An Over 120dB Simultaneous-Capture WideDynamic-Range 1.6e- Ultra-Low-Reset-Noise Organic-Photoconductive-Film CMOS Image Sensor

📋 论文概要

本文提出了一种采用有机光电导薄膜的CMOS图像传感器，实现了超过120dB的宽动态范围和1.6e-的超低复位噪声，解决了传统图像传感器在动态范围和色彩还原方面的不足。

💡 主要创新点

• 采用有机光电导薄膜替代传统硅光电二极管，显著提升动态范围至120dB以上。
• 通过超低复位噪声设计，将噪声降低至1.6e-，改善弱光性能。
• 实现同时捕获宽动态范围图像，无需多帧曝光或横向溢出积分电容等复杂技术。

🏷 关键词

📄 原文摘要

Masaaki Yanagida, Tokuhiko Tamaki, Masayuki Takase, Hidenari Kanehara, Masashi Murakami, Yasunori Inoue Panasonic, Moriguchi, Japan Image sensors are increasingly becoming key devices for various applications (in-vehicle, surveillance, medical, and so on). To realize the best possible imaging and sensing performance, there is growing demand for extended dynamic range that can precisely reproduce color tone. Several conventional papers have described methods for enhancing dynamic range, such as multiple exposures in a frame [1] and a lateral overflow integration capacitor [2,3]. However, all these techniques realize a 100-to-200dB dynamic range by synthesizing multiple exposures, with asynchronism between multiple exposures causing time distortion. Thus, a simultaneous-capture wide dynamic range (SCWDR) over 100dB is desired. To solve this problem, we develop a CMOS image sensor that has a 123.8dB

👥 作者与机构

Kazuko Nishimura, Yoshihiro Sato, Junji Hirase, Ryota Sakaida,