Results 201 to 210 of about 1,639,917 (250)

Beyond Lux: methods for species and photoreceptor-specific quantification of ambient light for mammals. [PDF]

BMC Biol
McDowell RJ, Didikoglu A, Woelders T, Gatt MJ, Moffatt F, Notash S, Hut RA, Brown TM, Lucas RJ.   +8 more
europepmc   +1 more source

A Rapid Grading Method for Beef Appearance Quality Based on Smartphone Imaging and ImageJ. [PDF]

Foods
Hu P, Du P, Xing Y, Li Y, Ma W, Xu W, Wang W.   +6 more
europepmc   +1 more source

Single and Multiple Illuminant Estimation Using Convolutional Neural Networks [PDF]

IEEE Transactions on Image Processing, 2017
In this paper, we present a three-stage method for the estimation of the color of the illuminant in RAW images. The first stage uses a convolutional neural network that has been specially designed to produce multiple local estimates of the illuminant ...
Raimondo Schettini, Claudio Cusano, Simone Bianco   +2 more
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Estimation of illumination for color correction

[Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991
The reproduction of color images often requires color correction. The original image may have been recorded under one illumination while the reproduction is to be viewed under another or made to appear as if it were recorded under another. Since it is often the case that the original illumination is unknown to the image scientist, it is necessary to ...
H. Joel Trussell, Michael J. Vrhel
openaire   +1 more source

Illuminant estimation for multichannel images

SPIE Proceedings, 2005
Multi-channel imaging gains more and more applications because of its advantage in better color reproduction and better spectral representation to avoid metamerism problem. Illuminant estimation for multi-channel images is not widely studied because most illuminant estimation methods are applied to trichromatic images.
Xiaoyun Jiang, Mark D. Fairchild
openaire   +2 more sources

Illumination compensation for microscope images based on illumination difference estimation

The Visual Computer, 2021
The DNA ploidy analysis which measures the relative content of DNA in cells by image processing has a wide range of applications in cancer diagnosis. However, the measured results of the same cell in different positions are different because of uneven illumination, which may reduce the measurement accuracy and the diagnosis performance.
Jun Yu, Jing Zhao, Huili Shao, Yu Lu, Yongjun He 0002, Lejun Zhang   +5 more
openaire   +1 more source

Consensus-driven illuminant estimation with GANs

Thirteenth International Conference on Machine Vision, 2021
We present a method for illuminant estimation that exploits a generative adversarial network architecture to generate a spatially-varying illuminant map. This map is then transformed by consensus into a global illuminant estimation, in the form of a single RGB triplet. To this end, different consensus strategies are designed and compared in this paper.
Buzzelli, Marco, Riva, Riccardo, Bianco, Simone, Schettini, Raimondo   +3 more
openaire   +2 more sources

A Unified Framework for Scene Illuminant Estimation

Procedings of the British Machine Vision Conference 2004, 2004
Most existing illuminant estimation algorithms work with assumptions of specific source types (e.g. directional light source or point light source). The assumptions bring up two main limitations which significantly restrict their applicabilities: first, the prior knowledge about source types is needed; second, it can not handle complex scenes where ...
Wei Zhou, Chandra Kambhamettu
openaire   +3 more sources

Face-Based Illuminant Estimation

2012
In this work we show that it is possible to use skin tones to estimate the illuminant color. We use a face detector to find faces in the scene, and the corresponding skin colors to estimate the chromaticity of the illuminant. The method, that has been presented at CVPR 2012 [1] is based on two observations: first, skin colors tend to form a cluster in ...
Simone Bianco 0001, Raimondo Schettini
openaire   +1 more source

Estimation of illuminator scintillation in laser-illuminated imagery

SPIE Proceedings, 2013
It is well known that atmospheric turbulence corrupts the phase front of laser beam propagation. The phase distortions manifest themselves as intensity fluctuations when the beam is propagated over some distance. This intensity fluctuation is often referred to as scintillation.
David C. Dayton, James B. Lasche
openaire   +1 more source