A Memristive Pixel Architecture for Real-Time Tracking

作者：Olumodeji Olufemi Akindele^*; Bramanti Alessandro Paolo; Gottardi Massimo

来源：IEEE Sensors Journal, 2016, 16(22): 7911-7918.

DOI：10.1109/JSEN.2016.2606599

• Memristor
• vision sensors
• light-to-resistance
• background subtraction
• motion detection
• video surveillance

We report on a pixel architecture relying on memristive devices to perform pixel-level adaptive background subtraction. Core of the processing is the pixel, containing a light-to-frequency converter. Its output digital pulses, proportional to the intensity of light, are applied in turn to a memristor, changing its resistance accordingly. Two additional memristors are used to store the dynamic boundaries, outside which the behavior of the photo-generated signal is recognized to be anomalous, i.e., unexpectedly fast changing. The main advantages of using memristors over all-CMOS implementations are a smaller pixel pitch and non-volatility, the latter allowing the image background to be modeled with programmable time constants.

• 出版日期2016-11-15