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A Hybrid ToF Image Sensor for Long-Range 3D Depth Measurement Under High Ambient
一种新型混合飞行时间传感器实现30米长距离3D深度测量，适用于高环境光条件。
VGA分辨率，4-tap和1-drain像素，120帧/秒（单子帧操作），室内30米/室外20米（100 klux环境光）
混合飞行时间长距离测距高环境光多时间窗口运动伪影抑制
▸混合ToF操作（hToF）结合多时间窗口和范围偏移子帧
▸重叠时间窗口减少运动伪影
▸发射周期变化技术抑制多ToF相机干扰
Abstract
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 T