  Real-time detection of moving objects involves memorisation of features in
the template image and their comparison with those in the test image. At high
sampling rates, such techniques face the problems of high algorithmic
complexity and component delays. We present a new resistive switching based
threshold logic cell which encodes the pixels of a template image. The cell
comprises a voltage divider circuit that programs the resistances of the
memristors arranged in a single node threshold logic network and the output is
encoded as a binary value using a CMOS inverter gate. When a test image is
applied to the template-programmed cell, a mismatch in the respective pixels is
seen as a change in the output voltage of the cell. The proposed cell when
compared with CMOS equivalent implementation shows improved performance in
area, leakage power, power dissipation and delay.
