High resolution
IP-based cameras are not restricted to the low resolution of analog cameras. With a 5-megapixel IP camera, you get ten times more detail in your images than with an analog 4CIF.
Analog cameras have a maximum resolution of 704 x 480 pixels (4CIF). With an IP camera you can get increased resolution, including HDTV (720p/1080p) and even as high as 5 megapixels (2560 x 1920). This means you can either cover a much larger area in your scene, or get a highly detailed image to meet more demanding identification requirements. 
With IP-based cameras you also have the choice of various aspect ratios. This makes it easier to capture wide scenes and enables you to focus your coverage where it is most needed.
With a high resolution camera you can select what you want to see; for example, you can choose large coverage in a store or extremely detailed information in a face.
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