公开(公告)号：US20170041589A1

公开(公告)日：2017-02-09

申请号：US15231261

申请日：2016-08-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bharat PATIL ,  Jagannathan VENKATARAMAN ,  Karthik RAJAGOPAL

IPC: H04N13/02

CPC classification number: G01S17/36 ,  G01S7/497 ,  G01S17/89

Abstract: A time-of-flight (TOF) camera system for correcting non-linearity in phase-to-depth measurements. The TOF camera system includes a module to simulate movement of a target object by generating delays between modulation signals emitted from a transmitter and demodulation signals received by a sensor. For each delay, the TOF system calculates and stores a phase output corresponding to a simulated distance of the target object. The TOF camera may consult the stored data during normal operation to perform in-field calibration.

Abstract translation: 飞行时间（TOF）相机系统，用于校正相位到深度测量中的非线性。 TOF摄像机系统包括通过在发射机发射的调制信号和由传感器接收的解调信号之间产生延迟来模拟目标物体的移动的模块。 对于每个延迟，TOF系统计算并存储对应于目标对象的模拟距离的相位输出。 在正常操作期间，TOF摄像机可以查询存储的数据，以进行现场校准。