一个六拍720 × 488像素短脉冲间接飞行时间图像传感器,用于100米户外测量
Koji Itaba1, Kamel Mars2,3, Keita Yasutomi2
1Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8011, Japan.
Sensors (Basel, Switzerland)
|January 10, 2026
概括
这项研究引入了一种新的短脉冲间接飞行时间 (SP-iToF) 图像传感器,用于远程,高分辨率的距离测量. 它可以实现高达100米的准确深度成像,具有较高的环境光耐受性.
科学领域:
- 光电学是指光电子产品.
- 图像传感技术的技术.
- 计算成像技术的成像
背景情况:
- 传统的飞行时间传感器与环境光线和范围的限制作斗争.
- 高分辨率,远程距离测量需要先进的传感器设计.
- 间接飞行时间 (iToF) 提供了提高性能的潜力,但面临着挑战.
研究的目的:
- 开发和展示一种新的短脉冲间接飞行时间 (SP-iToF) 图像传感器.
- 为了实现远程,高分辨率的距离测量,提高了对环境光的耐受性.
- 为了实现高率的实时深度成像.
主要方法:
- 使用了720 × 488分辨率的SP-iToF图像传感器,通过前侧照明 (FSI) 通过六次点击,一次排水像素.
- 实现了每个子的30相解调,使用6个点击像素和5个范围移动的子读数.
- 采用高速柱平行12位循环ADC来快速采集子信号 (4.38毫秒).
主要成果:
- 在20ns光脉冲宽度下实现了90%以上的解调对比.
- 启用了每秒10 (fps) 的深度图像率.
- 在100克卢克的照明下,在1%以下的深度噪声下,证明了高达100米的精确距离测量.
结论:
- 开发的SP-iToF传感器克服了环境光的局限性,可以进行可靠的距离测量.
- 高速读取和多相解调是实现高率和精度的关键.
- 这项技术可以在具有挑战性的照明条件下实现实际的远程,高分辨率的深度传感.
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