A 2.97µm-Pitch Event-Based Vision Sensor with Shared Pixel Front-End Circuitry and Low-Noise Intensity Readout Mode

📋 论文概要

本文提出了一种2.97µm像素间距的事件视觉传感器，通过共享像素前端电路实现紧凑设计，并引入低噪声强度读出模式以提升图像质量。解决了传统事件传感器像素面积大、噪声高的问题，实现了高动态范围与高空间分辨率。

💡 主要创新点

• 提出共享像素前端电路架构，减小像素面积至2.97µm间距，提升集成度。
• 集成低噪声强度读出模式，在事件检测基础上提供高质量强度图像，扩展应用场景。

🏷 关键词

📄 原文摘要

Toshio Terano1, Kenichi Takamiya1, Yasutaka Kimura1, Kyoji Mizoguchi1, Takahiro Miyazaki1, Shun Kaizu1, Hirotsugu Takahashi1, Atsushi Suzuki1, Christian Brandli2, Hayato Wakabayashi1, Yusuke Oike1 Sony Semiconductor Solutions, Kanagawa, Japan Sony Advanced Visual Sensing, Zurich, Switzerland 1 2 Event-based vision sensors (EVS) detect temporal contrast changes with high dynamic range using pixel-parallel comparison with a relative threshold. To achieve this detection feature, an EVS pixel comprises a logarithmic amplifier, a sampling circuit of the initial voltage, at least one comparator, and in-pixel logic circuitry [1]. The complexity of pixel circuitry constrains the pixel size. A back-illuminated (BI) stacked EVS reduces the pixel size to around 5µm [2,3], but many applications looking to take advantage of EVS require smaller pixel sizes and higher resolutions. To meet speed requirements in terms of event

👥 作者与机构

Atsumi Niwa1, Futa Mochizuki1, Raphael Berner2, Takuya Maruyama1,