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 provides a multi-resolution representation of images. The transform has been implemented using filter banks. For the design, based on the constraints the area, power and ...

Discrete wavelet transform. Given a scaling function ?0, mother wavelet ?0, and maximum scale level J, DWT is a mapping from x(t) to the approximation coefficients ax and detail coefficients dx: x(t) ...

Celso A. G. Santos ¹, Richarde M. Silva ², Seyed Ahmad Akrami ³, RAINFALL ANALYSIS IN KLANG RIVER BASIN USING CONTINUOUS WAVELET TRANSFORM, Journal of Urban and Environmental Engineering, Vol. 10, No.

This paper presents an optimized speech compression algorithm using discrete wavelet transform, and its real time implementation on fixed-point Digital Signal Processor (DSP).

Wavelets came about as a kind of update to an enormously useful mathematical technique known as the Fourier transform. In 1807, Joseph Fourier discovered that any periodic function—an equation ...

Wavelet transforms are now used everywhere from JPEG 2000 compression to the processing of the gravitational-wave signals detected by LIGO from the collisions of black holes. Meyer, 77, has also ...