Design and Simulation of a Single-Bit Digital Comparator Circuit Using MGDI Method with Ternary Gates for Image Processing Applications

Comparator circuits are fundamental components in digital systems and amplitude comparators, with various design approaches available, each differing in terms of speed, power consumption, and circuit complexity. This paper proposes a novel comparator circuit that leverages ternary gates to reduce the number of transistors used, resulting in decreased power consumption and improved circuit performance speed (or reduced circuit delay). Consequently, the proposed circuit enables a reduction in the physical dimensions of the comparator circuit board by minimizing the number of elements on a silicon chip. Two different methods, CMOS and MGDI, are investigated for comparator circuit design. Simulation results demonstrate the superiority of the MGDI method in comparator circuit design, offering reduced transistor count, lower power requirements, decreased delay, and a smaller physical footprint compared to the CMOS method. The proposed comparator circuit is further applied to process CT-SCAN images for the diagnosis of COVID-۱۹ and damaged lung tissues.

کلیدواژه ها:

ternary comparator circuit ، CMOS method ، MGDI method ، CT-SCAN image processing.