Zhi Zhou Yingzi Du George G. Rodney Martin F. Schneider Ca2+ Sparks Detection and Classification using Gaussian-Mexican Hat Wavelet. 253-256 2007 ICIP (6) http://dx.doi.org/10.1109/ICIP.2007.4379569 conf/icip/2007 db/conf/icip/icip2007-6.html#ZhouDRS07