What is learned in deep uncalibrated photometric stereo?

G Chen, M Waechter, B Shi, KYK Wong… - Computer Vision–ECCV …, 2020 - Springer
This paper targets at discovering what a deep uncalibrated photometric stereo network
learns to resolve the problem's inherent ambiguity, and designing an effective network …

Patch-based uncalibrated photometric stereo under natural illumination

H Guo, Z Mo, B Shi, F Lu, SK Yeung… - … on Pattern Analysis …, 2021 - ieeexplore.ieee.org
This paper presents a photometric stereo method that works with unknown natural
illumination without any calibration objects or initial guess of the target shape. To solve this …

DarkGS: Learning Neural Illumination and 3D Gaussians Relighting for Robotic Exploration in the Dark

T Zhang, K Huang, W Zhi… - arXiv preprint arXiv …, 2024 - arxiv.org
Humans have the remarkable ability to construct consistent mental models of an
environment, even under limited or varying levels of illumination. We wish to endow robots …

A calibration method for LED point light sources in near-field photometric stereo

R Wang, J Yu, X Zhang, Q Tang… - … Conference on Optical …, 2024 - spiedigitallibrary.org
In near-field photometric stereo vision, the accurate calibration of the light source position
directly affects the precision of the reconstruction results. Traditional calibration techniques …

Measuring and understanding light in real life scenarios

T Tsesmelis - 2019 - iris.univr.it
Lighting design and modelling (the efficient and aesthetic placement of luminaires in a
virtual or real scene) or industrial applications like luminaire planning and commissioning …

Light Pose Calibration for Camera-light Vision Systems

Y Song, F Elibol, M She, D Nakath, K Köser - arXiv preprint arXiv …, 2020 - arxiv.org
Illuminating a scene with artificial light is a prerequisite for seeing in dark environments.
However, nonuniform and dynamic illumination can deteriorate or even break computer …

Photometry

K Ikeuchi, Y Matsushita, R Sagawa, H Kawasaki… - Active Lighting and Its …, 2020 - Springer
Active-lighting sensors project light onto target objects or the scenes to obtain photometric
measurements of the reflected light, including travel time and return angle. Therefore …

[PDF][PDF] Optimisation Methods in Geometric Vision

TJ Chin, A Eriksson, Y Matsushita - 2019 - shonan.nii.ac.jp
1.1 Technical abstract Computer vision is concerned with inferring properties of the world
from observations in the form of visual images. Such inverse problems typically take shape …