The Modeling And Analysis Of The Image Quality Of The Computer Screen

This paper applies VM5000 Automatic Video Measurement System and test VGA interface. It measures seven types of video measurement parameters that are color bars,Ch-Ch Mismatch, Ch-Ch Skew,Luma Levels,Video Transient,Linearity and Noise Inj Ratio,which impact the quality of computer screen image.When the resolution ratio is 800×600 resolving power,seven types of video measurement parameters are measured and analyzed bu using VGA line.When we use UTP of twisted pair to measuring,it needs to make a test,further analysis and process under four common resolutions.Under different resolutions,the variation of seven types of video measurement parameters are measured by the change of the length of VGA line and UTP of twisted pair.Based on the advantage of Chebyshev polynomial in polynomial data fitting,the datas are fitted by using Chebyshev polynomial function.Furthermore,the functional relation between the different length of VGA line or UTP of twisted pair and all types of video parameters which impact the quality of computer screen image under all resolutions are constructed.The function highly tallies with more experiment datas...