Adaptive Filter Based on Adaptive Windowing

적응 윈도윙을 기반으로한 적응 필터

  • 우종진 (포항공과대학교 전자전기공학부) ;
  • 신현출 (포항공과대학교 전자전기공학부) ;
  • 송우진 (포항공과대학교 전자전기공학부)
  • Published : 2001.09.01

Abstract

We propose a novel noise littering method based on adaptive windowing. To restore a noisy signal adaptive filtering methods have been widely researched and used. However, conventional adaptive filtering methods have a trade-off between noise suppression and edge preservation since they adopt fixed size filters. In this paper applying the adaptive windowing concept to adaptive filtering, we overcome the trade-off, The filter size is adaptively selected depending on signal statistics. The visual results of the signal and image restorations convincingly show the superior preservation of edge and detail and suppression of noise for the proposed adaptive windowed adaptive filter compared with conventional methods.

Keywords