Table 1 Experimental equipment specifications.
Equipment | Key parameters | Manufacturer | Notes |
|---|---|---|---|
Rotary lens stage | ZZX-4.0 | Jiangcai | Supports and adjusts the polarization angle of linear polarizing filters. |
Equipped with a graduated angular scale for manual continuous rotation (± 180°). | |||
Linear polarizing filter | Diameter: 100 mm (linear polarization) | Yicheng | Provides polarized filtering of incident light for stereo cameras. |
Suppresses specular reflections based on Fresnel reflection laws | |||
Stereo camera | Resolution: 2560 × 720 pixels Baseline: 65 mm Focal length: 2.1 mm Field of view (FOV): 100° | HBVCAM | Captures polarization-filtered binocular images. |
Delivers raw data for disparity calculation | |||
Laptop | CPU: i5-7300HQ, RAM: 8GB | Lenovo Thinkpad | Generates dense 3D point clouds from depth maps. |
Implements triangulation-based reconstruction | |||
Data cable | Usb3.0, length: 1 m | UGREEN | Transmits synchronized image data between sensors and laptop. |
Bandwidth: 5 Gbps (ensures real-time processing). | |||
High-precision lux meter | Measurement range: 0–200,000 lx | GREEN | Quantifies ambient illumination intensity (0–200,000 lx) |
Adjustable light source | Luminous flux: 520 lm color rendering index (CRI): Ra90 | MIJIA | Simulates variable-intensity ambient lighting |
Mapping target | Mapping target: surface materials: plastic, metal, wood, ceramic edge length: 100 mm | Validates method effectiveness under contrasting surface properties: | |
Wood: low reflectivity, diffuse-dominated reflections. | |||
Metal: high reflectivity, specular-dominated reflections |
