Light field reconstruction for estimating shape and BRDF

2017 Fiscal Year Final Research Report

• Project/Area Number: 26700013
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Perceptual information processing
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: Funatomi Takuya 奈良先端科学技術大学院大学, 情報科学研究科, 准教授 (20452310)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 計測工学 / コンピュータビジョン / 反射特性解析

Outline of Final Research Achievements

We aim to simultaneously estimate object's shape and BRDF by reconstructing light field of incident and reflected rays from scattered light in participating media. As well as X-ray computed tomography, we observed the scattered light by moving a camera around the subject. However, different from X-ray CT, it is required to care about the anisotropy of the scattering in tomography. Thus, we have developed methods to measure a phase function of the scattering media, appropriate optical density where single scattering is dominant, and reconstruct the light field from the observation where the scattering is anisotropy to simultaneously estimate the shape and BRDF of the subject.

Free Research Field

コンピュータビジョン