This paper presents a fast algorithm to perform the 2-D discrete periodized wavelet transform based on the operator correlation algorithm (OCA). The OCA-based algorithm needs half of the multiplications and bits required by the classical algorithm. The OCA-based algorithm is modular inherent. It can be easily mapped to VLSI design.
['King-Chu Hung', 'Jyh-Horng Jeng', 'Yu-Jung Huang', 'Chi-Wave Hung']
An OCA-based fast algorithm for 2-D discrete periodized wavelet transform