Results 41 to 50 of about 153,707 (188)
Learning conditional photometric stereo with high-resolution features
Computational Visual Media, 2021 Photometric stereo aims to reconstruct 3D geometry by recovering the dense surface orientation of a 3D object from multiple images under differing illumination.
Yakun Ju +4 more
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Dynamic Photometric Stereo [PDF]
, 2005 A new dynamic photometric stereo technique is presented, which facilitates the analysis of rapidly moving surfaces containing mixed two- and three-dimensional concomitant features. A new approach termed narrow infra-red photometric stereo (NIRPS) is described as an evolution of the existing photometric stereo (PS) technique.
Melvyn L. Smith, Lyndon N. Smith
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Machines, 2022 High-quality reconstruction of polished surfaces is a promising yet challenging task in the industrial field. Due to its extreme reflective properties, state-of-the-art methods have not achieved a satisfying trade-off between retaining texture and ...
Yanlong Cao +5 more
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3D DIGITIZATION OF HERITAGE: PHOTOMETRIC STEREO CAN HELP [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 There are mainly two families of photographic 3D reconstruction. Photogrammetry techniques work according to the principle of triangulation, from the matching of different views, while photometric techniques link the appearance of a 3D point to the ...
J. Mélou +4 more
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RMAFF-PSN: A Residual Multi-Scale Attention Feature Fusion Photometric Stereo Network
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
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Photometric stereo for 3D face reconstruction using non-linear illumination models [PDF]
, 2016 Face recognition in presence of illumination changes, variant pose and different facial expressions is a challenging problem. In this paper, a method for 3D face reconstruction using photometric stereo and without knowing the illumination directions and ...
Gkelias, Athanasios +8 more
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FCN-Based 3D Reconstruction with Multi-Source Photometric Stereo
Applied Sciences, 2020 As a classical method widely used in 3D reconstruction tasks, the multi-source Photometric Stereo can obtain more accurate 3D reconstruction results compared with the basic Photometric Stereo, but its complex calibration and solution process reduces the ...
Ruixin Wang +4 more
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A New Perspective on Uncalibrated Photometric Stereo [PDF]
, 2013 We investigate the problem of reconstructing normals, albedo and lights of Lambertian surfaces in uncalibrated photometric stereo under the perspective projection model. Our analysis is based on establishing the integrability con-straint.
Thoma Papadhimitri +3 more
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Perspective Photometric Stereo with Shadows [PDF]
, 2013 High resolution reconstruction of 3D surfaces from images remains an active area of research since most of the methods in use are based on practical assumptions that limit their applicability. Furthermore, an additional complication in all active illumination 3D reconstruction methods is the presence of shadows, whose presence cause loss of information
Roberto Mecca +3 more
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Photometric stereo for outdoor webcams [PDF]
2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012 We present a photometric stereo technique that operates on time-lapse sequences captured by static outdoor webcams over the course of several months. Outdoor webcams produce a large set of uncontrolled images subject to varying lighting and weather conditions. We first automatically select a suitable subset of the captured frames for further processing,
Jens Ackermann +3 more
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