This research is performed under the support of National Labor of Mold Technology HUST ,Data Storage System HUST and Machine Perception Peking University.
Xu Changfa, Cai Chao, Pi Minghong, Zhu Chunxi, Li Guokuan. Correlation Wavelet and its Applications[J]. Chinese Quarterly Journal of Mathematics, 1999, 14(1): 5-9.