This article describes an investigation made into the effects of DCT coefficient quantization on the picture quality of MPEG-coded video.
This involved subjective tests in which viewers were asked to grade pictures that had been coded at a fixed level of quantization.
Translations
The following translations of this document are available. These translations are courtesy of the translaters and hosted by the EBU 'as is'. The official and definitive version is the EBU English version.
Russian version of this Technical Review article [2000] - Special thanks to EBU Member RTR.
