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VQ-based gray watermark hiding scheme and genetic index assignment
20042004
Feng-Hsing Wang +3 more
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Ultrasonographic portography with low mechanical index gray-scale imaging in hepatic VX2 tumor
Ultrasound in Medicine & Biology, 2006To evaluate the characteristics of portal blood supply of hepatic tumors by ultrasonographic portography (USP), an in vivo model was studied using SonoVue, a second-generation ultrasound contrast agent (UCA) and low mechanical index (MI), gray-scale harmonic imaging.
Jie, Li +3 more
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Index system and separability of constant weight Gray codes
IEEE Transactions on Information Theory, 1991A number system is developed for the conversion of natural numbers to the codewords of the Gray code G(n,k) of length n and weight k, and vice versa. The focus is on the subcode G(n,k) of G(n) consisting of those words of G(n) with precisely k 1-bits, 0 >
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Neuronal Density and Architecture (Gray Level Index) in the Brains of Autistic Patients
Journal of Child Neurology, 2002Although neuropathologic studies have centered on small samples, it is accepted that brains of autistic individuals tend to be large, on average. Knowledge regarding the cause of this macrocephaly is limited. Postmortem studies reveal little in terms of cortical dysplasia.
Manuel F, Casanova +3 more
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Comparison of the amniotic fluid index with gray-scale and color Doppler ultrasound
The Journal of Maternal-Fetal & Neonatal Medicine, 2003This study was undertaken to compare the amniotic fluid index (AFI) obtained with gray-scale ultrasound and color Doppler.We examined 77 patients ranging from 22 to 41 weeks' gestation with two of five sonographers obtaining two measures of the AFI utilizing gray-scale and color Doppler.Of the measurements of AFI, 96% showed the gray scale measurement ...
J W, Goldkrand +5 more
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A novel method of estimating structure model index from gray-level images
Medical Engineering & Physics, 2011According to the standard approach, estimation of the structure model index (SMI) of a trabecular bone sample has to be preceded by segmentation of the bone image and then triangulation of the trabecular surface. However, when analyzing clinical data, image segmentation should be avoided whenever possible, due to difficulties in controlling ...
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The Forecasts Performance of Gray Theory, BP Network, SVM for Stock Index
2008 International Symposium on Knowledge Acquisition and Modeling, 2008In order to evaluate the performance of several forecasts, the paper firstly uses three forecasting methods, namely grey model (GM (1,1)), BP neural networks and support vector machines (SVM), to forecast the Shanghai Industrial Index, the Shanghai Commercial Index, the Shanghai Real Estate Index, the Shanghai Public Utilities Index. Through evaluating
Fengqin Niu +2 more
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Investigation on the Index of Sniper Selection and Gray Correlation Analysis
2019There is a problem that the proportion of qualitative selection is larger than that of quantitative selection in the selection process of our army’s snipers. This research adopts the methods of questionnaire, mathematical statistics and testing, and balanced qualitative analysis and quantitative analysis to analyze the investigation and test objects ...
Zhiwei Zhu +4 more
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