出典:Wiktionary
出典:『Wiktionary』 (2026/02/13 20:22 UTC 版)
discrete wavelet transform (plural discrete wavelet transforms)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/17 11:53 UTC 版)
In numerical analysis and functional analysis, a discrete wavelet transform (DWT) is any wavelet transform for which the wavelets are discretely sampled. As with other wavelet transforms, a key advantage it has over Fourier transforms is temporal resolution: it captures both frequency and location information (location in time).