Compatible Systems for High Quality Television
|Author(s):||M.J.J.C. Annegarn ; R.H. Jackson|
|Publisher:||Society of Motion Picture and Television Engineers|
|Publication Date:||1 February 1983|
|Conference Location:||San Francisco, CA, USA|
|Conference Date:||4 February 1983|
|Page(s):||72 - 82|
The feasibility of introducing a picture memory into domestic receivers at an acceptable cost opens new ways to approach the improvement of television picture quality. Until very recently straightforward improvement of the system was the only way to produce a better picture. The advent of a picture memory opens up at least two alternative approaches which have been described in outline in a previous paper by Jackson and Tan (Ref 1). The options suggested were, first to assume that the normal transmission would be left unchanged and to use a combination of memory plus picture processing to achieve a greatly improved picture. Secondly, to assume the alternative starting point of achieving a large screen picture of very high quality whilst using processing to retain as much compatibility as possible. This paper gives more detail about work already done on these approaches and also suggests some new possibilities.