Discrete Wavelet Transform (DWT): A mathematical technique that decomposes a signal into multiple components at various resolutions, enabling detailed time-frequency analysis.

The discrete wavelet transform (DWT) is being increasingly used for image coding. This is because the DWT can decompose the signals into different sub-bands with both time and frequency information [1 ...

The Discrete Wavelet Transform (DWT) is commonly employed using dyadic multirate filter banks, which are sets of filters that divide a signal frequency band into subbands.