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What is the difference between a 1.3 MP Camera & a 1MP HD Camera & what is the advantage?
HD is a type of megapixel camera. All HD cameras are megapixel but not all megapixel cameras are HD.While standard definition cameras (e.g., analog cameras and 4CIF IP cameras) have no more than 400,000 pixels, all megapixel cameras (including HD) have 1,000,000 or more pixels.
HD Camera Key Features Compared to Typical Megapixel Camera: •Maximum HD camera resolution is 2.1MP, maximum megapixel resolution is 16MP •HD video format is 1280 x 720 or 1920 x 1080 (megapixel cameras can offer many more formats) •HD aspect ratio is 16:9 (compared to 5:4 or 4:3 in other surveillance cameras) •HDTV has quality compliance standards (where megapixel simply specifies the number of pixels)
HD cameras are referenced as 720p (1MP) and 1080p (2MP). In HD technology 1080p is the greatest pixel density but megapixel is available as high as 16MP.
Another difference: HD has a 16:9 aspect ratio, which is a wide screen type view, whereas megapixel typically has a 4:3 aspect ratio. This is squarer, like an older TV screen. Also, HD has quality compliance standards to meet whereas megapixel simply specifies the number of pixels.
In the correct application HD and megapixel cameras can be of great advantage as well as cost effective. Because of the pixel density in this technology it is possible to look at large areas while maintaining the detail that would require multiple SD cameras. This pixel density can allow the ability to zoom into the scene live or for forensic review, giving the system greater flexibility and performance. How much you can zoom into the scene is determined by the area being viewed and the pixel density.
Megapixels Only (From 1MP to 16MP)
A 1.3 Megapixel camera has more pixels than the 720p. Basically it has 1.3 million compared to 1 million on the 720p. Pixel counts can go quite high. The highest count at present is 16 million, generally abbreviated as 16MP. Now compare that to the old-fashioned SD camera, which shoots at about 400,000 pixels. It’s easy to see how much sharper either the 1.3MP would be compared to that! The 1.3MP have more than 600,000 additional pixels for a much better image.
High Definition (720p and 1080p)
HD technology uses megapixels, but megapixel technology does not have to utilize high definition. There are essentially two HD pixel counts. The first is the 720p, essentially one million megapixels, commonly abbreviated as 1MP. The second is 1080p, essentially two million megapixels or 2MP. Although it may seem to add to the confusion rather than decrease it, HD cameras are usually shortened to 720p or 1080p to differentiate them from regular megapixel cameras.
in media and telecommunication industry A 720p HD camera shoots with a 16:9 aspect ratio. That’s a wide screen view. The 1.3 MP camera would presumably use the squarer view, much like an old television screen. This is a 4:3 aspect ratio. In terms of the area that each of these cameras can handle, it would be similar. The great thing about megapixel and HD cameras is they can reduce the number of security cameras. A single SD camera can handle a 10-foot perimeter while either the 1.3 megapixel camera or the 720p HD camera can handle a 25 foot perimeter. For business owners, this reduces the number of cameras needed to guard an area. In terms of zooming in on a subject, the 1.3MP camera would be far better than the SD, but the HD would surpass the 1.3MP.