Optimization based on reconstruction of volume scattering medium parameters

Sokolov, V. G.; Zhdanov, Dmitry; Potemin, Igor S.; Barladian, Boris; Bogdanov, Nikolay

doi:10.1117/12.2312724

Cited by 6 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Apart from most of them are not fully described or used only with specific software. In this article it is used a one of more general methods close to one described in [1]. The Figure 2 shows simplified scheme of ink layer.…”

Section: Methods To Describe Volume and Surface Scattering For Inks And Paints 21 Volume Scattering Modelmentioning

confidence: 99%

“…In computer modeling, it is not a problem to place as a source of illumination as well as light detectors inside of material required for ink BSDF extraction. This process generally is described in [1]. The investigation in the given work is deeper and based on BSDF extraction of real samples with different inks characteristics including colored samples and some conclusions are different because of more detailed and practical investigations.…”

Section: Figure 1: Examples Of Ink Usage In Different Light Guiding Plates Schemesmentioning

confidence: 99%

“…The base idea of BSDF reconstruction is not new and, for example, it can be examined in [1,9,11] papers, however there are some details in simulation of Volume Scattering which it is preferable to consider with the purpose to accelerate process of BSDF extraction.…”

Section: Scheme Of Bsdf Reconstructionmentioning

confidence: 99%

See 2 more Smart Citations

BSDF Reconstruction of Inks and Paints for Light Guiding Plates

Sokolov

Potemin

Zhdanov

et al. 2021

Proceedings of the 31th International Conference on Computer Graphics and Vision. Volume 2

Self Cite

View full text Add to dashboard Cite

The work is devoted to the investigation of the best and reasonable methods to reconstruct the scattering properties of inks and paints widely used in modern electronic devices containing various light guiding plates and fibers. Typically scattering properties for inks have a volume scattering nature however it can be complicated with surface scattering because of the microroughness of ink layers. Both the volume and surface scattering reconstruction are considered in the given paper. Typically scattering properties of inks are described with bidirectional scattering functions (BSDF) and the BSDF is required from the internal side of the material of light-guiding elements. It cannot be measured directly because neither detector of the measuring device nor the light source cannot be placed inside the material. The only way to solve the problem of BSDF extraction for such cases is to build computer models of volume and surface scattering for inks and then with optimization procedures reconstruct parameters for these models which can provide surface scattering close enough to scattering of real samples of inks and paints. Light propagation in ink media is very complex requiring a long calculation time. As a result, the selection of an effective optimization procedure is the key point of the task. Several more typical real samples with printed inks are selected for investigation. The achieved results of BSDF extraction show very good agreement with data obtaining by real measurement. The comparison is based on numerical comparison of light scattering of ink samples as well as its visual appearance.

show abstract

Section: Methods To Describe Volume and Surface Scattering For Inks And Paints 21 Volume Scattering Modelmentioning

confidence: 99%

Section: Figure 1: Examples Of Ink Usage In Different Light Guiding Plates Schemesmentioning

confidence: 99%

See 1 more Smart Citation

BSDF Reconstruction of Inks and Paints for Light Guiding Plates

Sokolov

Potemin

Zhdanov

et al. 2021

Proceedings of the 31th International Conference on Computer Graphics and Vision. Volume 2

Self Cite

View full text Add to dashboard Cite

show abstract

“…It can be suggested several such methods that use different number of paint samples prepared in different conditions and process their measurements differently. Some alike fitting based methods had been used in the past to obtain scattering properties of turbid plastics [14][15][16][17]. Sometimes the results were god but sometimes the calculated BRDFs deviated much from the measured ones.…”

Section: Introductionmentioning

confidence: 99%

“…We describe their operation and compare their robustness. It happened that among 4 proposed methods one is much more accurate, while others (close to [14][15][16][17]) produced large errors in our benchmarks.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Characteristics of Solid Pigments from Paint Samples

Ershov,

Voloboy,

Pozdnyakov

2023

Proceedings of the 33rd International Conference on Computer Graphics and Vision

View full text Add to dashboard Cite

Modern automotive paints have a complex structure and consist of a variety of pigments including the solid ones. There are many tasks related to the correct color reproduction of the automotive paints. But the most practical one is the color matching: obtaining of paint composition needed to get the specified color. This task can be solved with help of lighting simulation inside paint structure. But we have to know optical properties of the paint pigments to do so. In the paper we propose and verify robustness of several different methods to extract pigment properties from the measured BRDFs. All methods are based on fitting of calculated visual appearance to the measured one. The methods differ in sets of the real paint samples which have to be prepared to extract pigment data. We describe operation of the methods and verify their robustness. It happened that among proposed methods one is much more accurate, while others produced significant errors.

show abstract