first work in temporal bandwidth reduction for video was
on motion-compensated prediction began in 1969?
Bi-directional coding has its origins in work performed by the US
Army for remote-piloted vehicles (RPV)?
perceptual coding forming the basis of all modern high quality audio
compression schemes was first invented for speech coding in the 1970s?
I am writing a history of MPEG, tracing the development of each of
the coding tools from its origins to the final form in the standard.
Examples of major coding tools are the DCT, Motion Compensated Prediction
and Variable Length Coding. Examples of minor coding tools are DC
Prediction and Coded Block Pattern. The history is interesting because
many techniques were developed early, before economical implementation
existed, and were subsequently reinvented (probably in innocence)
when serious attention was being paid to digital video. In other
cases, techniques were developed for niche applications and published
outside mainstream journals.