Results 1 to 10 of about 61 (60)
Deep Photometric Stereo Network with Multi-Scale Feature Aggregation [PDF]
Sensors, 2020 We present photometric stereo algorithms robust to non-Lambertian reflection, which are based on a convolutional neural network in which surface normals of objects with complex geometry and surface reflectance are estimated from a given set of an ...
Chanki Yu, Sang Wook Lee
doaj +2 more sources
IEEE Access, 2023 Fatigue detection has many applications, one of them is intelligent transportation for accident prevention. It is challenging to detect driver fatigue adopting photometric stereo and 3D fatigue-related facial action unit identification.
Gulbadan Sikander +4 more
doaj +1 more source
ReDDLE-Net: Reflectance Decomposition for Directional Light Estimation
Photonics, 2022 The surfaces of real objects can visually appear to be glossy, matte, or anywhere in between, but essentially, they display varying degrees of diffuse and specular reflectance.
Jiangxin Yang +6 more
doaj +1 more source
IEEE Access, 2023 Automatic 2D vision-based defect detection on sealing nail (SealN) surfaces is challenging due to interference of complex backgrounds with non-homogeneous and low contrast between foreground and background. Inspired by an interesting observation that the
Fang Liu +5 more
doaj +1 more source
PERGAMO: Personalized 3D Garments from Monocular Video
Computer Graphics Forum, Volume 41, Issue 8, Page 293-304, December 2022., 2022 Abstract Clothing plays a fundamental role in digital humans. Current approaches to animate 3D garments are mostly based on realistic physics simulation, however, they typically suffer from two main issues: high computational run‐time cost, which hinders their deployment; and simulation‐to‐real gap, which impedes the synthesis of specific real‐world ...
Andrés Casado‐Elvira +2 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 127, Issue 3, March 2022., 2022 Abstract The ion tails of bright comets have long been considered as a natural tracers of the solar wind (SW) near these objects. Studies of comets and their ion tails allow inexpensive monitoring of key SW structures in the inner heliosphere, much of which is otherwise only accessible by in situ SW spacecraft measurements.
Yudish Ramanjooloo, Geraint H. Jones
wiley +1 more source
COMMUNITY TOOLS FOR CARTOGRAPHIC AND PHOTOGRAMMETRIC PROCESSING OF MARS EXPRESS HRSC IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 The High Resolution Stereo Camera (HRSC) on the Mars Express orbiter (Neukum et al. 2004) is a multi-line pushbroom scanner that can obtain stereo and color coverage of targets in a single overpass, with pixel scales as small as 10 m at periapsis.
R. L. Kirk +6 more
doaj +1 more source
Mercator—Independent rover localization using stereophotoclinometry and panoramic images
Earth and Space Science, Volume 3, Issue 12, Page 488-509, December 2016., 2016 Abstract We present a navigation technique for a lunar vehicle based upon matching horizon imagery with a database of synthetic panoramas generated from ultrahigh‐resolution topographic models created by stereophotoclinometry. We conducted two tests, one with lunar topography and fully synthetic panoramas, and another using Earth‐based data and actual ...
Eric E. Palmer +4 more
wiley +1 more source
Multi‐Camera Pairwise Calibration Through Joint Optimization Method
IET Image Processing, Volume 20, Issue 1, January/December 2026.We propose a novel multi‐camera calibration method for systems with non‐overlapping fields of view. By establishing local constraints between adjacent cameras and performing staged joint optimization, our approach estimates intrinsic/extrinsic parameters while dynamically selecting optimal calibration paths via camera topology graphs and confidence ...
Dongsheng Li +5 more
wiley +1 more source
Photometric-Stereo-Based Defect Detection System for Metal Parts. [PDF]
Sensors (Basel), 2022 Cao Y +6 more
europepmc +1 more source