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Tri-Mode Smart Vision Sensor With 11-Transistors/Pixel for Wireless Sensor Networks

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2 Author(s)
Dongsoo Kim ; Aptina Imaging, San Jose, CA, USA ; Eugenio Culurciello

We present the T-Sensor, a smart vision sensor capable of providing intensity, spatial contrast, and temporal difference images through the pixel level processing. The T-Sensor smart pixel is composed of only 11 transistors, allowing tight integration of different functionalities in a 16×21 μm2 pixel area. Focal-plan processing for temporal difference and spatial contour is implemented with maximum and minimum comparing analog circuits, allowing T-Sensor to provide high-speed imaging with low-power consumption. The sensor array is 128 × 128 pixels, with a fill factor of 42%, and operates at 800 fps and 13M events/s with a power consumption of 1.02 mW.

Published in:

IEEE Sensors Journal  (Volume:13 ,  Issue: 6 )