Teleidoscopic Imaging System for Microscale 3D Shape Reconstruction

R Kawahara, MYJ Kuo… - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
This paper proposes a practical method of microscale 3D shape capturing by a
teleidoscopic imaging system. The main challenge in microscale 3D shape reconstruction is …

Full-dimensional sampling and analysis of BSSRDF

C Inoshita, S Tagawa, MA Mannan… - Information and Media …, 2013 - jstage.jst.go.jp
Full-dimensional (8-D) BSSRDF completely expresses the various light interactions on
object surface such as reflection and subsurface scattering. However, it is difficult to sample …

Ultra-shallow DoF imaging using faced paraboloidal mirrors

R Nishi, T Aoto, N Kawai, T Sato, Y Mukaigawa… - Computer Vision–ACCV …, 2017 - Springer
We propose a new imaging method that achieves an ultra-shallow depth of field (DoF) to
clearly visualize a particular depth in a 3-D scene. The key optical device consists of a pair …

[PDF][PDF] A Novel Catadioptric Ray-Pixel Camera Model and its Application to 3D Reconstruction

R Kawahara - 2019 - repository.kulib.kyoto-u.ac.jp
Ryo Kawahara Abstract 3D shape acquisition is an important issue of Computer Vision
research. As a visual system, Catadioptric Vision System utilizes lens refraction and mirror …

Measurement and Computation Techniques for 8-D reflectance field

S Tagawa, Y Mukaigawa, Y Yagi - 情処研報CVIM, 2013 - ipsj.ixsq.nii.ac.jp
The appearance of an object depends on its photometric properties: the reflectance,
illumination, and observation. Of the three factors that control appearance, reflectance is the …

Shape from Scattering: Shape Estimation for Translucent Objects Based on Light Transport Analysis

C Inoshita, Y Mukaigawa, Y Matsushita… - 情報処理学会研究報告 …, 2015 - ipsj.ixsq.nii.ac.jp
Accurate shape measurement has a long history in computer vision yet still remains a
challenging task. In particular, a translucent object is one of the most difficult targets because …

[PDF][PDF] Shape from Scattering: Shape Estimation Based on Light Transport Analysis in Translucent Objects

井下智加, イノシタチカ - 2015 - ir.library.osaka-u.ac.jp
The acquisition of object shapes has various industrial applications, such as the visual
inspection of industrial products, reverse engineering of free-form products, and modeling of …

[PDF][PDF] 正対する放物面鏡を利用した狭被写界深度撮影システム

西諒一郎, ニシリョウイチロウ - 2017 - naist.repo.nii.ac.jp
Abstract Shallow DoF (Depth-of-Field) imaging highlights a target in a photograph by de-
focusing undesired objects that exist outside a certain depth range. It can be used for …

汎光線時空間映像学: 4. 光線計測に基づくコンピュテーショナルフォトグラフィ

向川康博 - 情報処理, 2016 - ipsj.ixsq.nii.ac.jp
論文抄録 ディジタルカメラは日々進化を続けているが, 撮影の原理自体はフィルムカメラと大きくは
変わっていない. 一方, カメラによる撮影の過程に演算を導入することで, カメラの光学的な性能限界 …

2 見たいものだけを鮮明に見せるコンピュテーショナルフォトグラフィ技術

向川康博 - 映像情報メディア学会誌, 2013 - jstage.jst.go.jp
古来より, 人間は見えないものをなんとかして見ようとさまざまな工夫を凝らしてきた.
見えない理由はさまざまで, 例えば, 小さすぎて見えない, 遠すぎて見えない, あるいは何かに遮られ …