H.265+ Takes Video Surveillance to the 4K Era

30 Mar 2017

Hikvision’s H.265+ codec optimizes the H.265/HEVC encoding technology, meeting its compression standards and operating with the vast majority of hardware and software designed to employ H.265. With H.265+, video quality remains virtually the same as that of H.265/HEVC while radically reducing transmission bandwidth and data storage capacity requirements. The H.265+ codec will serve to widen the application of ultra-HD resolutions in video surveillance, such as 8 MP and 12 MP devices. Wherever applied, this new codec will cut storage costs, make the fullest use of surveillance video investments, and broaden the use of 4K and ultra-HD security video.

Recently, ultra-high-definition surveillance cameras introduced 4K resolution to the security industry. However, 4K resolution has yet to achieve wide application, mainly because of the tremendous bandwidth and data storage requirements. Limiting the bitrate of an ultra-HD video feed while retaining a high-quality, 4K-image remains the biggest problem—a problem whose solution will decide the fate of ultra-HD surveillance video. Video transmission balances image quality, transmission capabilities, and data requirements—i.e., how much information and how it’s handled. Therefore, image transmission optimization lies in advancements in video compression technology.
Until now, H.264 compression has been the industry-standard codec. When the H.264 codec found wide use, Hikvision developed its own compatible algorithm to go the next step, calling it “H.264+”. The next iteration in this codec lineage—H.265—presently stands at the cusp of widespread adoption. And once again, Hikvision has already pushed this compression technology to a new level. H.265+ employs an intelligent algorithm whose encoding technology stems from the H.265/High Efficiency Video Coding (HEVC) standard. 

H.265+ optimizes the existing codec most strikingly where specific criteria are met in a surveillance video feed. This criteria consists of: 1.) a stable background where information rarely changes; 2.) a primary focus on the objects  moving across that stagnant scene; 3.) a substantial period of time where a scene’s moving objects appear only occasionally; and 4.) 24-hour non-stop surveillance where visual noise has a relatively large impact on image quality. In this type of environment, field-tests show H.265+ radically decreases the required bitrate of the ultra-high-definition surveillance video by up to 67% over H.265, thereby reducing required bandwidth and storage. Bitrate reduction means cost reduction for consumers, as well as increased efficiency, stability, and reliability of all the hardware in a given surveillance system.

Three Keys: Encoding, Noise, and Bitrates
With ultra-HD resolutions and higher efficiency transmission as the two primary objectives, H.265+ improves the compression ratio based on three key technologies: 1.) predictive encoding technology based on a background or reference frame, 2.) digital noise suppression technology, and 3.) long-term bitrate control technology.

Predictive Encoding
Predictive encoding can be divided into “Inter-frame prediction,” creating a prediction model from one or more previously encoded video frames, and “Intra-frame prediction,” where the samples of a macroblock (processing unit) are predicted by using only information of previously transmitted macroblocks of the same frame. With inter-frame prediction, bitrate can be reduced by compressing only the difference in rates between a reference frame and any other frame. This reference frame—usually the background of a scene—will contain few if any moving objects. Fortunately, in most security surveillance, the background remains stagnant.

Noise Suppression

In order to guarantee a high image quality of moving objects, the encoding module also encodes the visual noise in the scene. However, using the predictive encoding methods mentioned above, the H.265+ intelligent analysis algorithm distinguishes between the background image and moving objects so that each can be encoded with different encoding strategies. A background image is encoded with high compression in order to suppress noise and applies data to new or moving objects. Since data transmission is limited, the overall bitrate dips substantially when compared against conventional video compression.

Long-Term Bitrate Control
Hikvision has introduced a concept it calls “Long-Term Average Bitrate” to make full use of a data from a video feed. Long-Term Average Bitrate calculates the rates over a specified time period (usually 24 hours). With the average bitrate control, the camera can assign higher bitrates to busier hours while reducing it during idle hours—e.g., midnight to 6 AM outdoors, or 8 PM to 7 AM in an office. In the case of a constant bitrate mode for H.265 encoding, the bitrate varies slightly but stays near the predefined maximum bitrate value. Using H.265+, average bitrate can be as low as half of the maximum bitrate. Image quality can still be optimized since the H.265+ technology makes full use of every bit. In variable bitrate mode, the instant bitrate varies according to a scene’s activity, while the image quality remains steady.

Real-World 24-Hour Testing
A bitrate-reduction test was conducted, based on cameras featuring 1080p resolution at 25 fps. The scene was a small café under video surveillance feed for a 24-hour period.

Instant Bitrate Comparison between Two Scenes

Testing the same scene—a busy café—at different times of day, showed that the rate difference between codecs appears less significant as the number of moving objects in the scene increases. Nevertheless, the numbers are still remarkable. The average bitrate between H.264 and Hikvision’s H.265+ decreased by a substantial 83%. The rate between the standard H.265 and Hikvision’s H.265+ codec decreased by 67%—a smaller difference, but nonetheless significant when applied to real-world surveillance systems.

24-Hour File Size in Different Scenes
In discreet, 24-hour file size comparison of two different scenes, drastic reductions were plain to see. Scene one was a café, where the H.264 codec yielded an average of 22.7 GB, and H.265 yielded 11.8 GB, on average. Remarkably, Hikvision’s H.265+ averaged only 3.9 GB. Scene two was a traffic Intersection. Here, the 24-hour file size comparison yielded similar results. H.264 averaged 36.4 GB, H.265 averaged 21.1 GB, and H.265+ averaged the lowest bitrate again at only 7.5 GB.
Here are in those numbers in percentages. In the café monitoring scenario, the rate of the 24-hour file size between H.265 and Hikvision H.265+ decreased by 66.4%, while the rate between H.264 and Hikvision H.265+ decreased by a substantial 82.5%. For the traffic intersection monitoring, the rate of the 24-hour file size between H.265 and Hikvision H.265+ decreased by 64.5%, while the rate between H.264 and Hikvision H.265+ decreased by 79.4%.

Benefits: Improved Bandwidth, Storage, Imaging, & VCAs
First, H.265+ makes the best use of every bit, so HD and ultra-HD resolutions looks as clear, sharp, and focused as possible. Also, as H.265+ improves image transmission, target objects will have more pixels so the use of VCAs will arguably become more precise, more accurate.  Next, a network utilizing H.265+ has more bandwidth available at any given time. More bandwidth means better system functioning all around. In real terms, on a 20 Mb broadband network, the H.264 codec can accommodate five cameras. H.265 doubles that, carrying the load of 10 cameras. But H.265+ doubles even that, accommodating 20 or more cameras on the single network. Therefore, H.265+ will be the best choice for users expanding an installation and moving to 4K at the same time.
What’s more, users reduce costs and other resources involved in storing video-feed data. Here's another scenario: when eight 2-Megapixel cameras are connected to a network, and a storage device holds five 5-Terrabyte hard drives, recording capacities vary significantly. A system running on H.264 will hit its storage ceiling in about two weeks. H.265 will do a bit better, filling up after about one month. Hikvision’s H.265+, however, will continue recording—up to about two full months. When considering these results on a monthly or annual basis for budgeting expenses and hardware allocations, H.265+ reduces expenditures all around. While the jump to H.265+ might be slow initially, the benefits will prove advantageous far into the future. 

Applications are Everywhere

The applications here extend at least as wide as those of any previous codec. However, under conditions like an unstable network or limited bandwidth, or where customers are required to store data for extended periods of time, H.265+ will be most profoundly effective. Furthermore, this codec can be integrated into comprehensive security solutions for specific functions—4K, Panoramic, and explosion-proof cameras, ultra-low light products, and anti-corrosion products are a few examples.
As with any new technological improvement, industry-wide upgrading from current or legacy standards requires investing time and resources. For H.265, migration is accelerating, primarily in newly designed systems since upgrading existing H.264 systems only increases expenditure. H.265 will become more desirable to system integrators and end-users since its decreased bitrates yield high-definition resolutions and images come through more clearly. Added to that, target objects can be isolated and enlarged with more clarity, and more accurate VCAs can be employed.

4 The Square
Stockley Park
UB11 1ET
Uxbridge, Middlesex
United Kingdom

Hikvision launches professional monitor range
Product News

Hikvision launches professional monitor range

Especially designed for security surveillance and control centre environments, Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, has launched a new range of professional LED-backlit TFT LCD monitors.

Read more

New Door Phone System Brings Leading Surveillance Technology to the Doorstep
Product News

New Door Phone System Brings Leading Surveillance Technology to the Doorstep

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, has launched an innovative IP Video Door Phone System solution in the next stage of its mission to offer a complete security solution to residents and bu...

Read more

Hikvision Introduces New Traffic Monitoring Cameras
Product News

Hikvision Introduces New Traffic Monitoring Cameras

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, announces its new Automatic Number Plate Recognition (ANPR) solution, which offers vehicle recognition technology embedded into cameras. This gives users...

Read more

Feature article - Expanding into the non-CCTV market
Product News

Feature article - Expanding into the non-CCTV market

Hikvision’s position in the surveillance industry market is clear - it is the world’s leading supplier of video surveillance solutions. Up until last year, the company’s presence in Europe has been mainly using traditional distributor channels. This is...

Read more

Sturdy thermal camera for harsh environments
Product News

Sturdy thermal camera for harsh environments

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, releases its explosion-proof Thermal Network Bullet camera, which is equipped with explosion-proof ‘inox’ enclosure made of stainless steel, protecting it ...

Read more

Hikvision and SGS sign memorandum for joint lab collaboration
Product News

Hikvision and SGS sign memorandum for joint lab collaboration

Hikvision, the world’s leading supplier of video surveillance products and solutions, and SGS, the world's leading inspection, verification, testing and certification company, announced they have signed a memorandum agreement for joint laboratory col...

Read more

Hikvision recorder transports Cologne based museum into HD future
Product News

Hikvision recorder transports Cologne based museum into HD future

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, supplied digital video monitoring technology solutions to the Museum for East Asian Art in Cologne – thus paving the way for entry into the age of HD...

Read more

Feature article: Thermal technology – visualising without seeing
Product News

Feature article: Thermal technology – visualising without seeing

The science of infra-red detecting has many applications, not least in the security industry. Where regular cameras cannot see – for instance in very low light, fog or other bad weather conditions or smoke-filled areas – thermal technology can pr...

Read more

Hikvision and Cisco Hold Joint Meeting on Cybersecurity Collaboration in Hangzhou
Product News

Hikvision and Cisco Hold Joint Meeting on Cybersecurity Collaboration in Hangzhou

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, together with Cisco, the worldwide leader in IT and networking, held a joint meeting on cybersecurity collaboration on April 26, 2017 in Hangzhou, Ch...

Read more

Hikvision launches Access Control solution in Europe
Product News

Hikvision launches Access Control solution in Europe

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, releases its new Access Control solution to the European market. This gives customers a safe environment through secured access, with a complete, end...

Read more

Hikvision Introduces Four New Anti-corrosion Cameras
Product News

Hikvision Introduces Four New Anti-corrosion Cameras

Hikvision, the world’s leading supplier of video-surveillance products and solutions, has introduced four new anti-corrosion network cameras. Their robust housing and the proven Dark Fighter technology make the cameras ideal for use under unfavou...

Read more

Hikvision introduces iDS-2CD6810F/C Dual-Lens IP camera for people counting
Product News

Hikvision introduces iDS-2CD6810F/C Dual-Lens IP camera for people counting

The Hikvision iDS-2CD6810F/C is equipped with two lenses, making it even more accurate than its predecessor, which was already highly successful in mapping the number of visitors with only one lens. 

The dual lens enables the ca...

Read more

Hikvision Introduces Turbo HD 4.0 Solution
Product News

Hikvision Introduces Turbo HD 4.0 Solution

Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, announces that its new Turbo HD 4.0 range, which boasts ultra-low light performance and the ability to send power as well as 8MP video images over co...

Read more

New Hikvison 3E Series PoE Switches deliver power, speed & distance
Product News

New Hikvison 3E Series PoE Switches deliver power, speed & distance

Offering longer distance PoE power and data transmission over Cat5e UTP cable, Hikvision, the world’s leading supplier of innovative video surveillance products and solutions, has released a new range of 3E Series PoE Switches.

Read more

Enhancing the security at Southgate Shopping Centre with Hikvision
Case Study

Enhancing the security at Southgate Shopping Centre with Hikvision

Read more

Case study: The Tank Museum
Case Study

Case study: The Tank Museum

Read more

DVS Ltd open Hikvision authorised training academy
Product News

DVS Ltd open Hikvision authorised training academy

DVS Ltd the UK’s fastest growing distributor of security products have opened Delivering Knowledge Training, the only accredited company to offer HCSA (HIKVision Certification Security Academy) certification outside of HIKVision.

Read more

Hikvision's SMART IP Camera Range integrated with XProtect® VMS from Milestone Systems
Other News

Hikvision's SMART IP Camera Range integrated with XProtect® VMS from Milestone Systems

Hikvision announces the full integration of its SMART IP camera range with XProtect® VMS (Video Management Software) from Milestone Systems with the release of XProtect Device Pack 7.3.

Read more

Hikvision Helps London Borough Build Extensive CCTV Solution
Case Study

Hikvision Helps London Borough Build Extensive CCTV Solution

Council Chooses Hikvision’s Robust Brand And High Quality Cameras

Read more

Security 50 Recognises Hikvision Once Again
Other News

Security 50 Recognises Hikvision Once Again

Hikvision Rise To #4 With 35.6% In Total Sales Revenue

Read more

Hikvision Introduces Two Smart PTZ Dome Cameras
Product News

Hikvision Introduces Two Smart PTZ Dome Cameras

Hikvision recently introduced two smart analog PTZ domes, allowing users to experience highly-detailed images and insurance against security risks

Read more

Hikvision leads Smart IP camera trend
Other News

Hikvision leads Smart IP camera trend

Hikvision Smart IP cameras are designed to fully meet all professional market requirements for efficient bandwidth and storage utilization, as well as unparalleled image quality and customer convenience.

Read more

Hikvision restructures Kuwaiti supermarket security
Case Study

Hikvision restructures Kuwaiti supermarket security

Hikvision helps streamline Kuwaiti supermarket safety and efficiency

Read more

Hikvision secure Türk Telekom infrastructure despite Turkish landscape
Case Study

Hikvision secure Türk Telekom infrastructure despite Turkish landscape

Türk Telekom Group is Turkey's world-class, integrated telecommunication and technology services leader that offers its Turkish customers a complete range of fixed line, mobile, data, and internet services.

Read more

Hikvision and Milestone Systems partnership enhanced
Product News

Hikvision and Milestone Systems partnership enhanced

The partnership between Hikvision and Milestone has recently been strengthened via the complete integration of Hikvision IP video devices and Milestone XProtect video management software.

Read more

Hikvision's PICADIS camera family expanded with new vari-focal models
Product News

Hikvision's PICADIS camera family expanded with new vari-focal models

Hikvision recently introduced two vari-focal models into its PICADIS analog camera family -- the DS-2CE15C2P(N)-VFIR3 720TVL IR Bullet camera and DS-2CE55C2P(N)-VFIR3 720TVL IR Dome camera

Read more

Hikvision introduce new IR HD Mini Domes
Product News

Hikvision introduce new IR HD Mini Domes

Hikvision expands its portfolio of 2-line HD network cameras with the introduction of its first IR mini dome IP camera series: the 1.3-megapixel DS-2CD2512F-I(W)(S) and 3-megapixel DS-2CD2532F-I (W)(S).

Read more

Hikvision introduce new camera line
Product News

Hikvision introduce new camera line

Hikvision HD IR Cube IP Cameras keep homes and businesses safe

Read more

Hikvision products secure Czech security company
Other News

Hikvision products secure Czech security company

Located in Prague, the capital of the Czech Republic, is the new headquarters of Jablotron Alarms, a.s - one of the country's largest security firms. A number of Hikvision products were chosen to protect both Jablotron's reputation and its new building...

Read more

Hikvision introduce 2-line HD network camera series featuring Vari-Focal
Product News

Hikvision introduce 2-line HD network camera series featuring Vari-Focal

Hikvision broaden customer choices with a new camera series

Read more

Hikvision introduce 6-ch Full HD-SDI DVR Series
Product News

Hikvision introduce 6-ch Full HD-SDI DVR Series

Hikvision continues its highly-successful HD-SDI DVR series with its newest edition: the high-end HD-SDI DVR series

Read more

List your business for free

Create a business listing on the UK's leading security and fire directory

Get the IFSEC Global newsletter

The latest security and fire news, trends and insights

Close
FOR MORE INFORMATION CONTACT HIKVISION
* Oops!
* Oops!
* Oops!
* Oops!
* Oops!
I have read, understood and consent to your Privacy Policy
* sorry this is a required field
MESSAGE SENT!

Thanks for using IFSEC Global Directory,

Your enquiry has been sent to the selected companies, they will be in contact shortly.