Implementation of a wavelet transform architecture for image processing

摘要

The wavelet transform appears to be an efficient tool for image compression. Many works propose an implementation of the pyramid algorithm with some improvement to reduce its treatment time or to increase its perfirmances. However, the pyramid algorithm remains silicon area costly, essentially because of its memory needs, and depnding on the size of filters used. This paper proposes a new implemenation of the wavelet transform using the lifting scheme. This method proposes many improvements such as in-place calculation, small memory needs, and easy inverse transform.