Title   name
2007년 KSIAM 봄 학술대회
  Speaker   Jeong, Byeongseon  
  Date 2007-05-26
  Place KAIST
  File  의 1 번째 Real Media 동영상입니다. 의 1 번째 강연자료입니다.
Abstract : This talk presents tight wavelet frames with two compactly supported symmetric generators ofmore than one vanishing moments in Unitary Extension Principle. We determine all possiblefree tension parameters of the quasi-interpolatory subdivision masks whose corresponding re-finable functions guarantee our wavelet frame. In order to reduce shift variance of the standarddiscrete wavelet transform, we use the three times oversampling filter bank and eventually obtaina ternary (low, middle, high) frequency scale. In applications to signal/image denoising anderasure recovery, the results demonstrate reduced shift variance and better performance of ourwavelet frame than the usual wavelet systems such as Daubechies wavelets.