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Digitizing translucent object appearance by validating computed optical properties.

Duc Minh Tran, Mark Bo Jensen, Pablo Santafé-Gabarda

|June 10, 2024

Summary

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This study presents a new method for digitizing translucent objects to capture their optical properties for realistic rendering. The approach ensures accurate digital twins by comparing simulations with real-world measurements.

Area of Science:

Computer Graphics
Material Science
Optical Engineering

Background:

Current methods for capturing object optical properties are often incomplete for photorealistic rendering.
Digitizing translucent objects for accurate appearance prediction remains a challenge.

Purpose of the Study:

To propose a procedure for digitizing translucent objects with sufficient optical information for predictive rendering.
To develop a method for creating accurate digital twins of objects for photorealistic visualization.

Main Methods:

Computing optical properties based on object material descriptions.
Validating and adjusting object appearance models using spectrophotometric measurements of the bidirectional scattering-surface reflectance distribution function (BSSRDF).
Utilizing an efficient simulation tool to compute BSSRDF for specific light-view configurations.

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Main Results:

An efficient simulation tool was developed to compute BSSRDF, aiding in the assessment of optical properties.
The procedure allows for the creation of digital twins with validated optical properties.
Photorealistic rendering was achieved by comparing digital twin appearance with physical object photographs.

Conclusions:

The proposed procedure enables the creation of digital twins with sufficient optical data for accurate appearance prediction.
The method validates object appearance models through a combination of BSSRDF simulation and real-world rendering comparisons.
This work advances the field of photorealistic rendering for translucent objects.