Tuesday, January 24, 2012

A Quick and Dirty CCTV Camera Resolution Tutorial

The CCTV camera resolution you chose will obviously affect how clear the image from your security camera will be. Understanding the basics of security camera resolution can help you make the best decision for your CCTV security setup.

Measuring CCTV Resolution

When dealing with CCTV systems, resolution is limited by the capabilities of both the camera and the recorder/monitor that you are using for your security system. Choosing a high resolution security camera won’t increase the quality of your recordings if your recorder is only capable of lower resolution display.

CCTV resolution is measured in vertical and horizontal pixel dimensions. For television specs, which most CCTV surveillance systems use, the highest resolution you can capture and store is 704 x 480 – NTSC in the U.S. – and 720 x 576, which is PAL for European displays. In security camera parlance, this is called D1 resolution, and is the highest resolution you can record on CCTV systems. You can purchase standalone recorders that support 30 FPS recording, but the real resolution is 352 x 240, which is CIF resolution.


At 352 x 240 pixels, CIF resolution is one quarter the resolution of D1. You’ll typically find this in mid level standalone DVR recorders and in higher end CCTV systems that allow for remote Internet viewing, as most wireless CCTV security systems do. They use this rather than the higher end D1 CCTV camera resolution because streaming D1 video can use a lot of bandwidth.

QCIF CCTV Resolution

The next step down in CCTV camera resolution is QCIF, which is 176 x 120 pixels in size. That’s one quarter the size of CIF resolution and is typically used when you plan on remote viewing from a mobile device such as a cell phone.

These figures are relevant if you are considering analog CCTV camera systems. IP-based digital CCTV systems are capable of far higher resolution and much more detail than analog CCTV. If you’re purchasing a new system or upgrading an existing one, most CCTV security camera experts recommend choosing hybrid cameras that will work with either type of system. That way, you won’t have to upgrade your CCTV cameras again when you upgrade your DVR or recording solution.

For the most up-to-date information on CCTV camera and security systems, talk with a security camera pro who can explain your choices in plain English. If you can explain exactly what use you plan to make of your CCTV system, a reputable security camera professional will be able to make the best recommendations for your use.

Saturday, January 7, 2012

CCTV Cameras and Security Systems for Home and Businessand

CCTV camera systems have become an important aspect in security for home and business applications. Changing technology has made CCTV cameras and DVR surveillance systems affordable for even the smallest businesses, and even homeowners are finding that the security and convenience provided by security cameras and recorders is worth the small price it costs. CCTV systems offer many advantages to both homeowners and businesses.

Security

The primary purpose of CCTV security systems is to provide ongoing surveillance in areas that human eyes can’t always be watching. Depending on the configuration you choose, a CCTV camera can provide hidden surveillance or, by being mounted in an obvious place, provide a little extra deterrence to thieves, shoplifters, vandals and burglars.

Safety

An obvious security system can offer assurance to your employees by serving as a deterrent to burglars and robbers. In addition, a security camera positioned at point of sale or other places where conflicts might arise can provide an unbiased view that can help clear your employees of wrongdoing if they’re unfairly accused. Every business owner knows that “the customer is always right” simply isn’t true, and having the video evidence to back up your employee’s side of the story can save you money and a lot of grief.

Decreased Insurance Premiums

Most insurance companies offer premium discounts to business owners and homeowners that install security cameras and CCTV systems. A decent security system – and those are more and more affordable – can reduce your chances of being the victim of a property crime. If a crime does take place, the evidence recorded by your CCTV camera and recorder can help police find the culprits and often recover stolen property. All of that adds up to lower costs for the insurance company.

Surveillance Anywhere

As long as you follow the laws in your area about where you can and cannot install surveillance cameras, you can provide visual coverage almost anywhere at all. Security cameras in the parking lot, for example, help deter vandalism and keep your customers’ and employees’ vehicles safer. A surveillance camera in the store room can help you pinpoint employee theft. Homeowners often make use of security cameras to keep an eye on a sleeping baby.

CCTV systems are available in highly customizable configurations that include indoor and outdoor cameras, waterproof cameras that can stand up to the weather or even record footage underwater.

Safety and security is important to any property owner. Investing in a quality CCTV security system can help you improve your security and keep your family, property and employees safe.