You do not need HD or Megapixel cameras in order to get facial capture, but it will certainly make it easier. Many people have unrealistic expectations of their camera system because of TV shows like CSI that show how they get facial capture on someone who was across the street by blowing up and digitally enhancing the image. Sorry, not possible unless the image was taken with an extremely high resolution cameras (like 15 megapixel or greater). The first thing to understand about facial capture is you need to use a dedicated camera. Typically you will have one facial capture camera used ONLY to capture and identify your subject, then an overview camera that allows you to see what they are wearing and doing. The key to facial capture is positioning of the camera and selecting a target point. For example an entrance door or an exit. Then place the camera close enough or use a lens large enough so that the target point takes up most of the image. If you wish to do facial capture you will need the face to take up no less than 25% of the entire video.
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As the rate of crime rises across businesses around the world, more and more businesses are turning to a security system to make sure they are taken care of on a continual basis. Beyond just a security officer on patrol, businesses have learned that they need something more intense that is not too sensitive. Criminals know how to scope out a business that has issues with their security, which is why security cameras enter into the picture for a lot of companies.
When planning a security system for your business, you must acknowledge the differences between a residential and commercial setting. Although security is equally important in both situations, it is important to understand that different security measures must be taken in each situation.
Since a home is typically vacant during daylight hours but people are typically at home at night, the risk of theft is diminished to some degree. Businesses, however, are quite the opposite: They are full of activity during daylight hours, but they are typically left completely empty during the late hours of the evening. Since a lot of criminal activity takes place in the dark, it is important to protect your business during late night hours.