Results 31 to 40 of about 1,741,443 (291)
Estimation of illumination characteristics [PDF]
IEEE Transactions on Image Processing, 2001 The description of the relation between the one-parameter subgroups of a group and the differential operators in the Lie-algebra of the group is one of the major topics in Lie-theory. We use this framework to derive a partial differential equation which describes the relation between the time-change of the spectral characteristics of the illumination ...
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Differences in illumination estimation in #thedress
Journal of Vision, 2017 We investigated whether people who report different colors for #thedress do so because they have different assumptions about the illumination in #thedress scene. We introduced a spherical illumination probe (Koenderink, Pont, van Doorn, Kappers, & Todd, 2007) into the original photograph, placed in fore-, or background of the scene and—for each ...
Toscani, Matteo +3 more
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Illumination invariance and shadow compensation via spectro-polarimetry technique [PDF]
, 2013 A major problem for obtaining target reflectance via hyperspectral imaging systems is the presence of illumination and shadow effects. These factors are common artefacts, especially when dealing with a hyperspectral imaging system that has sensors in the
Jackman, James +6 more
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IEEE Access, 2020 In the human and computer vision, color constancy is the ability to perceive the true color of objects in spite of changing illumination conditions. Color constancy is remarkably benefitting human and computer vision issues such as human tracking, object
Ho-Hyoung Choi, Byoung-Ju Yun
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Retinex Low-Illumination Image Enhancement Algorithm Based on Light Image Estimation [PDF]
Jisuanji gongcheng, 2021 The images collected in low-illumination environment are limited in the contrast, and suffer from detail loss and noise interference.To address the problem, a Retinex-based method is proposed to improve illumination map estimation and realize low ...
HAN Mengyan, LI Liangrong, JIANG Kai
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Video-Based Illumination Estimation [PDF]
, 2011 One possible solution to estimating the illumination for color constancy and white balance in video sequences would be to apply one of the many existing illumination-estimation algorithms independently to each video frame. However, the frames in a video are generally highly correlated, so we propose a video-based illumination-estimation algorithm that ...
Ning Wang +3 more
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Local estimations of Monte Carlo method with the object spectral representation in the solution of global illumination [PDF]
Компьютерные исследования и моделирование, 2012 The article deals with the local and double local estimation of the Monte Carlo method for solving the equation of global illumination. The local estimation allows calculating the illumination at any point at the approximation of diffuse reflection ...
Vladimir Pavlovich Budak +2 more
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Quantum Estimation Methods for Quantum Illumination [PDF]
Physical Review Letters, 2017 Published ...
Sanz, M. +4 more
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Unsupervised deep homography with multi‐scale global attention
IET Image Processing, 2023 Homography estimation serves an important role in many computer vision tasks. Depending heavily on hand‐craft feature quality, traditional methods degenerate sharply in scenes with low texture.
Wei Hu, Chu He, Mingyuan Lin, Haoyu Zhou
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3D Imaging With Moving Fringe Structured Illumination Microscopy
IEEE Photonics Journal, 2022 Structured Light Illumination Microscopy (SIM) has proved itself as a very effective method to improve the resolution of a widefield (WF) fluorescent microscope. In this paper, we demonstrate a new approach to three-dimensional (3D) imaging with the SIM,
Alexandr Melnikov, Daniel P.-K. Lun
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