Browsing NTNU Open by Author "Tominaga, Shoji"
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Appearance Reconstruction of Fluorescent Objects Based on Reference Geometric Factors
Tominaga, Shoji; Hirai, Keita; Horiuchi, Takahiko (Journal article; Peer reviewed, 2019)An approach is proposed for the reliable appearance reconstruction of fluorescent objects under arbitrary conditions of material and illuminant based on reference geometric factors. First, a large set of spectral images ... -
Appearance Reconstruction of Mutual Illumination Effect between Plane and Curved Fluorescent Objects
Tominaga, Shoji; Hirai, Keita; Horiuchi, Takahiko (Journal article; Peer reviewed, 2019)This paper considers appearance reconstruction of 3D fluorescent objects with mutual illumination effect. We examined the mutual illumination between flat plane and curved objects, by placing a cylinder on a flat plane. ... -
Bidirectional Reflectance Measurement and Reflection Model Fitting of Complex Materials Using an Image-Based Measurement Setup
Sole, Aditya Suneel; Farup, Ivar; Nussbaum, Peter; Tominaga, Shoji (Journal article; Peer reviewed, 2018)Materials with a complex visual appearance, like goniochromatic or non-diffuse, are widely used for the packaging industry. Measuring optical properties of such materials requires a bidirectional approach, and therefore, ... -
Estimation of Fluorescent Donaldson Matrices Using a Spectral Imaging System
Tominaga, Shoji; Hirai, Keita; Horiuchi, Takahiko (Journal article; Peer reviewed, 2018)The present paper proposes a method to estimate the bispectral Donaldson matrices of fluorescent objects in a scene with a spectral imaging system. Multiple ordinary light sources with continuous spectral-power distributions ... -
Evaluating an image-based bidirectional reflectance distribution function measurement setup
Sole, Aditya Suneel; Farup, Ivar; Nussbaum, Peter; Tominaga, Shoji (Journal article; Peer reviewed, 2018)We evaluate an image-based multiangle bidirectional reflectance distribution function measurement setup by comparing it to measurements from two commercially available goniospectrophotometers. The image-based setup uses ... -
Measuring, Modeling, and Reproducing Material Appearance from Specular Profile
Tominaga, Shoji; Guarnera, Giuseppe Claudio (Journal article; Peer reviewed, 2019)A method is proposed for measuring, modeling, and reproducing material appearance from the specular profile representing reflectance distribution around a specular highlight. Our method is aimed at opaque materials with a ...