Title :
A novel design method for directional selection of 2-Dimensional Complex Wavelet Packet Transform
Author :
Kato, Takeshi ; Zhang, Zhong ; Toda, Hirosm ; Imamura, Takashi ; Miyake, Tetsuo
Author_Institution :
Instramentation Syst. Lab., Toyohashi Univ. of Technol., Toyohashi, Japan
Abstract :
In this paper, we propose a design method for directional selection in the 2-Dimensional Complex Wavelet Packet Transform. Previous 2-Dimensional Complex Discrete Wavelet Transforms break up direction components, but the number of directions is small, and the directions and resolutions are fixed. So, they are not flexible enough. In this study, we propose a new design method that can detect desirable directions and resolutions. Finally, the proposed method is applied to defect detection in semiconductor wafer circuits in order to validate the proposed method.
Keywords :
edge detection; filtering theory; integrated circuits; wavelet transforms; 2-dimensional complex wavelet packet transform; defect detection; directional filter design method; edge detection; semiconductor wafer circuits; Design methodology; Image resolution; Wavelet analysis; Wavelet coefficients; Wavelet packets; Directional selection; Edge detection; Image processing; Space-frequency analysis; Wavelet packet transform;
Conference_Titel :
Wavelet Analysis and Pattern Recognition (ICWAPR), 2012 International Conference on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1534-0
DOI :
10.1109/ICWAPR.2012.6294817
