HDTV Megapixel Security Cameras.
Today, security camera technology is moving ahead in leaps and bounds and with it, the price is getting more affordable every day. HDTV/ megapixel camera technology enables network cameras to provide a higher resolution of video images than analog CCTV. In other words, they give you the ability to see more details and/or have a wider coverage of the subject, an important consideration in video surveillance applications. With an HDTV or megapixel network camera, the resolution is at least three times better (meaning a clearer, sharper picture) than an analog CCTV camera.
Expert advice is now to combine HDTV/megapixel network cameras with a selection of non-megapixel network cameras that are optimized for your other important surveillance needs (such as powerful optical zoom, extreme light sensitivity or low cost). This combo creates video surveillance installations that are effective, reliable and cost-efficient.
So, before buying a system, ask yourself the following, telling question:
What do you need to see?
HDTV and megapixel network cameras have an important role to play in modern video surveillance. They provide images that are more useful, with greater detail and wider coverage than standard resolution cameras. Depending on what you need, One Vision will bring the advantages of HDTV, megapixel and network technology to suit your surveillance requirements.
To keep things simple, when choosing your security and surveillance requirements, you have 2 main choices:
1. Overview Images
In this scenario, you need to obtain a general overview of a scene. For example, in a shopping mall, your primary camera requirement will usually be to watch for the presence of people and view their movements. It is not usually to be able to identify individuals. Or, another example, you may want to see whether a parking lot has empty spaces, rather than identify individual cars or read license plates. For overview applications, a single HDTV/megapixel network camera or a number of non-megapixel network cameras is usually sufficient to provide adequate security.
2. Detailed images
Detailed images, however, are required in the demanding situations where you need to be able to identify persons or objects clearly in a scene. Examples include POS (point-of-sales) monitoring to prevent or catch staff theft by being able to clearly see faces. High detail images can be achieved by installing a network camera with a telescopic lens or a lens with zoom capability to enable a closer view of the area(s) of interest, or by placing the camera close to the area to be monitored. In these scenarios, using a HDTV or megapixel network camera will provide even higher resolution images with more details than a non-megapixel network camera.