Título: Application of symmetric orthogonal multiwavelets and prefilter technique for image compression
Autores: Chen, Jiazhong
Zhou, Jingli
Yu, Shengsheng
Xiao, Qian
Xu, Jun
Fecha: 2004-08-10
2003
Publicador: Unversidad Nacional de La Plata
Fuente:


Tipo: Articulo
Articulo
Tema: image compression; multiwavelets; prefilter technique
Ciencias Informáticas
Compresión
Prefilter
Multiwavelets
Procesamiento de imagen
Descripción: Multiwavelets are new addition to the body of wavelet theory. There are many types of symmetric multiwavelets such as Geronimo-Hardin-Massopust (GHM) and Chui-Lian (CL) multiwavelets. However, the matrix filter generating the GHM system multiwavelets does not satisfy the symmetric property. For this reason, this paper presents a new method to construct the symmetric orthogonal matrix filter, which leads to the symmetric orthogonal multiwavelets (SOM). Moreover, we analyze the prefilter technique, corresponding to the symmetric orthogonal matrix filter, to get a good combining frequency response. To prove the good property of SOM in image compression application, we compared the compression effect with other writers' work, which was in published literature.
Idioma: Inglés