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 VIVOTEK news

VIVOTEK Extends AI Video Analytics, Cybersecurity And Compatibility With Genetec And Milestone
VIVOTEK Extends AI Video Analytics, Cybersecurity And Compatibility With Genetec And Milestone

VIVOTEK, the global IP surveillance solution provider, announced enhancements in compatibility for AI video analytics and cybersecurity with its strategic video management software partners, Genetec and Milestone. These advances empower users to deploy intelligent and secured IP surveillance systems while enjoying seamless connectivity. AI video analytics Implementing AI into its core technology, VIVOTEK adopts an advanced AI engine in people detection and develops Smart VCA technology with higher accuracy and fewer false alarms. The on-board VIVOTEK Smart VCA suite includes advanced detection of Intrusion, Loitering, Line-Crossing, Unattended Objects, Missing Objects, Faces, and Crowds. Each Smart VCA event from a VIVOTEK network camera can also be set to trigger a relevant alarm in both Genetec Security Center and Milestone XProtect® video management software. Moreover, security operators now can visualize bounding boxes and detection areas through Milestone XProtect® video management software. Advanced cybersecurity protection To address rising threats to cybersecurity, VIVOTEK provides end to end comprehensive protection with its Cybersecurity Management Solution in partnership with Trend Micro, a global provider in cybersecurity solutions. Now security operators can obtain advanced cybersecurity protection and also receive event notification via either Genetec Security Center or Milestone XProtect®. Reinforce video analytics Peter Chang, Director of VIVOTEK Product Planning Division commented, “In 2014, VIVOTEK launched its Solution Integration Alliance (SIA) program to cooperate effectively with global partners who bring to the table different expertise in different areas. Genetec and Milestone are two of our strategic video management software partners and we will continue to invest more resources to facilitate mutual alliances. Together, we are able to reinforce video analytics and grow the businesses in this connected world and we imagine a safer, more intelligent, and more secure future.”

VIVOTEK Announces Election Of New Board Of Directors At Its 2020 Annual Shareholder Meeting
VIVOTEK Announces Election Of New Board Of Directors At Its 2020 Annual Shareholder Meeting

VIVOTEK, a globally renowned IP surveillance solution provider, held its 2020 Annual Shareholder Meeting and elected new Board of Directors. The nine new Directors elected to VIVOTEK’s Board of Directors are Bill Lo, Simon Chang, Judy Wang, Zoe Cherng, Owen Chen, Eddy Lan, Ji-Ren Lee, Sin-Hui Yen, and Chung-Yang (Ric) Huang. VIVOTEK Board of Directors Three of those elected, Ji-Ren Lee, Sin-Hui Yen, and Chung-Yang (Ric) Huang are independent directors. VIVOTEK also held the first meeting of the Board of Directors. The board elected Mr. Bill Lo, the General Manager of Delta Building Automation Business Group as VIVOTEK’s new Chairman. This new team will carry out leadership of VIVOTEK while enhancing corporate governance The VIVOTEK operation team includes: Chairman Mr. Bill Lo; President Mr. Alex Liao; Executive Vice President of Brand Business Group, Mr. William Ku; and Executive Vice President of ODM Business Group, Mr. Gordon Chen. This new team will carry out leadership of VIVOTEK while enhancing corporate governance and achieving long-term sustainability for the Company. Development of IP surveillance systems The former Chairman Mr. Owen Chen founded VIVOTEK Inc. in 2000, building on his profound experiences in Telecommunication research and development. Under Mr. Chen’s leadership, VIVOTEK moved from technology licensing to the development of IP surveillance systems and focused on 3 core technologies: video, voice, and communication. He insisted that research, development, design and manufacture all take place in Taiwan and developed practices of Own Brand Manufacture (OBM) and Own Design Manufacture (ODM) from the outset. Expanding global footprint Under his leadership of over the past two decades, VIVOTEK held its Initial Public Offering (IPO) on the Taiwan Stock Exchange, expanded its global footprint into over 116 countries and established branch offices in 6 countries. With deep roots in Taiwan, VIVOTEK has grown into a global company of 1000 employees. The Company has ranked as Taiwan’s top IP surveillance company and is the only Taiwanese company among the top 20 in the global security market. Global IP surveillance market Facing the fierce competition of globalisation, the company decided to partner with Delta Electronics in 2017" With regards to VIVOTEK’s long history in the field, Mr. Owen Chen said, “Over these two decades, we have strived to win this marathon. Now, this marathon has become a relay race. To overcome existing challenges, passing on the torch to reshape VIVOTEK is imperative.” Owen adds, “Facing the fierce competition of globalization, the company decided to partner with Delta Electronics in 2017. Combining our strengths, VIVOTEK is able to advance development in technology, channel penetration and operation efficiency. I will remain on VIVOTEK’s board of directors. In this way we can retain and continue to build a sustainable business in VIVOTEK.” Partnership with Delta Electronics Bill Lo, the new Chairman of VIVOTEK, now serves as the General Manager of the Building Automation Business Group at Delta Electronics Inc. Before joining Delta Electronics in 2017, he worked at IBM for over twenty years with proven track records in international business development, customer service, and coordination capability. Mr. Bill Lo stated, “I’m very proud to serve in my new position as Chairman of VIVOTEK. Security and video surveillance are such critical aspects of building automation as they go beyond and extend diverse applications in smart cities, smart retail and smart transportation. I will work side by side with VIVOTEK’s team; together we can maximize and synergize our two companies.”

Open Security and Safety Alliance Announce Commercial Video Security Cameras And Application Interface Specification
Open Security and Safety Alliance Announce Commercial Video Security Cameras And Application Interface Specification

The Open Security & Safety Alliance (OSSA), an industry body comprised of influencers and innovative organizations from all facets of the security, safety and building automation space, announced a series of milestones achieved in the past 20 months since the Alliance opened its doors. Significant markers include the OSSA common Technology Stack and two resulting specifications, the introduction of the first OSSA-inspired digital marketplace, and the newly unveiled “Driven by OSSA” designation for the first commercially available video security devices based on the Alliance philosophy and purpose. These accomplishments roll up into the organization’s overall vision of ‘one global approach to fuel the creation of new value within the security and safety space.’ Consistency across video security devices The OSSA-orchestrated ecosystem is designed to enhance trust, and to enable innovation and opportunity for industry stakeholders and customers. The initiative is anchored by OSSA’s first Technology Stack, which describes the fundamental thoughts on how to create harmony across video security devices to enhance trust and enable innovation. Under the umbrella of this guiding document, and further solidifying it, the Alliance is now launching the first two in a series of technical specifications, being: OSSA Application Interface Specification This technical specification (available to OSSA members only) defines a set of four interfaces which collectively enable third-party software applications to run on video security cameras following the Technology Stack. The input stream describes the video frames and messages the applications can subscribe to. The web API describes how applications can make use of the camera’s webserver to support, configuration and data upload to the application. The system APIs provide system information regarding OS version, capabilities and information about the video security camera. This is needed to understand the features and APIs that are available on the cameras to make use of device-specific functionality. The streaming application model allows applications to interact with each other. Apps can share their results, such as events and scene descriptions, with other apps on the device or (video management) software in the network. OSSA Compliant Device Definition Specification This technical specification sets the core system requirements for video security cameras following the OSSA Technology Stack to provide a basis of trust and for app interoperability across vendors. This spec is publicly available. The First “Driven by OSSA” Commercial Cameras Camera manufacturers have started to introduce to the market, devices designed to reduce fragmentation and orchestrate harmony within an open ecosystem for the surveillance industry. The first manufacturers to launch cameras based on OSSA’s Technology Stack include Topview/Qisda, Ability/AndroVideo, Bosch (through their INTEOX camera line), VIVOTEK and Hanwha Techwin. The first commercially available products based on the specifications set forth by the Alliance, OSSA will receive a signage mark for video security cameras. Companies that use this “Driven by OSSA” signage: Are full OSSA members; have signed the OSSA by-laws guiding amongst other things minimum requirements regarding data security and privacy protection. Follow the OSSA Technology Stack for video security devices that prescribes the use of an open operating system (OS). Security & Safety Things, an OSSA member company, developed the open OS and made it available to OSSA members. Ensure seamless connectivity within one centralized digital marketplace. Offer the ability to install and execute third-party apps on their cameras. One Centralised Digital Marketplace OSSA is driving the creation of one centralized marketplace to unite demand and supply in the market. Camera devices that are built in accordance with OSSA’s Technology Stack, so-called “Driven by OSSA” devices, can benefit from this marketplace which consists of (1) a development environment (2) an application store and (3) a device management portal. System integrators, using the application store, can deploy available apps across devices, in a brand independent manner, to meet specific customer requirements. App developers will find in the development environment comprehensive tools, documentation and libraries to develop new software applications. These new apps can then be offered for sale through the application store. “This is an exciting time for security and safety professionals as the main industry players pivot together in a new direction based on digital connections afforded by the IoT,” said Johan Jubbega, President, Open Security & Safety Alliance. “In these current times of global change and uncertainty, it’s of vital importance that we persist in our quest for new market opportunities and current market efficiencies, and we’re proud to be facilitating this movement that is shaping the future of the security and safety systems environment.”

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