Measurement Linearity and Accuracy Optimization for Time-of-Flight Range Imaging Cameras
- Resource Type
- Conference
- Authors
- Li, Liwu; Liu, Hongwei; Xu, Yuan; Zheng, Yanghao
- Source
- 2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference (ITNEC) Automation Control Conference (ITNEC), 2020 IEEE 4th Information Technology, Networking, Electronic and. 1:520-524 Jun, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Engineering Profession
Robotics and Control Systems
Signal Processing and Analysis
Temperature measurement
Solid modeling
Semiconductor device measurement
Three-dimensional displays
Linearity
Cameras
Real-time systems
Time-of-Flight
Camera
ZYNQ
Calibration
Harmonic cancellation
- Language
Time-of-flight (TOF) range imaging is a new method for 3d measurement and modeling in many scenarios. The time-of-flight imaging system using amplitude modulated continuous wave (AMCW) technology often suffers from measurement non-linearity because of aliasing harmonics, and temperature changes. It is required to correct these errors by using calibration. We demonstrate a correction method based on Delay Line (DLL). The proposed method has advantages of operation simplicity, fast calibration time. The experimental results show that the method can improve the linearity and accuracy of the TOF camera.