LING Qi, SHU Hua-zhong, LI Song-yi, et al. Computation of Discrete W Transform with Arbitrary Length Using Clenshaw’s Recurrence Formula[J]. Acta Electronica Sinica, 2007, 35(10): 1949-1953.
LING Qi, SHU Hua-zhong, LI Song-yi, et al. Computation of Discrete W Transform with Arbitrary Length Using Clenshaw’s Recurrence Formula[J]. Acta Electronica Sinica, 2007, 35(10): 1949-1953.DOI：
The Discrete W Transforms (DWT) have been widely used in the field of digital signal and image processing.Due to its high computational complexity
many fast algorithms for computing the DWT have been reported in the literature to improve the computational speed and hardware complexity.In this paper
a recursive algorithm for computing the DWT is proposed.By using Clenshaw’s recurrence formula
we derive an efficient method for computing the type-II
-III
and -IV DWT of sequences with general length.The results indicate that the proposed algorithms achieve a simple computational structure which is particularly suitable for parallel VLSI realization.
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