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Updated: Jun 1, 2026
11:59
High-speed Particle Image Velocimetry Near Surfaces
Published on: June 24, 2013
33.7K
A 326,000 fps 640 × 480 分辨率 连续模式 超高速 全球快门 CMOS BSI 影像仪
Jean-Luc Bacq1, Mandar Thite1, Roeland Vandebriel1
1IMEC, 3001 Heverlee, Belgium.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
这项研究介绍了一种超高速的CMOS图像传感器,用于32.6万/秒的连续运动捕捉. 新的像素和电路设计使高率和精确的全球快门性能成为可能.
科学领域:
- 电子 电子 电子 电子 电子 电子 电子
- 图像传感器 图像传感器
- 半导体设备 半导体设备
背景情况:
- 高速成像需要先进的传感器技术.
- 现有的传感器在率和快门精度方面面临限制.
- 持续的运动捕捉需要快速而精确的数据采集.
研究的目的:
- 开发一种超高速的单立体全球快门CMOS图像传感器.
- 为了实现 326,000 /秒 (fps) 的连续运动捕捉.
- 通过新的像素和电路技术来提高性能.
主要方法:
- 使用一个高度敏感的后侧照明 (BSI) 像素与一个完全耗尽的基板.
- 实现了用于管道读取输出的像素内电压模式存储.
- 采用像素内模拟关联双采样 (CDS) 用于低噪音.
- 使用并行ADC和双读输出,实现了相当于6.4ns的行时间.
- 确保了独立排列驱动器的全球快门精度和59秒的最低曝光时间.
- 通过芯片内固定模式噪声 (FPN) 降低和基于PTC的数据压缩,增强动态范围.
主要成果:
- 经过证明的连续运动捕捉速度为3.26万/秒,分辨率为640×480.
- 实现了 100 Gigapixels/sec 的传感器吞吐量.
- 在芯片外传输数据,使用128个CML频道,每个频道的速度为6.6Gbps.
- 使用130nm单质CMOS图像传感器 (CIS) 工艺制造,并进行BSI后处理.
结论:
- 开发的传感器可以实现前所未有的超高速连续运动捕捉.
- 这种新的设计克服了以前在率和快门性能方面的限制.
- 该传感器适用于需要高速成像的苛刻应用,并处于批量生产阶段.
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