Results 71 to 80 of about 1,123 (167)
Uncalibrated Near-Light Photometric Stereo [PDF]
Proceedings of the British Machine Vision Conference 2014, 2014 In this work we solve the uncalibrated photometric stereo problem with lights placed near the scene. We investigate different image formation models and find the one that best fits our observations. Although the devised model is more complex than its far-light counterpart, we show that under a global linear ambiguity the reconstruction is possible up ...
Thoma Papadhimitri, Paolo Favaro
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Alzheimer's &Dementia, Volume 22, Issue 5, May 2026.Abstract INTRODUCTION Clearance of cerebral Aβ was primarily mediated by the brain endothelial transporters including LRP1. The regulatory mechanism of LRP1 expression remained unclear. METHODS LRP1 in brain endothelial cells treated with pro‐CTSD were analyzed by western blot.
Zhi‐Jun Li +12 more
wiley +1 more source
3D Hair Reconstruction From Sketches Using Strand and Depth Maps
Computer Animation and Virtual Worlds, Volume 37, Issue 3, May/June 2026.Overview of the proposed sketch‐based 3D hair reconstruction pipeline. Given a user‐drawn line drawing and a hair‐region mask, our method generates two intermediate representations: A strand map that encodes hair flow, computed by diffusing stroke directions using diffusion curves, and a depth map estimated using ControlNet.
Ritsuki Ishiwata +2 more
wiley +1 more source
Differentiable Display Photometric Stereo
2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)Photometric stereo leverages variations in illumination conditions to reconstruct surface normals. Display photometric stereo, which employs a conventional monitor as an illumination source, has the potential to overcome limitations often encountered in bulky and difficult-to-use conventional setups.
Seokjun Choi +4 more
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Detail-Aware Uncalibrated Photometric Stereo
ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023 Photometric stereo is the problem of jointly inferring the 3D reconstruction, reflectance, lighting and specularities of an object from a set of visual signals. Recently, some variational, uncalibrated, unsupervised and unified formulations have provided robust solutions to the problem while reducing the prior knowledge about the shape geometry or the ...
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Modeling the Lunar Thermal Emission Phase Function With the Diviner Lunar Radiometer
Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.Abstract The lunar thermal emission phase function (EPF) describes the anisotropic variation in observed infrared emission and brightness temperature with illumination and viewing geometry. The EPF is caused by small‐scale surface roughness below the resolution of current orbital data sets.
E. Jhoti +4 more
wiley +1 more source
The Acts of Eadburg: drypoint additions to Oxford, Bodleian Library, MS Selden Supra 30
Early Medieval Europe, Volume 34, Issue 2, Page 195-230, May 2026.In 1913, two drypoint additions were identified in Oxford, Bodleian Library, MS Selden Supra 30 (SS30), an eighth‐century Southumbrian copy of the Acts of the Apostles. It was suggested that these additions, cut into the membrane of p. 47, were abbreviations of the Old English female name, Eadburg. Just over a century later, many more drypoint markings
Jessica Hendy‐Hodgkinson
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Photometric Stereo With Area Light for Object-Level Surface Reconstruction
IEEE AccessA traditional photometric stereo method estimates surface normals with point lights placed at infinity, suffering from geometric errors when the light has a planar shape and is near the object. Though the light sampling approach improves the accuracy, it
Jun Young Yoon, Joo Ho Lee
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Versatile CRISPR‐Cas Tools for Gene Regulation in Zebrafish via an Enhanced Q Binary System
Advanced Science, Volume 13, Issue 23, 23 April 2026.This study introduces CRISPR‐Q, a transgenic CRISPR‐Cas system leveraging the QFvpr/QUAS binary expression platform in zebrafish. CRISPR‐Q overcomes previous challenges in achieving stable and efficient gene regulation. By enabling precise spatiotemporal control of transcript knockdown (CRISPR‐QKD) and gene activation (CRISPR‐Qa), it provides a ...
Miaoyuan Shi +13 more
wiley +1 more source
A Robust Method for 2.5D Face Reconstruction Accelerated by GPU
工程科学与技术, 2009 :A robust method for 2.5D facial shape and texture reconstruction based-on the model of polyhedron and the technology of photometric stereo was presented. Using the continuity restrictions and error-reduced operator, the presented method can overcome the
Zhang Jun +3 more
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