Digital video recorders (DVRs) - Expert commentary

ONVIF Profile T And H.265: The Evolution Of Video Compression
ONVIF Profile T And H.265: The Evolution Of Video Compression

In today’s market, efficient use of bandwidth and storage is an essential part of maintaining an effective video surveillance system. A video management system’s ability to provide analysis, real time event notifications and crucial image detail is only as a good as the speed and bandwidth of a surveillance network. In the physical security industry, H.264 is the video compression format used by most companies. Some companies also employ H.264 enhancements to compress areas of an image that are irrelevant to the user at a higher ratio within a video stream in order to preserve image quality for more important details like faces, license plates or buildings. The H.265, H.264’s successor, will be increasingly used for compression in the future. Some companies are already using H.265 in their cameras and video management systems, while a host of other manufacturers are certainly preparing for its broader adoption in the years to come. Video Compression Technologies Reduced bandwidth and storage requirements are the primary benefits of video compression technologies Reduced bandwidth and storage requirements are the primary benefits of video compression technologies. In some cases, H.265 can double the data compression ratio of H.264, while retaining the same quality. Increased compression rate translates into decreased storage requirements on hard drives, less bandwidth usage and fewer switches – all of which reduce overall costs of system ownership. H.265 compression delivers a lower bitrate than H.264, which is relevant to end users and integrators because the lower bitrate reduces strain on hardware and can reduce playback issues. It’s very important that the compression format that is used is supported in all of the different components of a system: cameras, desktop computers on which the VMS is running and the VMS itself. It is also good for end users and integrators to understand the basics of video compression. Having a basic understanding of compression allows users to tweak settings to reduce bandwidth usage even more. Many cameras come with default settings that can be changed to ultimately reduce costs. ONVIF Physical Security In the physical security industry, ONVIF is working to incorporate into its specifications the use of new formats such as H.265 but is not directly involved in developing the compression standards themselves. With Profile T, the new ONVIF video profile released will employ a new media service that is compression agnostic. This means that it can support new video compression formats, including H.265, as well as new audio compression formats, with the ability to include new video and audio codecs as needed in the future without having to redesign its media service. In the physical security industry, ONVIF is working to incorporate into its specifications the use of new formats such as H.265 Standardization organizations that are directly addressing new compression standards include the International Telecommunication Union (ITU), the Moving Picture Experts Group (MPEG) and a joint commission of the International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC), which is addressing the coding of audio, picture, multimedia and hypermedia information. Other compression formats on par with H.264 and H.265 are being developed by companies such as Google. H.265 Compression Formats Using products that employ H.265 compression will reduce costs through bandwidth reduction, as will changing default settings on cameras, which are often conservative. Having a basic understanding of compression formats and how to tweak camera factory default settings also gives integrators the ability to further reduce bandwidth for added costs savings and increased system performance. These enhancements will analyse which parts of an image are most important and adjust local levels of compressions accordingly It is also worth noting that H.265 enhancements will likely be developed by camera manufacturers to further reduce bandwidth, as was the case with H.264. These enhancements will analyze which parts of an image are most important and adjust local levels of compressions accordingly. While H.265 itself is ready for prime time, its value as a tool for IP-based surveillance systems is dependent on support for the codec in all parts of the system – the VMS, server hardware, graphics cards and camera. Though widespread H.265 adoption is predicted, providers of these components are jumping on the H.265 bandwagon at different rates of speed. ONVIF is including support for H.265 in its new video profile, Profile T, because it believes it will become the most widely used compression format and ONVIF recognizes the need to anticipate that migration as a future need of the industry. The new media service, which will be implemented with Profile T, will be future-proof in that when new compression formats are released in the future, ONVIF can adopt them very quickly. That flexibility will definitely help integrators.

HD Over Coax Provides Cost-effective Video Surveillance Upgrade
HD Over Coax Provides Cost-effective Video Surveillance Upgrade

According to IHS Market, it is estimated that there are over 60 million security cameras in the United States, and other reports say these cameras capture more than four billion hours of footage per week. Over the last decade, IP camera technology has dominated the conversation as it has provided users with a broad offering of enhanced image quality and features. With a large percentage of existing security systems relying on analog, many end users looking for high definition (HD) video quality have been forced to take on a complete system overhaul. Infrastructure Overhaul For HD Video To make the switch, customers would need to change everything, from cameras to hardware to wiring– not to mention the lengthy installation process that would ensue. IP cameras also require higher Internet speeds and more cloud space. Whether constrained by budget, bandwidth or storage, many end users have been unable to adopt this new video surveillance method.Thanks to technological advancements within the security industry, HD over Coax offers a viable solution for integrators and end users alike Thanks to technological advancements within the security industry, HD over Coax offers a viable solution for integrators and end users alike. By utilising the current Coaxial cables, this offering yields high definition video, while requiring minimal infrastructure changes and is an optimal surveillance choice for security customers. Plus, with new advancements and updates being made frequently to this technology, there is a solution for every security need. The enhanced alternative of HD over Coax has been warmly welcomed in the security industry, thanks to its simple solutions and ever-evolving features. Many new analog HD cameras are “plug and play,” able to connect directly to existing Coaxial cables. This eliminates the need for a complete system change, creating cost-savings for the end user and an enhanced video quality offering. Easy Solutions For HD Video As a result, integrators can cost-effectively upgrade their customer’s surveillance solution while using their legacy infrastructure, making it an attractive option for end users and an easy sell for dealers. Latency in video is another common issue with network-based camera systems, where even the slightest delay in video surveillance can hinder security response HD over Coax cameras themselves are always expanding and evolving to meet a wide array of security needs. With the introduction of fisheye and multi-sensor cameras, users now have a multitude of coverage options, not to mention the introduction of 4K bringing resolution options to the same level as IP. Some newer technologies are even touting 4K cameras paired with 4K digital video recorders (DVRs) made specifically for analog systems. Longer cables grant transmission for up to 1600 feet, double the distance of standard analog solutions, and triple that of IP systems. This single cable is able to transmit both HD video and audio. Recently, broadcast quality audio over Coax has become available in limited models, a substantial improvement over older analog technology, which was unable to transmit audio. Stopping Video Delay Latency in video is another common issue with network-based camera systems. Even the slightest delay in video surveillance can hinder security response. IP cameras are forced to compress and packetize their video for transmission. The outcome of this is a reduced number of images per video, which in turn causes delay. HD over Coax on the other hand, delivers an unlimited amount of HD images in real time, with smooth motion and impressive clarity. Additionally, the point-to-point transmission delivers uncompressed video free of lag. Another touted benefit is that, unlike IP networked cameras, analog systems provide a more secure video transmission. With so much sensitive information housed on a businesses’ network, adding another point of network access through an IP camera can create concerns for cyber security risks. HD over Coax delivers an unlimited amount of HD images in real time, with smooth motion and impressive clarity Preventing Network Hacking With HD over Coax, the physical connections between the camera and DVR prevent network hacking. By keeping the video surveillance system offline, security professionals are able to direct their attention to the physical threats at hand, rather than having to focus on deterring cyber security risks. One of the primary difficulties of deploying HD video solutions is the fact that many older systems utilize a wide variety of HD standards and platforms. To make matters more complicated, after HD over Coax was brought to market, manufacturers raced to create their own version of this technology. Today, the most popular proprietary standards are HD-CVI, HD-TVI and AHD. However, integrators and customers found that attempting to manage multiple HD technologies proved to be near impossible.Integrators and customers found that attempting to manage multiple HD technologies proved to be near impossible Diversifying Surveillance Through One DVR To combat these issues, manufacturers have introduced products with more flexibility to their portfolios. One example of this is the penta-brid DVR which grants the ability to seamlessly integrate multiple technologies deployed across one application. This means that systems with diverse camera brands and technologies, such as a mix of HD-CVI, HD-TVI, AHD, analog or IP, can be connected through one DVR. For many end users with legacy analog systems, penta-brid DVRs give them greater freedom to choose between a variety of solutions, rather than being limited to one option. With video resolution increasing, the space needed to store the footage is similarly rising. Penta-brid technology has been able to adapt to these evolving needs, giving users ample storage space to house the HD and 4K surveillance video with some of the newest models including H.265 compression.  HD Casino Surveillance Made Simple For casinos, HD images are critical for identifying unauthorized personnel and unlawful behaviours to create a safe environment for guests and staff While HD over Coax is beneficial to many end users and integrators, those in the casino and hospitality markets find it crucial. With a combination of high profile guests, large amounts of cash on hand, constant crowds and strict industry regulations, reliable video surveillance is a must. Deploying new IP systems comes at a stiff price. When looking to upgrade their video surveillance, casinos must also be mindful of the installation process. When moving to an IP-based system, ripping out old wires and replacing them with new is the standard practice. This practice can be both disruptive and costly, not to mention gaming regulations require casino activities be monitored at all times so a complete system shutdown would result in revenue loss. This cost can be hard to justify, especially when the current legacy analog system remains in working condition with only the lower image resolution to date it. For these scenarios, the most cost-effective option is to leverage the legacy infrastructure, replace the existing cameras with new devices, and reap the benefits that HD video has to offer without any lapse in security. For casinos, HD images are critical for identifying unauthorized personnel and unlawful behaviours to create a safe environment for guests and staff. HD over Coax cameras now offer the same resolution as IP cameras with a plug and play approach, that cuts down on expense without sacrificing quality. For businesses and applications that are unable to adopt IP technology, whether it be cost or time prohibitive, HD over Coax now features most of the same benefits IP has to offer without breaking the bank. By providing clear images in real time, maximizing existing infrastructure, and affording cyber security benefits, HD over Coax provides an attractive solution for many end users and integrators.

Video Surveillance Must Modernize In Storage, Recording And On-Demand Access
Video Surveillance Must Modernize In Storage, Recording And On-Demand Access

Dollars spent by video surveillance customers must go towards ensuring high-availability capture, storage and on-demand access to live and archived video. Reaching this goal mandates high-availability of independent components – camera, network, storage (edge, external), internet connectivity, display, all Video Management Software (VMS) components and an architecture that can take advantage of this. In this note, we focus on seeing our way through to a video surveillance architecture, that provides high availability storage, access to live and stored video content. Of all options available to store recorded video, edge recording is the only one that is unaffected by network failure Edge Recording Of all options available to store recorded video, edge recording is the only one that is unaffected by network failure. This makes edge storage a must-have. But, this has some limitations at present: Edge storage capacity is limited. Edge media has a short lifetime, rated only for thousands of hours of continuous recording. Most cameras are not secure and physical damage to the camera could lead to catastrophic loss of edge stored content. As storage and compression technology evolve, the constraints imposed by (1) and (2) could go away. However, securing cameras will continue to be a barrier for most installations. Secure External Storage It is thus imperative to also store video in secure external storage. Such an architecture uses edge storage to fill in content gaps created by network, external storage outages. As edge storage technology improves, larger gaps can be filled in, but one will always need external storage. By our definition, ‘external storage’ is a solution stack that includes storage media and all software (including VMS) that provide access to this storage. Access To Live And Archived Video Access to live video can either be met by external storage or directly by the camera Every surveillance solution needs to provide access to live and archived video. Access to live video can either be met by external storage or (and) directly by the camera. All things being equal, having the camera directly provide live video access, is a higher-availability solution. There is dependence on fewer components in the chain. Solutions in the market use one of the above two approaches for access to live video. Due to limited capacity and low physical security of edge storage, it makes sense at present, to have external storage meet all requests for archive video. Thus, we are led to an architecture that has heavy dependence on external storage. Dual-Recording For high-availability, external storage must be architected with redundancy. Ideally, independent components that make up external storage – storage media, associated hardware and software (including VMS components), should be individually redundant and have smart interconnectivity. However, solutions in the market rigidly tie these components together. Failure of a single component causes failure of external storage. For e.g. hardware failure of a server causes VMS component failure AND storage failure. DR provides a smart way to provide high-availability for external storage For these solutions in the market, high-availability is achieved by having additional external storage units that step-in during outages of primary units. If these additional units continuously duplicate primary units, access gaps are minimized, and archive access is un-affected during primary unit outages. This is the idea behind Dual-Recording (DR).  To meet cost budgets, these additional units can be configured to store subsampled (framerate, resolution) video content. A small number of additional units can support concurrent outages of all primary units. A few-to-many redundancy. Rising Need For Dual-Recording Most cameras cannot be physically secured, and video content produced by a camera must be stored externally. Many VMS solutions use external storage to service live video access requests. Edge storage limitations impose restrictions on edge archive access at present. So, external storage is used to service requests for archive access too. Thus, a surveillance system ends up being over-dependent on external storage. DR provides a smart way to provide high-availability for external storage. As edge storage improves, it will be able to service archive access requests. VMS software will need to evolve, to use this capability smartly.

Latest 360 Vision Technology Ltd news

360 Vision Technology Announces The Retirement Of Sales Director Ashley Knowles
360 Vision Technology Announces The Retirement Of Sales Director Ashley Knowles

360 Vision Technology, a UK CCTV manufacturing company, has announced that with effect of 15th January 2020, Sales Director Ashley Knowles has retired from the company, and the Security Industry. “Ashley has been a founding director of the business since 2003, having previously worked at Video Controls Ltd, and has thoroughly enjoyed being part of the 360 Vision team,” says Mark Rees, 360 Vision’s Managing Director. “Over the years he  has contributed to make the company the success it is today, and that contribution will continue to impact well into the future. Ashley originally started his working life in the Construction Industry, and he is now setting up a small property company, as well as a recruitment joint venture with his youngest son. I am sure that both will benefit enormously from Ashley’s business and commercial experience.” Tremendous team of people Ashley commented: “I have thoroughly enjoyed working with Phil Burton, Mark Rees and the entire 360 Vision Technology team over the past 18 years. They are a tremendous team of people and I wish them continued success in the future. It has been an absolute pleasure. Finally, I would like to thank 360 Vision’s customers that I have managed and created personal friendships with. I am sure they will continue to receive exceptional on-going service from the 360 Vision team, and that those partnerships will continue to prosper.” While it is a sad day for 360 Vison, Ashley will leave with many friends within the organization and whom no doubt he will continue to keep in touch with. 360 Vision Technology would like to wish Ashley every success and happiness in his new ventures.

360 Vision PTZ Range Of CCTV Cameras Are Now Integrated With High Secure Cyber Protection
360 Vision PTZ Range Of CCTV Cameras Are Now Integrated With High Secure Cyber Protection

UK CCTV camera manufacturer, 360 Vision Technology, announce that its Predator ‘all-in-one’ PTZ range is now an accredited Vision HS camera solution, certified to have completed the CAPSS approval process by the Center for the Protection of National Infrastructure (CPNI). Ensuring cybersecurity measures are capable of protecting against the very real threats faced by surveillance system operators, 360 Vision Technology’s team of software developers is constantly working to ensure that these threats can be averted. Video management software “There has been a lot of negative press relating to the potential vulnerabilities integrators may accidentally introduce into their customers’ surveillance systems,” says Adrian Kirk, Strategic Account Director at 360 Vision Technology. “With concerns over the ease at which some edge devices can be used as an access gateway by cyber criminals, we’re taking cybersecurity seriously and helping integrators to mitigate that risk by specifying Predator UK manufactured cameras and Vision HS video management software." “Action to remove these threats is unlikely to happen fast as the UK market is still flooded by potentially unsafe Far East CCTV cameras that are being sold at bargain basement prices, which make them commercially attractive to some purchasers. The problem is further compounded by installation companies who may have limited expertise when it comes to providing tight network security.” Security and corporate confidentiality 360 Vision cyber security protection ensures surveillance capability is not compromised" "For example, steps should be taken to prevent the edge device’s set-up browser being accessed - enabling a hacker to disable or change critical camera settings, or worse, access the wider corporate network. However, supporting peace of mind for any integrator or end-user, when a 360 Vision Technology Predator camera is deployed at the edge, it cannot be used to enable unauthorized access to a security or corporate network.” Despite the increased emphasis on cybersecurity, and more and more sophisticated cyber-attacks taking place, many leading camera manufacturers still supply easy to get to, direct access points (typically via an RJ45 port), located within a camera’s power supply – but removing this risk is essential to ensure security and corporate confidentiality is not compromised. Cyber security protection “360 Vision cybersecurity protection ensures surveillance capability is not compromised, by removing the risks associated with insecure camera access,” Adrian concludes. “To provide additional protection for our customers, we are proud to announce that the ‘Predator HS’ product range is now an accredited camera solution to work with Vision HS - certified to achieve CAPSS approval by the CPNI.”

360 Vision To Exhibit TX Wireless Video And Predator Radar Camera Ranges At Intersec 2020
360 Vision To Exhibit TX Wireless Video And Predator Radar Camera Ranges At Intersec 2020

360 Vision Technology, globally renowned UK-based CCTV manufacturer, has announced that they will showcase their latest range of high-performance surveillance cameras on the Nukleas Integrated Security Solutions booth, Sheikh Saeed 2, G35, at Intersec 2020, 19-21 January, Dubai. ‘TX’ video transmission cameras For those looking for a reliable 3G/4G/LTE ‘wireless’ camera video solution, 360 Vision will be showing the ultimate performance Predator, Invictus and lightweight VR Dome PTZ wireless ‘TX’ video transmission cameras. Saving installers and end-users money on installation time, the TX Range needs no fixed infrastructure and provides 3G/4G/LTE wireless transmission in difficult environments. Suitable for rapid or temporary redeployable, or permanent deployment applications, 360 Vision’s TX technology delivers video & PTZ control from just 6 Kbps and Full 1080p HD edge recording, with remote retrieval on demand. Wireless video transmission systems Predator Radar scans 360 degrees once every second, to detect and track multiple objects simultaneously “Unlike traditional off-the-shelf wireless video transmission systems, the new 360 Vision TX Range has been specifically designed to suit low-bandwidth or unreliable network conditions, such as satellite or cellular networks,” says Mark Rees, Managing Director at 360 Vision. “IK10 certified, TX Range cameras include built-in cyber security, local point-to-point Wi-Fi access, and easy Plug & Play set-up, require no fixed infrastructure and can be easily integrated into any leading VMS control systems.” 360 Vision will also be showing their latest Predator Radar compact camera. Perfect for a wide range of electronic surveillance applications, Predator Radar scans 360 degrees once every second, to detect and track multiple objects simultaneously (with 400m coverage) - providing a highly effective surveillance camera solution for wide area security monitoring and intruder detection, such as within borders and compounds. Advanced SSL & 802.1 encryption protection Safeguarding against hacking and ransomware attacks, 360 Vision cameras feature advanced SSL & 802.1 encryption protection, and high-performance camera technology designed to deliver secure 24/7 video imaging, reliability and performance within any application. “We’re delighted to be at the show as part of Nukleas, the Integrated Security Solutions consortium that combines British industry excellence to support customers with complementary solutions designed to offer a refreshingly coordinated approach to all types of security projects,” Mark continues. Single integrated solution He further adds, “The Nukleas single integrated solution combines 360 Vision Technology’s robust camera surveillance solutions, along with the consortium members’ command and control systems, secure wireless transmission and networking, integrated communication hubs, incident management, perimeter intrusion detection, video analytics and safety solutions, all tailored and scalable for each unique project requirement.”

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