Wavelet packet

Wavelet packet is a mathematical technique used to analyze signals or data by breaking them down into different frequency components at various levels of detail. Unlike traditional methods that only examine broad features, wavelet packets allow for a detailed exploration of both high and low-frequency information simultaneously. This is useful for tasks like data compression, noise reduction, or feature extraction, as it provides a flexible way to represent complex signals efficiently. Think of it as a multi-layered lens that zooms in and out to reveal the underlying patterns within data across different scales.