Results 41 to 50 of about 1,741,443 (291)
Rehabilitating the ColorChecker Dataset for Illuminant Estimation [PDF]
Color and Imaging Conference, 2018 4 pages, 3 figures, 2 tables, Proceedings of the 26th Color and Imaging ...
Ghalia Hemrit +7 more
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The bright-chromagenic algorithm for illuminant estimation [PDF]
Color and Imaging Conference, 2007 This article proposes a new algorithm for illuminant estimation based on the concept of chromagenic color constancy, where two pictures are taken from each scene: A normal one and one where a colored filter is placed in front of the camera. The basic formulation of the chromagenic algorithm has inherent weaknesses, namely, a need for perfectly ...
Fredembach, Clément, Finlayson, Graham
openaire +4 more sources
Segmentation and Estimation of Spatially Varying Illumination [PDF]
IEEE Transactions on Image Processing, 2014 In this paper, we present an unsupervised method for segmenting the illuminant regions and estimating the illumination power spectrum from a single image of a scene lit by multiple light sources. Here, illuminant region segmentation is cast as a probabilistic clustering problem in the image spectral radiance space.
Gu, Lin +2 more
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Human temporal perception and the circadian system : effects of age, sleep pressure and light [PDF]
, 2011 Our intention with this work was to examine cognitive aspects of temporal regulation in humans and delineate possible connections to the circadian and sleep homeostatic systems.
Späti, Jakub
core +1 more source
CNN-Based Illumination Estimation with Semantic Information
Applied Sciences, 2020 For more than a decade, both academia and industry have focused attention on the computer vision and in particular the computational color constancy (CVCC).
Ho-Hyoung Choi +2 more
doaj +1 more source
A Line Segment Detector for Space Target Images Robust to Complex Illumination
Aerospace, 2023 The relative pose estimation of the space target is indispensable for on-orbit autonomous service missions. Line segment detection is an important step in pose estimation.
Xingxing Zhang +5 more
doaj +1 more source
LAE-GAN-Based Face Image Restoration for Low-Light Age Estimation
Mathematics, 2021 Age estimation is applicable in various fields, and among them, research on age estimation using human facial images, which are the easiest to acquire, is being actively conducted.
Se Hyun Nam +5 more
doaj +1 more source
Optimization algorithm for low‐light image enhancement based on Retinex theory
IET Image Processing, 2023 To improve the visual quality of low‐light images and discover hidden details in images, an image enhancement algorithm is proposed, which is based on a fast and robust fuzzy C‐means (FRFCM) clustering algorithm combined with Retinex theory.
Jie Yang +5 more
doaj +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Homogeneous LED-illumination using microlens arrays
, 2022 S.188-196Efficient homogeneous illumination of rectangular or circular areas with LEDs is a promising application for double-sided microlens arrays.
Dannberg, P. +3 more
core +1 more source