... bin i Wavelet s dng cỏc hm toỏn hc c nh ngha trc khụng nht thit l hm sin, gi l cỏc hm Wavelet c s (hay cũn gi l cỏc hm Wavelet m (mother Wavelet) , cú ti liu gi l hm Wavelet cha (father Wavelet) ) ... 1.4.3.2 Bin i wavelet Haar Wavelet Haar l loi wavelet n gin nht Trong bin i ri rc thut toỏn ca wavelet Haar cũn c gi l bin i Haar Bin i Haar c xem l nguyờn mu ca cỏc loi bin i wavelet khỏc Xột ... trc tim trỏi 2.3 Dng hỡnh hc ca tớn hiu in tim Dng th ca tớn hiu in tim bỡnh thng c mụ t hỡnh 2.1 30 in tim bỡnh thng ca mi nhp tim gm ln súng ni tip c ký hiu bng ch cỏi P, Q, R, S, T, U Trong...