A Study on Improvement of Transform Coding Algoritm with 2-Source Decomposition of Interframe Prediction Errors Generated by Motion Compensated Hybrid Coding (BMA-DCT)

이동 보상형 복합 부호화 (BMA-DCT)에서 발생하는 프레임간 예측오차 전송기법의 신호 분리 및 변화부호하에 의한 성능 개선 연구

Prediction errors generated by motion compensated coding are coded with transform coding techniques as DCT. The performance of transform coding techniques are lowered mainly due to the source characteristics with a great deal of zero populations and plus-minus sign changes, i.e., low correlation. In this paper a transform coding scheme which adopts a decomposition of prediciton errors into two sources is proposed and compared its performance with conventional scheme.