Wavelet analysis has gained recognition as a useful tool for analyzing time-frequency, and is playing an important role in signal and information processing. Wavelet analysis is not only based on a bright new idea, but also on concepts that already existed in various forms in many different fields. The formalization and emergence of this wavelet theory is the result of a multidisciplinary effort that has brought together of varied disciplines. This book captures the essence of the state of the art in wavelet analysis and active media technology.