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Title: First-Arrival Differential Counting for SPAD Array Design
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.  more » « less
Award ID(s):
1730574 1730202
PAR ID:
10493063
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
Sensors
Date Published:
Journal Name:
Sensors
Volume:
23
Issue:
23
ISSN:
1424-8220
Page Range / eLocation ID:
9445
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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