Low power reconfigurable DCT design based on sharing multiplication

We present a low-power reconfigurable OCT architecture, which is based on computation sharing multiplier (CSHM). CSHM specifically targets computation re-use in vector-scalar products and is effectively used in our OCT implementation. A low power reconfigurable OCT architecture is exploited by making a trade off between image quality and power consumption. The proposed OCT architecture was implemented using 0.35µ technology. The experimental results show that reconfigurable OCT using CSHM can improve power consumption by 40 % without noticeable image quality degradation.