نتایج جستجو برای: spline with tension swt
تعداد نتایج: 9216921 فیلتر نتایج به سال:
In this paper, a new set of spline functions called ``Flat End Fuzzy Spline" is defined to interpolate given fuzzy data. Some important theorems on these splines together with their existence and uniqueness properties are discussed. Then numerical examples are presented to illustrate the differences between of using our spline and other interpolations that have been studied before.
One approach to accelerating data acquisition in magnetic resonance imaging is acquisition of partial k-space data and recovery of missing data based on the sparsity of the image in the wavelet transform domain. We hypothesize that the application of stationary wavelet transform (SWT) thresholding as a sparsity-promoting operation results in improved artifact removal performance in comparison w...
Previous theoretical (McCartin 1989a) and computational (McCartin 1989b) results on exponential splines are herein applied to provide approximate solutions of high order accuracy to nonlinear hyperbolic conservation laws. The automatic selection of certain "tension" parameters associated with the exponential spline allows the sharp resolution of shocks and the suppression of any attendant oscil...
مطالعهی تغییرات بسترهای رسوبی در شناخت رفتار رودخانه، از جمله مسایل مورد توجه مهندسان رودخانه میباشد. با توجه به این که در قوس رودخانهها میزان آبشستگی و رسوبگذاری در مقایسه با مسیرهای مستقیم مشهودتر است، شناخت چگونگی تغییرات توپوگرافی بستر قوسها و الگوی آبشستگی و رسوبگذاری از نکات جالب توجه مهندسان هیدرولیک میباشد. در این پژوهش با استفاده از دادههای آزمایشگاهی در قوس90 درجه و همچنین قوس...
It is an important fact that general families of Chebyshev and L-splines can be locally represented, i.e. there exists a basis of B-splines which spans the entire space. We develop a special technique to calculate with 4 order Chebyshev splines of minimum deficiency on nonuniform meshes, which leads to a numerically stable algorithm, at least in case one special Hermite interpolant can be const...
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