HDTV-putting you in the picture

Interest is now starting to be expressed in larger television displays, which fill more of the observer´s field of view, and hence increase their level of involvement in the programme. Unfortunately, these large screens reveal only too clearly the restricted resolution and visible line structure of today´s television standards. If the true benefit of large-screen displays is to be obtained, then the television standard itself must be changed to allow a higher definition to be achieved in the final image. Hence the term `high-definition television´, or HDTV for short, has come to imply a television standard capable of being satisfactorily displayed in this way. The author investigates recent research of development into HDTV and discusses the desire for a unique, worldwide standard for HDTV programme production