formats with a resolution of 1280x720 or higher are considered high definition (HD). In the modern world of video surveillance, there are two directions: analog and digital. Accordingly, there are analog and network (IP) HD cameras. 960H (NTSC: 960x480) resolution is not HD. Current HD resolution formats include: 1.0 megapixel (720p), 1.3 megapixel (960p), 2 megapixel (1080p), 3 megapixel, 5 megapixel, 8 megapixel (4K UHD), 12 megapixel, 33 megapixel (8K UHD) .
As a rule, network HD cameras provide slightly better image quality than analog HD cameras of the same resolution (for example, 720p).
Recently, one of our clients reported that they had installed a video surveillance system on 720p AHD cameras (the manufacturer stated 1000TVL) and were dissatisfied: the image quality of these 720p AHD cameras turned out to be even worse than that of the old 960H cameras. We will tell you why this happened in the fourth part of the article.
2. The benefits of high definition
Compared to standard definition, HD technology has increased image detail. The image quality is further enhanced by various enhancement technologies such as Progressive Scan, 2D/3D Dynamic Noise Reduction, Wide Dynamic Range (WDR), etc. In short, HD provides superior picture quality. A typical 960H analogue camera provides a resolution of 960H/WD1, which is 960x480 pixels (for NTSC) or 960x576 pixels (for PAL). Once the signal is digitized in a DVR or hybrid video recorder, the image will consist of a maximum of 552960 pixels (0.5 megapixels).
A high definition camera can cover a much wider area than a regular camera. Let's take for example a 12-megapixel panoramic camera with a fisheye lens with a 360-degree viewing angle. With a built-in 12MP image sensor and ePTZ (virtual pan/tilt/zoom) and image splitting capabilities, it can replace multiple conventional CCTV cameras at once, significantly reducing installation costs and subsequent maintenance fees.
Excellent compatibility is another advantage of HD. Whether you're shopping online or visiting your local electronics store, you've noticed that all TVs, camcorders, and digital cameras support HD 1080p (FullHD). Accordingly, if you want this equipment to work with your CCTV system, you should choose a CCTV system that supports 1080p. Also we understand that 4K is the current trend, it is logical to expect that 4K UHD CCTV system will become popular in the future.
3. Various HD resolution formats
High-definition IP cameras occupy a central place in video surveillance systems. They can provide higher quality video with greater image detail and wider coverage than standard definition cameras. You can choose the right network (IP) camera format to suit your requirements. For example, for facial recognition or license plate recognition applications, choose megapixel network cameras with a resolution of 1080p or more. To find out the resolution of a particular HD format, refer to the following table:
| Format | Resolution (pixels) | Aspect Ratio | Scan |
| 1MP/720P | 1280x720 | 16:9 | Progressive |
| SXGA/960P | 1280x960 | 4:3 | Progressive |
| 1.3MP | 1280x1024 | 5:4 | Progressive |
| 2MP/1080P | 1920x1080 | 16:9 | Progressive |
| 2.3MP | 1920x1200 | 16:10 | Progressive |
| 3MP | 2048x1536 | 4:3 | Progressive |
| 4MP | 2592x1520 | 16:9 | Progressive |
| 5MP | 2560x1960 | 4:3 | Progressive |
| 6MP | 3072x2048 | 3:2 | Progressive |
| 4K Ultra HD | 3840x2160 | 16:9 | Progressive |
| 8K Ultra HD | 7680x4320 | 16:9 | Progressive |
4 Selecting an HD CCTV camera
Besides image resolution, what else should you consider when choosing HD network cameras? Here we will share information on how to choose the right HD cameras from an installer's point of view.
Low illumination
As you know, a CCTV camera works differently than a consumer camera - a CCTV camera cannot use flash when capturing images/videos. If a camera has poor low-light performance, its use is limited. When working in low light conditions, such a camera will go blind, despite its very high resolution.
High resolution is a double-edged sword: the sensor manufacturer does not have the ability to endlessly increase the crystal area, so increasing the resolution is associated with a decrease in the size of the pixel itself for the same dimensions of the sensor crystal (usually 1/3""), so there is less light per pixel , which leads to a decrease in sensitivity as the resolution (megapixels) increases.
Currently, the optimal value for most areas of video surveillance is a resolution of 2 MP (1080p/FullHD); it is for this resolution that most sensors from the Low Illumination series exist.
Video delay (Time lag)
All network (IP) security cameras have some latency compared to real time, and the cost or quality of the camera does not determine the amount of this latency. For example, for the same 720p image, the video latency time for some cameras is 0.1s, and for some other network cameras this time can be 0.4s, and even more than 0.7s. Why is the video delay time different? Unlike an analog camera, a network camera compresses the video (a process called encoding), and user devices decode the video for display, resulting in video latency. Typically, the lower the latency, the better the image processor's capabilities. This means choosing a network camera with the lowest video latency.
Heat dissipation
When a security camera is running, it generates heat, especially when the infrared light is turned on at night. This rule applies to any CCTV camera. Excessive heat generation increases the likelihood of overheating and, as a result, damage to the camera. When choosing megapixel cameras, pay attention to:
Choose a camera with lower power consumption. Low power consumption means the camera saves energy and generates less heat. The downside: in winter, a camera with low heat generation may freeze (usually this concerns the IR filter), and low consumption means that a weak IR illumination is installed, this should also be taken into account.
Consider using a camera with improved low-light performance (no infrared or other artificial lighting). Such a low-light camera can capture images even in darkness (>0.009 - 0.001 lux).
Choose a camera with a body that has good heat dissipation. A metal case is preferable to a plastic one. To ensure reliable performance, the Elite Series network cameras adopt a finned heatsink on the body to maximize heat dissipation, which greatly helps the camera in ensuring reliable performance.
Price
""High price = high quality"" - in most cases this rule is true. Based on research reports, consumers often believe that a higher price for a product indicates a higher level of quality. But price is not the only indicator of good quality, especially when purchasing “Made in China” products. I have been working in the CCTV industry for over five years and I can attest that end users, integrators and installers can get high quality products from Chinese suppliers/manufacturers at a very competitive price. High-quality cameras may have unique body designs and offer special features not found in other products.
Technical support
In conclusion, network cameras should also have good technical support. Although IP cameras are becoming increasingly easier to set up and operate, end users may encounter technical issues that require outside assistance. If you encounter such a problem, you will receive technical support from us within 1-2 days, this is quite acceptable. It is because of this that I personally do not recommend buying CCTV cameras on Aliexpress, since in the future you are unlikely to receive technical support from sellers and prompt support.
Megapixels vs TV lines
| Device type | TVL/Megapixels | Final resolution NTSC | Final resolution PAL | Megapixels NTSC | Megapixels PAL |
| Analog matrices SONY CCD | 480TVL | 510H*492V | 500H*582V | ≈0.25 megapixels | ≈0.29 megapixels |
| 600TVL | 768*494 | 752*582 | ≈0.38 megapixels | ≈0.43 megapixels | |
| 700TVL | 976*494 | 976*582 | ≈0.48 megapixels | ≈0.56 megapixels | |
| Analog matrices SONY CMOS | 1000TVL | 1280*720 | ≈0.92 megapixels | ||
| IP cameras and IP recorders | 720P | 1280*720 | ≈0.92 megapixels | ||
| 960P | 1280*960 | ≈1.23 megapixels | |||
| 1080P | 1920*1080 | ≈2.07 megapixels | |||
| 3MP | 2048×1536 | ≈3.14 megapixels | |||
| 5MP | 2592×1920 | ≈4.97 megapixels | |||
| Analog recorders | QCIF | 176*144 | ≈0.026 megapixels | ||
| CIF | 352*288 | ≈0.1 megapixels | |||
| HD1 | 576*288 | ≈0.16 megapixels | |||
| D1(FCIF) | 704*576 | ≈0.4 megapixels | |||
| 960H | 928*576 | ≈0.53 megapixels | |||
