A Hardware-Friendly Data Compression Algorithm for SPAD-Based d-ToF Systems

This study introduces a data compression algorithm for Single Photon Avalanche Diode (SPAD)-based direct Time of Flight (dToF) systems, to reduce their memory requirements. The algorithm compresses most of the data at the pixel level, easing the readout process and providing higher frame rates. Acco...

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Bibliographic Details
Published in:International Conference on Integrated Circuit Design and Technology : proceedings pp. 169 - 172
Main Authors: Abbasi, Sohaib Iftikhar, Tontini, Alessandro, Passerone, Roberto, Gasparini, Leonardo
Format: Conference Proceeding
Language:English
Published: IEEE 23.06.2025
Subjects:
Data compression
Degradation
direct time of flight (dToF)
Distance measurement
Histograms
Laser radar
Light detection and ranging (LiDAR)
Lighting
Memory management
Meters
Numerical simulation
Single-photon avalanche diodes
single-photon avalanche diodes (SPADs)
ISSN:2691-0462
Online Access:Get full text
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Summary:This study introduces a data compression algorithm for Single Photon Avalanche Diode (SPAD)-based direct Time of Flight (dToF) systems, to reduce their memory requirements. The algorithm compresses most of the data at the pixel level, easing the readout process and providing higher frame rates. According to numerical simulations, with a maximum targeting range of 50 meters (m), the data compression algorithm can provide distance measurements up to 30 m with a relative error of 0.15 m under a challenging background illumination of 50 kilolux. The results show that the algorithm can compress 84.65 % of the data at the pixel level.
ISSN:2691-0462
DOI:10.1109/ICICDT65192.2025.11078130