Photometric stereo data for the validation of a structural health monitoring test rig. [PDF]
Data BriefPhotometric stereo uses images of objects illuminated from various directions to calculate surface normals which can be used to generate 3D meshes of the object.
Blair J +9 more
europepmc +2 more sources
DRM-Based Colour Photometric Stereo Using Diffuse-Specular Separation for Non-Lambertian Surfaces. [PDF]
J Imaging, 2022 This paper presents a photometric stereo (PS) method based on the dichromatic reflectance model (DRM) using colour images. The proposed method estimates surface orientations for surfaces with non-Lambertian reflectance using diffuse-specular separation ...
Li B, Furukawa T.
europepmc +2 more sources
Photometric stereo for strong specular highlights
Computational Visual Media, 2018 Photometric stereo is a fundamental technique in computer vision known to produce 3D shape with high accuracy. It uses several input images of a static scene taken from one and the same camera position but under varying illumination. The vast majority of
Maryam Khanian +2 more
doaj +3 more sources
Three-Dimensional Reconstruction from Single Image Base on Combination of CNN and Multi-Spectral Photometric Stereo. [PDF]
Sensors (Basel), 2018 Multi-spectral photometric stereo can recover pixel-wise surface normal from a single RGB image. The difficulty lies in that the intensity in each channel is the tangle of illumination, albedo and camera response; thus, an initial estimate of the normal ...
Lu L, Qi L, Luo Y, Jiao H, Dong J.
europepmc +2 more sources
RMAFF-PSN: A Residual Multi-Scale Attention Feature Fusion Photometric Stereo Network [PDF]
Photonics, 2023 Predicting accurate normal maps of objects from two-dimensional images in regions of complex structure and spatial material variations is challenging using photometric stereo methods due to the influence of surface reflection properties caused by ...
Kai Luo +4 more
doaj +2 more sources
Summary study of data-driven photometric stereo methods
Virtual Reality & Intelligent Hardware, 2020 Background: A photometric stereo method aims to recover the surface normal of a 3D object observed under varying light directions. It is an ill-defined problem because the general reflectance properties of the surface are unknown.
Qian Zheng, Boxin Shi, Gang Pan
doaj +2 more sources
Improved Visual Inspection Through 3D Image Reconstruction of Defects Based on the Photometric Stereo Technique. [PDF]
Sensors (Basel), 2019 Huang S, Xu K, Li M, Wu M.
europepmc +3 more sources
Identifying the lights position in photometric stereo under unknown lighting [PDF]
, 2021 Reconstructing the 3D shape of an object from a set of images is a classical problem in Computer Vision. Photometric stereo is one of the possible approaches.
Anna Concas +4 more
openalex +3 more sources
Stereo-photometric techniques for scanning micrometer scale
Virtual Archaeology Review, 2015 This paper describes a new methodology based on the combination of photogrammetric and stereo-photometric techniques that allows creating virtual replicas reproducing the relief in micrometric scale, with a geometric resolution until 7 microns.
Rocio Cachero, Carlota Abello
doaj +3 more sources
Universal Photometric Stereo Network using Global Lighting Contexts [PDF]
Computer Vision and Pattern Recognition, 2022 This paper tackles a new photometric stereo task, named universal photometric stereo. Unlike existing tasks that assumed specific physical lighting models; hence, drastically limited their usability, a solution algorithm of this task is supposed to work ...
Satoshi Ikehata
openalex +3 more sources