← 返回 JSSC 论文列表JSSC 2020第7期Image Sensors40nm CMOSCMOS Image Sensor
A 128 - 128 SPAD Motion-Triggered Time-of-Flight Image Sensor With In-Pixel Hist
一款128×128 SPAD运动触发ToF图像传感器，集成视觉与测距功能，动态降低功耗。
128×128分辨率，32.5k帧/秒（视觉模式），500帧/秒（ToF模式），3.5米测距精度1.5cm
单光子雪崩二极管飞行时间测距运动触发像素内直方图低功耗设计
▸运动检测触发ToF测距，仅在帧间强度变化时采集深度数据
▸像素内集成16位时间门控计数器，复用为视觉帧比较无需外存
▸嵌入式并行处理器实现片上视觉帧比较与二进制帧压缩
Abstract
A 128 × 128 single-photon avalanche diode (SPAD)
motion detection-triggered time- of-flight (ToF) sensor is imple-
mented in STMicroelectronics 40 nm CMOS SPAD foundry
process. The sensor combines vision and ToF ranging functions
to acquire depth frames only when inter-frame intensity changes
are detected. The 40 µm × 20 µm pixels integrate two 16-bit
time-gated counters to acquire ToF histograms and repurpose
them to compare two vision frames without the requirement for
additional out-of-pixel f