副帧
视频阵列图形
干扰(通信)
像素
计算机科学
计算机视觉
人工智能
工件(错误)
图像传感器
过程(计算)
航程(航空)
实时计算
计算机硬件
电信
材料科学
现场可编程门阵列
操作系统
频道(广播)
电信线路
复合材料
作者
Kunihiro Hatakeyama,Yu Okubo,Tomohiro Nakagome,Masahiro Makino,Hiroshi Takashima,Takahiro Akutsu,Takehide Sawamoto,Masanori Nagase,Tatsuo Noguchi,Shoji Kawahito
出处
期刊:IEEE Journal of Solid-state Circuits
[Institute of Electrical and Electronics Engineers]
日期:2023-04-01
卷期号:58 (4): 983-992
被引量:2
标识
DOI:10.1109/jssc.2023.3238031
摘要
A new indirect time of flight (iToF) sensor realizing long-range measurement of 30 m has been demonstrated by a hybrid ToF (hToF) operation, which uses multiple time windows (TWs) prepared by multi-tap pixels and range-shifted subframes. The VGA-resolution hToF image sensor with 4-tap and 1-drain pixels, fabricated by the BSI process, can measure a depth of up to 30 m for indoor operation and 20 m for outdoor operation under high ambient light of 100 klux. The new hToF operation with overlapped TWs between subframes for mitigating an issue on the motion artifact is implemented. The sensor works at 120 frames/s for a single subframe operation. Interference between multiple ToF cameras in IoT systems is suppressed by a technique of emission cycle-time changing.
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