IP Cameras - Megapixel Cameras - HD Cameras

[Guest]

So the marketing departments around the world of camera industry is shouting louder and louder: MEGAPIXEL - HIGH DEF - IP and so on.

 

So we know that a mega pixel camera is a IP camera with more then 1 000 000 pixels is this the only thing that needs to fulfilled to call a camera a megapixel? Is there any standard on this? What about HD cameras, is there any standards here? or is it just enough to have the 720P and 1080P resolution and voila it is a HD camera.

 

What standards are there? What standards need to be fullfilled before saying a camera is a HD and market it as a HD camera?

 

Also we see that some manufactures use 1/3" chips and have like a 2M pixels on that while another manufacture uses 1/2" chips for same resolution, then we have one with very small pixels that needs more light and another one with same amount of pixels but larger pixels.

 

Would like to hear everybody's thoughts about these issues and also about the standard to be fulfilled before calling a camera a MP/HD camera etc.

 

 

JD

[thewireguys 3]

http://www.axis.com/products/video/about_networkvideo/hdtv.htm

[Guest]

So then a new question comes to my mind: How to tell who follows the standard and not?

 

JD

[amirm 0]

I think you already have the full story . Resolution is independent of picture quality. So yes, if the camera has roughly 1 million pixels or more can be called megapixel.

 

On HD, that is a soft definition too even though the specs for each scan rate is defined by SMPTE, ATSC and other organizations like them. Generally though, 720p and higher is considered "HD."