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Integrated molecular and phenotypic analysis of onion (<i>Allium cepa</i> L.) germplasm reveals limited correspondence between genetic structure and phenotypic traits. [PDF]
Front Plant SciSinkovič L +4 more
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Trait Architecture of Fruit-Panicle Economic Traits in <i>Idesia polycarpa</i> and Its Implications for Breeding. [PDF]
Plants (Basel)Xiang K +6 more
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Resolving ionic spectra of lead-halide perovskites to the nanometer.
NanoscaleĆavar LD +6 more
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Variation on Zernike’s phase-contrast microscope
Applied Optics, 2000We describe the design, construction, and testing of a variant of Zernike's phase-contrast microscope. The sample is illuminated with a white-light source through an annular aperture, which is projected onto the entrance pupil of the objective lens. In the return path the light diffracted by the sample and appearing in the interior of the objective's ...
R, Liang, J K, Erwin, M, Mansuripur
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Analysis of variations in contrast‐detail experiments
Medical Physics, 1984Three sources of variability in a contrast‐detail (CD) experiment have been quantitated: within‐observer variance, between‐observer variance, and sample variance. It is concluded that (1) it is more efficient to increase the numbers of replicated images and observers than to increase the number of readings; (2) sampling and between‐observer variations ...
G, Cohen, D L, McDaniel, L K, Wagner
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Automatic contrast enhancement by variational minimax optimization
2015 IEEE International Conference on Image Processing (ICIP), 2015We present an automatic global contrast enhancement method using variational optimization. A novel energy functional is formulated as a convex combination of histogram equalization and quadratic distortion constraint regularization. The desired image gray-level transformation is obtained through minimax optimization.
Yongjian Yu, Jue Wang 0005
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The scattering at zero angle in contrast variation
The Journal of Chemical Physics, 1991The scattering of neutrons, x-rays, or light by a polydisperse system of particles is studied. As is well known, for fixed wave vector q the scattering intensity I(q) is a quadratic function of the scattering length density of the external medium. The minimum of the parabola is the minimal scattering intensity Imin(q).
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Variational Image Fusion with Optimal Local Contrast
Computer Graphics Forum, 2015AbstractIn this paper, we present a general variational method for image fusion. In particular, we combine different images of the same subject to a single composite that offers optimal exposedness, saturation and local contrast. Previous research approaches this task by first pre‐computing application‐specific weights based on the input, and then ...
David Hafner, Joachim Weickert
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