نتایج جستجو برای: object scatter
تعداد نتایج: 310250 فیلتر نتایج به سال:
Scattered radiation plays a significant role in mammographic imaging, with scatter fractions over 50% for larger, denser breasts. For screen-film systems, scatter primarily affects the image contrast, reducing the conspicuity of subtle lesions. While digital systems can overcome contrast degradation, they remain susceptible to scatter’s impact on the image resolution and noise. To better unders...
X-ray scatter is a major cause of nonlinearity in densitometry measurements using digital mammography. Previous scatter correction techniques have primarily used a single scatter point spread function to estimate x-ray scatter. In this study, a new algorithm to correct x-ray scatter based on image convolution was implemented using a spatially variant scatter point spread function which is energ...
The electronic conductance at zero temperature through a quantum wire with side-connected asymmetric quantum ring (as a scatter system) is theoretically studied using the non-interacting Hamiltonian Anderson tunneling method. In this paper we concentrate on the configuration of the quantum dot rings. We show that the asymmetric structure of QD-scatter system strongly influences the amplitude an...
Abstract This paper describes a technological solution for digital condition inspection, which includes the entire process, starting with on‐site image acquisition upto IFC‐4‐compliant result. In detail, process following steps: – Digital recording of object on site Automated creation 3D model from data in form textured scatter plot Generation BIM geometry Fully automated damage detection origi...
In two recent articles Erkelens et al. (1999a and 1999b) showed that coherent particle scatter (scatter of radiowaves by spatial variations in particle mass density) can explain the dual wavelength radar measurements made by Knight and Miller (1998) and dual wavelength measurements of a smoke plume made by Roger and Brown (1997). The 1999articles also showed quantitatively that coherent particl...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید