CDS Free Frame Differencing Event Vision Pixel with Lateral Overflow Capacitor for Dynamic Range Extension
This paper reports on a redesign of an event pixel by frame differencing with a lateral overflow capacitor for dynamic range extension. In the first prototype, the inclusion of an inpixel correlated double sampling (CDS) and an algorithm for dynamic range extension resulted in a large pixel area, with a 32μm pitch in 180 nm CMOS technology. This paper studies a CDS free version of our former pixel through post-layout simulations. The pixel pitch is shrinked to 22μm, power consumption is lowered and speed is preserved.
keywords: Event-based sensors, Frame-differencing, HDR, CMOS
Publication: Congress
1716885178683
May 28, 2024
/research/publications/cds-free-frame-differencing-event-vision-pixel-with-lateral-overflow-capacitor-for-dynamic-range-extension
This paper reports on a redesign of an event pixel by frame differencing with a lateral overflow capacitor for dynamic range extension. In the first prototype, the inclusion of an inpixel correlated double sampling (CDS) and an algorithm for dynamic range extension resulted in a large pixel area, with a 32μm pitch in 180 nm CMOS technology. This paper studies a CDS free version of our former pixel through post-layout simulations. The pixel pitch is shrinked to 22μm, power consumption is lowered and speed is preserved. - Marko Jaklin, Daniel García-Lesta, Paula López, Victor M. Brea - 10.1109/ICECS58634.2023.10382873
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