Security Business

JUL 2019

Find news and information for the executive corporate security director, CSO, facility manager and assets protection manager on issues of policy, products, incidents, risk management, threat assessments and preparedness.

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Page 32 of 108

32 Security Business / / July 2019 Video Surveillance and manufacturers to harness network video technology, while simultaneously cuttings costs and staying on the cutting edge of new technologies. With the finalizations of Profile G and Profile T, ONVIF has completed the circuit, providing the means whereby product manufacturers and software developers can present at a basic level an integrated video and access control system. This is a true complement to the organization’s existing profiles and aims to take standardized interoperability of security systems to new heights. H.265 and Profile T Profile T employs a new media service that is compression agnostic – meaning 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. 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. With the development of Profile T, users are given more opportunities to utilize profiles together and create the best, most future-proof surveillance system possible. Reduced bandwidth and storage requirements are the primary benefits of video compression technologies, and the main feature of Profile T. 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, reducing playback issues and the strain on hardware. ONVIF believes H.265 will become the most widely used compression format on the market, and has developed a migration path that will serve the industry well into the future. How the Profiles Can Work Together With Profile T, Profile G and potentially Profile S working in conjunction to provide a connected solution, end-users can have peace of mind that their video data is being stored and retrieved as quickly as possible. This enables users to react to events as soon as they happen, and ensures all systems are communicating properly and efficiently. Profile T further enables customers to choose the products that work best for their needs, while simultaneously analyzing which parts of an image are most important and adjusting local levels of compressions accordingly, thanks to H.265 capabilities. Profiles complementing profiles means the market will soon have the potential for untapped interoperability capabilities. While Profile G and Profile T are related, the two are independent profiles that encompass different functionalities of a network video system. Profile T helps to connect more head-end devices and eases the processing of video, while simultaneously providing video compression for a reduction in storage costs. Profile G broadens the potential of an ONVIF system even further by making recording and storage available on devices. Most clients may implement both profiles, such as a camera with onboard storage or a digital video recorder. While a camera may implement Profile T for transmission of video, an NVR would encompass the functionalities from Profile G. The Future As ONVIF continues to meet the demands of the market through the release of profiles, users who conform to the ONVIF standard can remain confident that their systems are fast, future proof and the most cost-effective option available. Conformance means never being tied down to a single manufacturer agreement, and in turn, means freedom of choice. With multiple profiles now supporting storage needs, the interoperability of products is more crucial than ever when implementing a future-proof system in order to keep costs low and keep the system relevant. In addressing the issue of standardization, and responding to the ever-changing needs of the market, ONVIF is constantly evolving, adding new profiles and spurring companies to expand their portfolios of conformant offerings. ■ » Per Björkdahl is Chairman of ONVIF’s Steering Committee. Learn more about ONVIF at 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.

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