A 64x64-pixel ultra-low power vision sensor is presented, performing pixel-level dynamic background subtraction as the low-level processing layer of an algorithm for scene interpretation. The pixel embeds two digitally-programmable Switched-Capacitors Low-Pass Filters (SC-LPF) and two clocked comparators, aimed at detecting any anomalous behavior of the current photo-generated signal with respect to its past history. The 45 T, 26um square pixel has a fill-factor of 12%. The vision sensor has been fabricated in a 0.35um 2P3M CMOS process, powered with 3.3 V, and consumes 33uW at 13 fps, which corresponds to 620 pW/frame.pixel.
A 33 uW 64 x 64 Pixel Vision Sensor Embedding Robust Dynamic Background Subtraction for Event Detection and Scene Interpretation
Gottardi, Massimo;Massari, Nicola;
2013-01-01
Abstract
A 64x64-pixel ultra-low power vision sensor is presented, performing pixel-level dynamic background subtraction as the low-level processing layer of an algorithm for scene interpretation. The pixel embeds two digitally-programmable Switched-Capacitors Low-Pass Filters (SC-LPF) and two clocked comparators, aimed at detecting any anomalous behavior of the current photo-generated signal with respect to its past history. The 45 T, 26um square pixel has a fill-factor of 12%. The vision sensor has been fabricated in a 0.35um 2P3M CMOS process, powered with 3.3 V, and consumes 33uW at 13 fps, which corresponds to 620 pW/frame.pixel.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
