A mathematical function useful in digital signal processing and image compression In the Internet communications, wavelet has been used to compress images to a greater extent than is generally possible with other methods such as JPEG or MPEG More details
a function that "waves"; a set of wavelets creates a basis of a wavelet transform; we can distinguish a lot of kind of wavelets: Haar, Mortlet, Daubeshies, etc wavelets; they look different and they have different properties: can be orthogonal, bi-orthogonal, normalized etc
A waveform that is bounded in both frequency and duration Wavelet tranforms provide an alternative to more traditional Fourier transforms used for analysing waveforms
A member of a family of functions generated by taking translations e g , w(t) w(t 1) and scalings e g , w(t) w(2t) of a function w(t), called the mother wavelet The choice of w(t) is limited by the condition that the square of w(t) be integrable over all t Linear combinations of wavelets are used to represent wavelike signals The wavelet decomposition of a signal offers an advantage over the Fourier decomposition in that local or short-term contributions to the signal can be better represented