Bandwidth (376)

Displaying 'Bandwidth' tags 351 - 375 of 376 in total

Examining Arecont Vision's Performance Claims

SecuritySquared has an interview with Arecont's VP of Sales NA [link no longer available]. Arecont provides a straightforward sales pitch on the benefits of megapixel and H.264. The 2 aspects that I would flag are (1) the bandwidth benefits relat...

By John Honovich - about 11 years ago

How Much Storage is Needed for Video Surveillance?

How much storage is needed for video surveillance is an important question for planning new system deployments and for determining total installation cost. In the last few years, fears have increased dramatically that the amount of storage needed...

By John Honovich - about 11 years ago

Axis Bandwidth Calculator Includes Scene Complexity

In a July 2009 report about calculating video surveillance bandwidth, I mentioned that calculators generally suffer from not including key parameters in their calculators - making the calculations no better than guesses. Axis pointed out their Des...

By John Honovich - about 11 years ago

IP Camera 2009 Mid Year Review

Megapixel was the most dominant trend in IP cameras over the first half of 2009. So dominant was megapixel, that not only did most manufacturers release new megapixel cameras but a new non-IP megapixel standard was proposed. Not surprisingly, indu...

By John Honovich - about 11 years ago

Testing StarDot's 5MP Camera (SD500BN)

While not well known in the security market, StarDot is one of a few manufacturers providing 5MP cameras. Though StarDot has been producing megapixel cameras for the tourism, construction and entertainment markets for years, they only recently ent...

By John Honovich - about 11 years ago

Testing Arecont Vision's AV3105 H.264 Camera

Arecont Vision's H.264 megapixel product line has drawn an immense amount of interest. At the beginning of 2008, Arecont was the first surveillance company to announce H.264 multi-megapixel and is currently the only manufacturer offering H.264 meg...

By John Honovich - about 11 years ago

Top 5 Problems of Managed Video Surveillance / SaaS

Today in 2009, Managed video is becoming one of the most overhyped trends in the video surveillance industry. A number of factors drive interest. The concept of reducing on-site setup and eliminating deployment of DVR/NVRs is quite attractive. Fu...

By John Honovich - about 11 years ago

Testing Vivotek IP7161 - 2MP MPEG-4 Camera

Vivotek's new 2MP camera (the IP7161) expands low-cost product options in multi-megapixel cameras. The IP7161's specification include support for MPEG-4 (but not H.264) and has a maximum frame rate of 10fps at 1600 x 1200. The test results show t...

By John Honovich - over 11 years ago

3 Key Differentiators in Megapixel Camera Testing

3 important differentiators among the cameras I am currently testing: Effective or 'true' resolution: The stated pixel count (1.3MP, 2MP, etc) is proving to be a misleading metric to judge cameras. More pixels often do not mean better image qua...

By John Honovich - over 11 years ago

Do Megapixel Cameras Provide Better Image Quality?

Pixels get all the attention but image details are what is really important to video surveillance users. The more image details, the more cases that can be solved and the fewer cameras that need to be deployed to obtain that evidence. More pixels...

By John Honovich - over 11 years ago

Testing No Config IP Camera Remote Viewing (StarVedia)

Managed IP Video is hot but one of the key practical problems is making installation simple. While local access is trivial, remote access of IP video can be challenging. Network cameras usually require network configuration, making users deal with...

By John Honovich - over 11 years ago

MJPEG vs. H.264

Recently, IQinVision releaed an article advocating benefits of MJPEG [link no longer available].[Update Dec 2010: We conducted extensive testing comparing MJPEG and H.264. Read our Test Results of MJPEG vs H.264.]While I found the article technica...

By John Honovich - over 11 years ago

Is Bandwidth a Problem for IP Cameras?

Integrators often cite bandwidth as a key concern for deploying IP cameras. Let's examine what the potential issues are and where they may be applicable: You do not have enough bandwidth for IP video (see our bandwidth tutorial if you want a re...

By John Honovich - over 11 years ago

Axis on Network Camera Trends

This report summarizes a presentation made by Axis GM Fredrik Nilsson on the progress and future of IP cameras (presented at the Milestone Partners Conference). As the market leader in IP cameras, knowing Axis' outlook is important to analyzing in...

By John Honovich - over 11 years ago

IT Tutorial for Physical Security Managers

Much of the fear in IT convergence comes from new technology and operational issues of using IT for physical security systems. The goal of this tutorial is to explain the key concepts and issues involved for security managers using IT for physical...

By John Honovich - over 11 years ago

Casino Video Surveillance Design Case Study

Distributed architecture is the key concept behind casino system designs. All encoding and recording is done on the single channel (blade) DVRs, before such devices are connected to the main CCTV network. The advantage of such a concept is that ve...

By Ben Wood - almost 12 years ago

SVC - A Better H.264 Coming For Video Surveillance

SVC will solve a key problem of H.264: While H.264 generates a fixed quality and sized video stream, video surveillance users can benefit greatly from the dynamic re-sizing that SVC allows. The two main benefits of this are improved remote viewing...

By IPVM - almost 12 years ago

How to Migrate from Analog to IP Cameras

Migrating from analog to IP can be tricky, mainly because most everyone has existing infrastructure in place. You rarely can simply throw out that infrastructure and start anew - the economics usually do not support it. Because of that, you need t...

By John Honovich - about 12 years ago

Examining Video Surveillance Storage Clusters

In the next few years, we will see a significant transition away from storing video inside DVR/NVR servers. This 'on-board' storage will be replaced by clustered storage that communicates with servers over an IP network. The economics are becoming...

By John Honovich - about 12 years ago

Why Centralized NVR Recording Does Not Work

Centrally recording video from remote sites is as frequently claimed as it is wrong. It is an exciting concept that fails due to basic technical details. Vendors claiming their system eliminates local recording are almost invariably wrong. The ...

By John Honovich - about 12 years ago

Avigilon's Megapixel Surveillance Offering Examined 2008

[NOTE: This report is FAR out of date and is left here simply for historical purposes. See our recent Avigilon coverage.] While megapixel cameras are a 'hot' technology, a number of factors including cost, complexity and usability undermine its u...

By John Honovich - over 12 years ago

The Value of Hybrid NVR/DVRs in IP Video Systems

Hybrid NVR/DVRs are appliances (purposed built computers) that can simultaneously support IP cameras and directly connected analog cameras. This provides simplicity and flexibility. Customers can start with their existing analog cameras and slow...

By John Honovich - over 12 years ago

Introduction to Video CODECs : MJPEG, MPEG-4, H.264

CODECs are a critical element of choosing, designing and using video surveillance systems. CODECs can lower the price of overall systems and increase the usability of systems. As such, having a basic understanding of what a CODEC is and why CODECs...

By John Honovich - over 12 years ago

Why Asymmetric Bandwidth is Important to IP Video Systems

You may notice that your home cable modem offers greater bandwidth going down to your house than going up to the Internet. For instance, while you may have 3 Mb/s download, you can only upload at 384 Kb/s. This is an example of asymmetric bandwid...

By John Honovich - over 12 years ago

How does Cisco Video Surveillance affect me?

For 2 years now, speculation has been high on Cisco's video surveillance play. The Harrah's announcement magnifies this fear and excitement. To help assess the impact, this article reviews Cisco's video surveillance products, positioning and pric...

By John Honovich - over 12 years ago

Displaying 'Bandwidth' tags 351 - 375 of 376 in total