Second generation wavelet transform
≈ 1 min read
Names in other languages
- EnglishSecond generation wavelet transform
Article bodies are English and are not machine-translated. A name in another language is not a translation of the article.
In signal processing, the second-generation wavelet transform (SGWT) is a wavelet transform where the filters (or even the represented wavelets) are not designed explicitly, but the transform consists of the application of the Lifting scheme. Actually, the sequence of lifting steps could be converted to a regular discrete wavelet transform, but this is unnecessary because both design and application is made via the lifting scheme. This means that they are not designed in the frequency domain, as they are usually in the classical (so to speak first generation) transforms such as the DWT and CWT). The idea of moving away from the Fourier domain was introduced independently by David Donoho and Harten in the early 1990s.
Text derived from https://en.wikipedia.org/w/index.php?oldid=1069884432 under CC BY-SA 4.0; modifications have been made.
References
3 claims could not be tied to a specific sentence and are listed in the table below instead.