Results 11 to 20 of about 5,432,959 (167)
Contrasting a Misinterpretation of the Reverse Contrast [PDF]
Vision, 2020 The reverse contrast is a perceptual phenomenon in which the effect of the classical simultaneous lightness contrast is reversed. In classic simultaneous lightness contrast configurations, a gray surrounded by black is perceived lighter than an identical gray surrounded by white, but in the reverse contrast configurations, the perceptual outcome is the
Tiziano Agostini +4 more
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Contrasting the landscape of contrastive and non-contrastive learning
CoRR, 2022 A lot of recent advances in unsupervised feature learning are based on designing features which are invariant under semantic data augmentations. A common way to do this is contrastive learning, which uses positive and negative samples. Some recent works however have shown promising results for non-contrastive learning, which does not require negative ...
Ashwini Pokle +3 more
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Contrastive Markers in Contrast [PDF]
Discours, 2019 Contrastive markers are one of the richest groups of discourse markers in Romance languages. There are several conjunctions and other connectives that can express various types of contrast both at the text level and at the sentence level.
Cuenca, MJ, Postolea, S, Visconti, J
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IEEE Access, 2021 A fusion algorithm is proposed for the restoration and enhancement of underwater images. Color balance, contrast optimization and histogram stretching are carried out. To alleviate the effect of color shift in an underwater image, the scalar values of R,
Weilin Luo, Shunqiang Duan, Jiwen Zheng
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Crystal structure of diethyl 3,3′-[(4-nitrophenyl)methylene]bis(1H-indole-2-carboxylate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 In the title compound, C29H25N3O6, the mean planes of the two indole ring systems (r.m.s. deviations = 0.0115 and 0.0082 Å) are approximately perpendicular to one another, making a dihedral angle of 89.7 (5)°; the benzene ring is twisted with respect to ...
Hong-Shun Sun +4 more
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Journal of Ophthalmic & Vision Research, 2022 Purpose: To assess the impact of color and polarity in predicting the changes of visual resolution for different text backgrounds with increasing contrast ratios.
Ai-Hong Chen, Nurulain Muhamad
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A Comparative Study of Antegrade Air Pyelogram and Retrograde Air Pyelogram for Initial Puncture Access during Percutaneous Nephrolithotomy [PDF]
Journal of Clinical and Diagnostic Research, 2017 Introduction: Access into the collecting system is considered to be the most critical step for Percutaneous Nephrolithotomy (PCNL). Aim: The present study provides a comparative view into antegrade air pyelography and retrograde air pyelography ...
Dharmendra K. Jangid +4 more
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Crystal structure of diethyl 3,3′-[(2-fluorophenyl)methylidene]bis(1H-indole-2-carboxylate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 In the title compound, C29H25FN2O4, the mean planes of the two indole ring systems (r.m.s. deviations = 0.1392 and 0.0115 Å) are approximately perpendicular to one another, subtending a dihedral angle of 86.0 (5)°; the benzene ring is twisted with ...
Xin-Hua Lu +4 more
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Scientific Reports, 2020 Gadolinium based contrast agents (GBCAs) are widely used in clinical MRI since the mid-1980s. Recently, concerns have been raised that trace amounts of Gadolinium (Gd), detected in brains even long time after GBCA application, may cause yet unrecognized ...
Johanna Habermeyer +14 more
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Терапевтический архив, 2021 Nowadays, taking into account the number of elderly patients with sеveral associated diseases requiring percutaneous transluminal balloon coronary angioplasty (PTCA), the risk of the development of unwanted complications is also growing.
Olga A. Dmitrieva +5 more
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