A STUDY OF DIFFERENTIAL PULSE-CODE MUDULATIUN FOR TELEVISION SIGNAL

Abstract

Differential pulse 0040 modulation (DPCM) as predictive quantizing are two name for a technique used to encode analog signals intG digital pulses suitable for tranenission over binary channels, The performance expected from well designed systema of this type when used to encode television signals are described in this diaaerta. tion. A procedure is presented for the des.ign of nonadaptive, time invariant systems. In adaptive DPCM system used to mood+ television signals the infoz tion on +onto directions derived from natgbbotn'ing picture element is used to select a suitable prediction Value for the actual swVls« The DPCM coding of color television signals is also described. .A new adaptive DPM coders with adaptive prediction for color television signals are proposed for use with NT3C, PAL and SAM television system,