First-Arrival Differential Counting for SPAD Array Design
Name
sensors-23-09445.pdf
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6.64 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
White, Mel
Zhang, Tianyi
Dave, Akshat
Ghajari, Shahaboddin
Molnar, Alyosha
Veeraraghavan, Ashok
Date Issued
November 27, 2023
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Sensors 23 (23): 9445 (2023)
Version
Final published version
Abstract
We present a novel architecture for the design of single-photon detecting arrays that captures relative intensity or timing information from a scene, rather than absolute. The proposed method for capturing relative information between pixels or groups of pixels requires very little circuitry, and thus allows for a significantly higher pixel packing factor than is possible with per-pixel TDC approaches. The inherently compressive nature of the differential measurements also reduces data throughput and lends itself to physical implementations of compressed sensing, such as Haar wavelets. We demonstrate this technique for HDR imaging and LiDAR, and describe possible future applications.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3390/s23239445
