Optical and Electromechanical Design and Implementation of an Advanced Multispectral Device to Capture Material...

Area of Science:

• Optics and Photonics
• Material Science
• Computer Vision

Background:

• Materials with dynamic visual properties are crucial in industries like automotive and fashion.
• Accurate material appearance measurement is vital for quality control and reducing waste.
• Existing methods for capturing Spatially Varying Bidirectional Reflectance Distribution Functions (SVBRDF) and Bidirectional Texture Functions (BTF) lack comprehensive optical design and validation.

Purpose of the Study:

• To introduce a novel multispectral image-based device for advanced material appearance measurement.
• To address the limitations in optical design, spectral channel utilization, and per-pixel calculations in existing SVBRDF and BTF measurement systems.
• To provide a validated system for objective material characterization.

Main Methods:

• Development of a compact, multispectral image-based appearance measurement device.
• Integration of a novel sample holder with a rotation table for precise angular control.
• Utilization of passive multispectral imaging to capture spectral and angular data.

Main Results:

• The designed device successfully captures angular and spectral data of material surfaces.
• Preliminary measurements demonstrate the device's capability in characterizing complex material appearances.
• The system provides a foundation for detailed analysis of SVBRDF and BTF.

Conclusions:

• The developed multispectral device offers a significant advancement in material appearance measurement.
• This technology enables more accurate soft proofing and product quality control.
• The device holds promise for deeper insights into material optical properties and applications.