Maximize Video Quality, Minimize Bandwidth- VIVOTEK Smart Stream II Technology

Taipei, Taiwan

VIVOTEK Smart Stream II combines Smart Codec and Dynamic Infra Frame Period technologies, which enable the cameras to optimize quality for desired regions and adjust encoding automatically to maximize bandwidth usage and lower storage requirements while maintaining high image quality.


Advances in camera technologies have enabled surveillance video with higher resolutions and greater dynamic range. However, this enhanced quality entails increased bit rates, consuming network bandwidth and storage capacity. In many cases, users are forced to sacrifice optimal video quality in order to avoid excessive demands on limited network and storage resources.

Smart Codec

VIVOTEK developed Smart Stream to help users resolve this dilemma by reducing the bit rates of encoded video while preserving quality. It does this by intelligently compressing data in areas in the field of view or during periods of time in which no activity of interest is occurring, while maintaining full video quality where or when such activity is present. VIVOTEK's Smart Stream II, the new generation of this groundbreaking technology, enables cameras to optimize quality for desired regions while reducing network and storage consumption even more effectively than does the previous generation.  (please refer to Fig.1 above)

Intelligent Automatic Optimization

The key advance in Smart Stream II is the addition of Dynamic Intra Frame Period technology to adjust the I-frame interval, the length of time spanned by a defined set of successive images within an encoded video stream. With Dynamic Intra Frame Period enabled, the I-frame interval can be increased or decreased in response to actual state within the field of view. However, when Smart Stream II detects that the scene is essentially static, then it can draw on Dynamic Intra Frame Period technology to increase the I-frame interval. That leads to a longer time elapsing between data-heavy I frames, with the result being reduced average bit rates, while optimal video quality is maintained where and when it's needed.  (please refer to Fig.2 above)

Smart Stream II was developed for compatibility with H.265 and for new VIVOTEK cameras adopting this successor to H.264 video compression technology. Smart Stream II thus requires no further playback integration, and any browser (with a plug-in), surveillance software, or NVR can access Smart Stream II video and begin using it. With Smart Stream II enabled on VIVOTEK’s new H.265 network cameras, users can reduce network bandwidth consumption and storage requirements by up to 80% more than with H.264 cameras.   (please refer to Fig.3 above)

A camera combining both H.265 and VIVOTEK Smart Stream II can reduce bandwidth and storage consumption up to 80% more than can cameras using H.264.

With the addition of Dynamic Intra Frame Period technology, Smart Stream II is able to reclaim even more network bandwidth and storage space for users than its already formidable predecessor. Thanks to its sophisticated Dynamic Intra Frame Period technology, VIVOTEK’s Smart Stream II is even smarter.

Business News

Jim Dearing, Access control analyst at IHS Markit

Slow up take of biometrics in access market

Ever since the first fingerprint readers came to market more than a decade ago, access control industry stakeholders have eagerly anticipated the prospect of finally eliminating cards from their systems.  However, as of 2015, biometric reader sales accounted for just 30 percent of access control reader sales in the Americas. Meaning they ranked third, still behind both 125 kHz proximity and smart card readers in popularity. "Hardly the credential revolution that manufacturers were hoping for." says Jim Dearing, analyst at research company, IHS Markit.

Business News

Vivotek expands strategic H.265 integration partnerships

Vivotek not only offers a wide range of H.265 surveillance products, but also aims to integrate and increase H.265 presence in partnership with the Solution Integration Alliance (SIA) partners worldwide. The company is already working with ten H.265 integration SIA partners, including: Axxonsoft, Genetec, Milestone, Nuuo, Synology, and more recent additions Cathexis, Digifort, Luxriot, Macroscop and Mirasys. Working closely with Vivotek's SIA partners, customers will be able to equip themselves with a comprehensive H.265 solution that meets the technical demands of just about all projects.

Comment of the month

Lennart Alexandrie, Editor in Chief, Detektor Magazine

Cybersecurity –a new buzzword for video surveillance providers

As technology development moves on at an increasing pace the security industry is constantly taking advantage of the progress. The migration from an analogue to a digital technology was a real game changer. Suddenly technology integration has become much easier and cost effective. User friendliness and flexibility seem to no long have any limits.  

Here, and, in the newly published edition of Detektor magazine 02/17, Lennart Alexandrie, gives his views on the cyber threat and how it might affect the security industry.

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