Rendering iridescent colors appearing on natural objects

Hasegawa, Hideki; Yamaji, Yoshiki; Kaneda, Kazufumi; Yamashita, Hideo; Monden, Yoshimi

doi:10.1109/pccga.2000.883853

Cited by 15 publications

(12 citation statements)

References 16 publications

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“…structural color caused by thin film, multiple films, refraction, and diffraction grating. Hirayama et al [6,5] have rendered multi-film interference focusing on a physical model while Sun et al [21,20] models the micro-structure of CDs precisely and reconstruct it realistically. Using the model of refraction among water droplets, Sadeghi et al [18] have rendered a rainbow the same as a real images.…”

Section: Related Workmentioning

confidence: 99%

Reconstructing Shapes and Appearances of Thin Film Objects Using RGB Images

Kobayashi

Morimoto

Sato

et al. 2016

2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

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Reconstruction of shapes and appearances of thin film objects can be applied to many fields such as industrial inspection, biological analysis, and archaeologic research. However, it comes with many challenging issues because the appearances of thin film can change dramatically depending on view and light directions. The appearance is deeply dependent on not only the shapes but also the optical parameters of thin film. In this paper, we propose a novel method to estimate shapes and film thickness. First, we narrow down candidates of zenith angle by degree of polarization and determine it by the intensity of thin film which increases monotonically along the zenith angle. Second, we determine azimuth angle from occluding boundaries. Finally, we estimate the film thickness by comparing a look-up table of color along the thickness and zenith angle with captured images. We experimentally evaluated the accuracy of estimated shapes and appearances and found that our proposed method is effective.

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Section: Related Workmentioning

confidence: 99%

Reconstructing Shapes and Appearances of Thin Film Objects Using RGB Images

Kobayashi

Morimoto

Sato

et al. 2016

2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

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“…Icart et al (Icart and Arquès, 2000), for example, constructed a physics-based bidirectional reflectance model for multilayer systems consisting of homogeneous and isotropic thin films with rough boundaries, which can account for interference, diffraction and polarization effects. Hirayama et al (Hirayama et al, 1999;Hirayama et al, 2000;Hirayama et al, 2001) constructed a comprehensive multilayer film inter-ference model to model scattering characteristics of rough multilayer surfaces. Sun (Sun, 2006) implemented an iridescent shading process for rendering the biological iridescences of butterflies and beetles due to multilayer interference based on analytical calculation and numerical simulation.…”

Section: Related Workmentioning

confidence: 99%

“…Gondek et al (Gondek et al, 1994), for example, used a wavelength-dependent bidirectional reflectance distribution function and a virtual goniospectrophotometer to analyze and generate the reflection spectrum of thin films and pearl materials. Hirayama et al (Hirayama et al, 1999;Hirayama et al, 2000) constructed a series of multilayer dielectric and metallic film models to visualize the richer interference effects through the iterative calculation of multi-beam reflection and transmission. Sun (Sun, 2006) applied the analytical calculation and the numerical simulation methods to implement an iridescent shading process to render the biological iridescences.…”

Section: Introductionmentioning

confidence: 99%

Illumination Model for Two-layer Thin Film Structures

Zheng

2015

Proceedings of the 10th International Conference on Computer Graphics Theory and Applications

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To address the problem of visualizing the interference effects of objects with multilayer film structures such as soap bubbles, optical lenses and Morpho butterflies in the physics-based framework, a novel full-spectrum multilayer film interference method is presented. This method applies the multi-beam interference equation to effectively simulate the multiple reflection and transmission inside films, and calculate the composite reflectance and transmittance to model the amplitude and phase variations related to interference. The Fresnel coefficients used for metallic and dielectric films are introduced to explain the absorption of photons due to the film materials, and the microfacet scattering factor is also applied to simulate the complex optical effects such as the isotropic and anisotropic phenomena caused by the roughness of the surface geometry. This method is integrated into the existing ray tracer to further enhance the photorealistically rendering capabilities. The experimental results demonstrate that our method can efficiently model the phase and amplitude information of wave to generate high-quality realistic interference effects.

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“…al. [13,14] used the physics-based interference model of multi-layered film, and rendered eyeglasses and mother-of-pearl. Modeling the microstructure of CDs, Sun et.…”

Section: Related Workmentioning

confidence: 99%