A negabinary encoded matrix - vector multiplication for wavelet transforms
Xiaona Yan, Ning Wang, Yaozu Yin, Liren Liu, Guoqiang Li · Journal of Optics · 1997
Wavelet transforms are very effective for analysing the information content of a signal, so how to implement wavelet transforms efficiently becomes a vital task. In this paper, we propose a novel negabinary encoded digital matrix - vector multiplication and an incoherent optical correlator to carry out discrete wavelet transforms. The method has the properties of parallelism, high efficiency and being easy to establish.