Analysis of Polarization Detector Performance Parameters on Polarization 3D Imaging Accuracy

Area of Science:

• Optics and Photonics
• Computer Vision
• Metrology

Background:

• Three-dimensional (3D) reconstruction using diffuse light polarization is a key technique.
• Theoretical accuracy is high due to the polarization-zenith angle relationship.
• Practical accuracy is limited by polarization detector performance parameters.

Purpose of the Study:

• To establish mathematical models linking 3D reconstruction errors to detector parameters.
• To identify optimal detector parameters for high-accuracy polarization 3D reconstruction.
• To provide guidance for selecting polarization detectors in 3D reconstruction applications.

Main Methods:

• Developed mathematical models for polarization 3D reconstruction errors.
• Analyzed the impact of polarizer extinction ratio, installation error, full well capacity, and A2D bit depth.
• Utilized simulations to determine suitable detector performance parameters.

Main Results:

• Quantified the relationship between detector parameters and normal vector errors.
• Recommended specific performance parameters: extinction ratio ≥ 200, installation error ∈ [-1°, 1°], full well capacity ≥ 100 Ke-, and A2D bit depth ≥ 12 bits.
• Demonstrated the significance of these parameters for enhancing reconstruction accuracy.

Conclusions:

• Detector performance critically impacts polarization 3D reconstruction accuracy.
• The established models and recommended parameters offer a pathway to minimize errors.
• This research is vital for advancing the precision of polarization-based 3D imaging techniques.