This bit is all maths and I make no apologies for it! It is one of the methods used to evaluate the effect processing has on signals and ultimately picture quality. PSNR is a derivative of the Signal ...

So what testing do we do and how do we do it? Test results can only be seen to be accurate if as many variables as possible have been removed or at least minimised, and the methodology produces ...

As you may recall, I am a man who wears many hats. For example, one of my roles is Chief Technical Officer (CTO) at LogiSwitch, where our mission is to debounce the signals coming from ...

BBC principal technologist Andy Quested has detailed European Broadcasting Union recommendations to answer criticism of BBC HD's picture quality. After new encoders were introduced by the BBC on ...