A Fully Reconfigurable Hybrid SPAD Vision Sensor with 134dB Dynamic Range Using Time-Coded Dual Exposures

초록

This paper presents a fully reconfigurable HDR intensity/event hybrid SPAD sensor. The fully reconfigurable scheme enables both pixel types to be freely blended and operated simultaneously. A time-coded dual exposure encodes saturation time to provide an adaptive secondary exposure, achieving >134dB DR in both modes while reducing quantization error of the time code. Event detection with pixel-wise shot-noise thresholding keeps uniform event noise <0.46% across all illumination conditions. © 2026 IEEE.