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A QVGA 143 dB Dynamic Range Frame-Free PWM Image Sensor With Lossless Pixel-Leve
本文介绍了一种基于QVGA阵列的生物仿生CMOS动态视觉与图像传感器，具有无损像素级视频压缩和高动态范围特性。
143 dB动态范围，56 dB SNR，0.25% rms FPN
生物仿生动态视觉传感器PWM成像高动态范围无损压缩
▸像素级自主事件检测与PWM成像电路
▸异步地址事件(AER)通信
▸时间域相关双采样(TCDS)方法
Abstract
The biomimetic CMOS dynamic vision and image
sensor described in this paper is based on a QVGA (304
240)
array of fully autonomous pixels containing event-based change
detection and pulse-width-modulation (PWM) imaging circuitry.
Exposure measurements are initiated and carried out locally by
the individual pixel that has detected a change of brightness in
its field-of-view. Pixels do not rely on external timing signals
and independently and asynchronously request access to an
(asynchronous arbit