A precursor to the concept of motion compensation dates back to 1929, when R.D. Kell in Britain proposed the concept of transmitting only the portions of an analog video scene that changed from frame-to-frame. The concept of inter-frame motion compensation dates back to 1959, when NHK researchers Y. Taki, M. Hatori and S. Tanaka proposed predictive inter-frame video coding in the temporal dimension.[7]