INTRODUCTION

 

 

 

Why do we measure video?

Video is a high-tech business that makes use of engineering to acquire, store, manipulate, send and display pictures. Measurement is essential to engineering. To describe an engineering situation, we must be able to measure and quote all the dimensions. When we talk of pictures, which are the reason for video, it is insufficient to simply say ‘it is too dark or too light’. These are photographic terms, perfectly legitimate where the esoterics of picture making are concerned, but they are not engineering parameters.

Engineering measurement makes sure all the parts fit. In video this means making sure the picture fits the system. Or, turning the argument around, making sure the system can handle the picture. ...

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