Luan, Xuming: Experimental investigation of photonic mixer device and development of TOF 3D ranging Ssystems based on PMD technology. 2001
Inhalt
- Content
- Abstract
- Kurzfassung
- Introduction
- The optical 3D measurement systems
- Photonic Mixer Device (PMD)
- General description of PMD principle
- PMD charge transfer process
- Transfer characteristic and frequency limitations of the PMD
- Readout technique of PMD
- Measurement of the phase and TOF information using PMD
- Characterization of PMD pixel performance
- Measurement setup, expectations and predictions
- The spectral responsivity
- Transfer characteristic of PMD
- Modulation contrast and dynamic range of PMD
- Frequency characteristic of PMD
- Influence of the optical intensity on the PMD performance
- The correlation characteristic of PMD
- Lateral effect and unsymmetrical modulation of PMD
- Noise performance and dynamic range
- Influence of the background illumination
- Non-linearity measurement
- Correlated balance sampling (CBS)
- 3D-Imaging cameras based on PMD
- System architecture of the PMD ranging cameras
- Optical modulation unit
- PMD front end module
- Phase shifting unit
- Timing control and data processing module
- Optical aspect of illumination
- Phase shift technique
- Data processing
- Frame synchronization and data buffering
- Distance evaluation algorithm
- Data filtering and thresholding
- Sub-sampling technique and adaptive integration control
- 2D Range measurement
- 3D range measurement
- The measurement accuracy and error compensation
- Distance accuracy of the system
- Distance reference technique
- Non-linearity error and phase shifting evaluation
- 3D data calibration
- Smearing effect and the depth of field
- Discussion
- Summary and perspective