WORKSHOP PAPER
320x240 SPAD direct Time-of-Flight Image Sensor and Camera based on In-Pixel Correlation and Switched-Capacitor Averaging
Maarten Kuijk1, Ayman Morsy1, Thomas Lapauw1, Thomas Van den Dries1, Mohamed.A.Bounouar2, Hans Ingelberts1, Daniel Van Nieuwenhove2
1ETRO.RDI, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium
2SONY Depthsensing Solutions, Rue Jules Cockx 8, 1160 Brussel, Belgium

Abstract

Correlation-Assisted Direct Time-of-Flight (CA-dToF) is demonstrated for the first time with a large SPAD array. The camera captures depth-sense images with a promising sub-cm precision over a 6-m range of detection even with a PDE as low as 0.7%.
Year: 2025
Workshop: IISW
URL: https://doi.org/10.60928/hymd-2b9r
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Keywords

SPAD, Time-of-Flight, Image Sensor, Camera, In-Pixel Correlation, Switched-Capacitor Averaging,

References

1) A. Morsy, M. Kuijk, "Sensors", 2024; 24(16):5380, 2024. https://doi.org/10.3390/s24165380
2) A. Morsy, C. Baijot, et al, "IEEE Sensors Letters", vol. 8, no. 10, pp. 1-4, Oct. 2024, 2024. https://doi.org/10.1109/LSENS.2024.3453038
3) C. S. Bamji et al., "IEEE Journal of Solid-State Circuits", vol. 50, no. 1, pp. 303-319, 2015, 2015. https://doi.org/10.1109/JSSC.2014.2364270