대한전자공학회논문지SP (Journal of the Institute of Electronics Engineers of Korea SP)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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효율적인 시공간 보간을 통한 움직임 기반의 디인터레이싱 기법

A motion-adaptive de-interlacing method using an efficient spatial and temporal interpolation

  • 이성규 (한양대학교 전자컴퓨터공학부) ;
  • 이동호 (한양대학교 전자컴퓨터공학부)
  • Lee, Seong-Gyu (Dept. of Electronic computer Engineering, Hanyang University) ;
  • Lee, Dong-Ho (Dept. of Electronic computer Engineering, Hanyang University)
  • 발행 : 2001.09.01
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초록

본 논문에서는 EBMF(Edge Based Median Filter)와 3-Step AMPDF(Adaptive Minimum Pixel Difference Filter) 기반의 움직임 적응 디인터레이싱 알고리즘을 제안 한다. 움직임 적응 방법에서 중요한 요소인 motion missing에 의한 에러를 방지하기 위해 입력 영상을 4 가지 유형으로 구분하여 각 영상에 따라 다른 임계 값을 사용하여 정확한 화소 값을 보간 하는 AMPDF를 사용하며 움직이는 대각선 에지의 효과적인 보간을 위하여 에지에 따라 가변적인 후보 픽셀을 선택하는 EBMF를 사용하여 성능을 향상시켰다. 또한 성능을 높이기 위해 입력되는 영상을 움직임 영역, 정지 영역, 경계 영역으로 나누어 적응적으로 보간 하였으며 모의 실험을 통해 기존의 방법들에 비해 성능이 우수함을 보였다.

This paper proposes a motion-adaptive de-interlacing algorithm based on EBMF(Edge Based Median Filter) and AMPDF(Adaptive Minimum Pixel Difference Fillet). To compensate 'motion missing'error, which is an important factor in motion-adaptive methods, we used AMPDF which estimates an accurate value using different thresholds after classifying the input image to 4 classes. To efficiently interpolate the moving diagonal edge, we also used EBMF which selects a candidate pixel according to the edge information. Finally, we, to increase the performance, adopted an adaptive interpolation after classifying the input image to moving region, stationary region, and boundary region. Simulation results showed that the proposed method provides better performance than the existing methods.

키워드

참고문헌

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