Title :
A study of direction selection properties of the 2-dimensional complex wavelet packet transform
Author :
Zhang, Zhong ; Kato, Takeshi ; Toda, Hiroshi ; Imamura, Takashi ; Miyake, Tetsuo
Author_Institution :
Instrum. Syst. Lab., Toyohashi Univ. of Technol., Toyohashi, Japan
Abstract :
In this paper, we expand the perfect translation invariant complex discrete wavelet packet transform (PTI-CWPT) to the 2-dimensional PTI-CWPT for separating more directional components. A new definition is made for evaluating its directional selection and resolution properties. The results show that the 2-dimensional PTI-CWPT is capable of separating 30 directional components with each directional component having uniform energy.
Keywords :
discrete wavelet transforms; edge detection; image resolution; 2-dimensional PTI-CWPT; 2-dimensional complex wavelet packet transform; direction selection properties; directional component separation; edge detection; perfect translation invariant complex discrete wavelet packet transform; resolution properties; Discrete wavelet transforms; Electronic mail; Manganese; Image processing; Wavelet Packet Transform; edge detection; space-frequency analysis;
Conference_Titel :
Wavelet Analysis and Pattern Recognition (ICWAPR), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4577-0283-9
DOI :
10.1109/ICWAPR.2011.6014504
