대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

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

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

  • 서유석 (서강대학교 전자공학과) ;
  • 박래홍 (서강대학교 전자공학과)
  • 발행 : 1988.07.01
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초록

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.

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