New SPAD detector design improves direct time-of-flight measurement accuracy

Researchers have developed a new method to improve the accuracy of direct time-of-flight (dToF) measurements by utilizing perimeter-gated single-photon avalanche diode (SPAD) detectors. This technique aims to reduce errors caused by system-level and circuit-level timing jitters, as well as device-level uncertainty from dark noise. The study includes a framework for estimating dToF jitters and analyzes a counter-based time-to-digital converter circuit. Experimental results using a perimeter-gated SPAD (pg-SPAD) fabricated in a standard CMOS process demonstrate enhanced measurement accuracy in both free-running and time-gated operations. AI

IMPACT This research could lead to more precise sensor technologies, potentially impacting AI applications that rely on accurate depth perception and ranging.

RANK_REASON Research paper detailing a new technical approach to improve measurement accuracy. [lever_c_demoted from research: ic=1 ai=0.4]

Read on arXiv cs.CV →

• CMOS
• dark noise
• dToF
• Md Sakibur Sajal
• pg-SPAD

• paper
• infra

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →