Microfacet BSDFs Generated from NDFs and Explicit Microgeometry

Ribardière, Mickaël; Bringier, Benjamin; Simonot, Lionel; Méneveaux, Daniel

doi:10.1145/3338697

Cited by 20 publications

(16 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have very advanced techniques for Monte Carlo ray tracing [NGHJ18, NDVZJ19]. On the other hand, we only just started looking into inverse techniques for reconstructing microgeometry [JMM09, RBSM19], and this work does not exploit the field models. We so far seem to use the field models only as forward models, perhaps with the important exception of procedural models that generate new similar normal distributions [DWMG15, KHZ∗19].…”

Section: Discussionmentioning

confidence: 99%

Survey of Models for Acquiring the Optical Properties of Translucent Materials

Frisvad

Jensen²,

Madsen³

et al. 2020

Computer Graphics Forum

View full text Add to dashboard Cite

The outset of realistic rendering is a desire to reproduce the appearance of the real world. Rendering techniques therefore operate at a scale corresponding to the size of objects that we observe with our naked eyes. At the same time, rendering techniques must be able to deal with objects of nearly arbitrary shapes and materials. These requirements lead to techniques that oftentimes leave the task of setting the optical properties of the materials to the user. Matching the appearance of real objects by manual adjustment of optical properties is however nearly impossible. We can render objects with a plausible appearance in this way but cannot compare the appearance of a manufactured item to that of its digital twin. This is especially true in the case of translucent objects, where we need more than a goniometric measurement of the optical properties. In this survey, we provide an overview of forward and inverse models for acquiring the optical properties of translucent materials. We map out the efforts in graphics research in this area and describe techniques available in related fields. Our objective is to provide a better understanding of the tools currently available for appearance specification when it comes to digital representations of real translucent objects.

show abstract

Section: Discussionmentioning

confidence: 99%

Survey of Models for Acquiring the Optical Properties of Translucent Materials

Frisvad

Jensen²,

Madsen³

et al. 2020

Computer Graphics Forum

View full text Add to dashboard Cite

show abstract

“…Advances in Mathematical Physics such as complex background fusion, unreasonable parameter settings, or excessive perspective deformation [10]. In the practical application environment, not only the background of the image is complex but also the foreground is affected by different lighting conditions.…”

Section: Current Status Of Researchmentioning

confidence: 99%

Automatic Recognition of Financial Instruments Based on Anisotropic Partial Differential Equations

Pan

Chen

Zhang

2021

Advances in Mathematical Physics

View full text Add to dashboard Cite

In this paper, anisotropic partial differential equations are used to conduct an indepth study and analysis of automatic recognition of financial bills. Firstly, it obtains the invoices of the group enterprise, uses scanning technology and related image recognition technology to capture, process, compress and slice the paper bill content, and then carries out data identification and verification of the image. It classifies the obtained electronic data information into bills, converts it into electronic information related to bills according to the corresponding categories of the bill template, and stores it in the bill table of the database to achieve the management operation of formatted electronic files. After categorizing the bills according to the electronic information of bills to match the business scenarios, financial journal vouchers can be generated according to the preconfigured voucher templates of the corresponding business scenarios, and the financial journal vouchers are converted into voucher messages using XML technology. Finally, we use agent technology to design middleware for heterogeneous financial systems to realize the function of communicating voucher messages to each other in different business systems. The system automatically extracts the key information of invoices through OCR technology and performs real-time verification and cyclical feedback to the verification results to the suppliers. The system has realized the intelligent management of the power company’s VAT invoices, thus greatly enhancing the efficiency of VAT invoice verification and settlement. The automatic tax invoice recognition system adopts a network structured tax invoice recognition model, which eliminates the cumbersome steps of character decomposition and character classification in traditional OCR character recognition. After several trials, it has obtained better experimental results in terms of recognition accuracy, with an accuracy rate of over 93% in the recognition of tax invoice data set.

show abstract

“…Ashikhmin and Premože [2007] extracted the NDF from measured BRDFs. The technique was extended by and Ribardière et al [2019]. None of them can solve the multiple-bounce issue of the microfacet model.…”

Section: Related Workmentioning

confidence: 99%