搜索结果: 1-15 共查到“工学 spline”相关记录17条 . 查询时间(0.062 秒)
PENALIZED SPLINE:A GENERAL ROBUST TRAJECTORY MODEL FOR ZIYUAN-3 SATELLITE
Penalized Spline Trajectory Model ZiYuan-3 Satellite Band-to-band Registration Multispectral Images
2016/7/4
Owing to the dynamic imaging system, the trajectory model plays a very important role in the geometric processing of high resolution satellite imagery. However, establishing a trajectory model is diff...
Using B-spline surfaces for chromatic attachment of digital orthophotos
Using B-spline surfaces chromatic attachment digital orthophotos
2016/5/20
Since the eighties, there has been a significant evolution of photogrammetric systems for the production of digital orthophotos. All the various procedures for the generation of orthophotos (for examp...
USING MULTIVARIATE ADAPTIVE REGRESSION SPLINE AND ARTIFICIAL NEURAL NETWORK TO SIMULATE URBANIZATION IN MUMBAI, INDIA
Land Use Change Data Mining Multivariate Adaptive Regression Spline Artificial Neural Network Receiver Operating Characteristic
2016/1/15
Land use change (LUC) models used for modelling urban growth are different in structure and performance. Local models divide the data into separate subsets and fit distinct models on each of the subse...
SAR IMAGE SEGMENTATION THROUGH B-SPLINE DEFORMABLE CONTOURS AND FRACTAL DIMENSION
change detection classifi cation edge extraction
2015/6/1
Synthetic Aperture Radar (SAR) images are usually corrupted by a signal-dependent non-additive noise called speckle.
This makes difficult the segmentation, object identification, and feat...
ADAPTIVE TRANSFORMATION OF CARTOGRAPHIC BASES BY MEANS OF MULTIRESOLUTION SPLINE INTERPOLATION
cartography GIS integration algorithms multiresolution vector
2015/6/1
GIS databases often need to include maps from diverse sources. These can differ one another by many characteristics: different projections or reference systems, (slightly) different scales, etc. Theor...
本文提出一种基于Spline样条插值的同步重构技术，实现分布式多速率数据帧的扫描同步。该技术在分布式测控网络系统中出现多种不同采集速率和/或不同起始时刻的测量情况时，能有效地把这些测量数据转换为相同帧速率的数据，从而实现采集数据的同步。本文最后通过两个数值仿真实例验证了Spline插值的同步重构技术有效性和准确性。
A 3D pyramid spline element
Spline finite element Pyramid element The second order completeness B-net method
2012/2/28
In this paper, a 13-node pyramid spline element is derived by using the tetrahedron volume coordinates and the B-net method, which achieves the second order completeness in Cartesian coordinates. Some...
Design of optimal sampling times for pharmacokinetic trials via spline approximation
Pharmacokinetic parameters optimal sampling time design spline approximation sequential quadratic programming
2010/11/22
Understanding and comparison of different drug delivery formulations are based on pharmacokinetic parameters (PKP) such as area under curve, maximum concentration, and time to reach maximum concentrat...
Usage of spline interpolation in catheter-based cardiac mapping
Surface interpolation, spline interpolation, catheter-based cardiac mapping, computer simulation
2010/11/22
Due to their minimal invasiveness catheters are highly preferred in cardiac mapping techniques used in the source localization of rhythm disturbances in the heart. In cardiac mapping, standard steerab...
基于周期性延伸的三次B样条闭曲线插值（Interpolation of Cubic B-spline Closed Curve Based on Periodic Extension）
闭曲线 三次B样条插值 带状阵 周期性延伸
2009/12/28
针对闭曲线具有可周期性延伸的特点，提出了一种基于求解双列带阵线性方程组的三次B样条完全闭曲线插算法。通过节点向量和控制点在曲线闭合点两端的周期性延伸，使插值曲线在闭合点实现了理论上的完全封闭。针对曲线插值线性方程组中系数矩阵具有不完全带阵的特点，提出了一种双列带阵线性方程组求解算法。应用实例表明，算法性能稳定、效率高、可插值任意形状的复杂闭曲线，适于处理大数据量闭曲线插值运算。
北京工业大学计算机图形学课件6-2 B-spline曲线
北京工业大学 计算机图形学 课件 B-spline曲线
2009/10/20
北京工业大学计算机图形学课件6-2 B-spline曲线。
Smooth Boundary Topology Optimization Using B-spline and Hole Generation
Smooth boundary topology optimization Selection criterion
2009/8/19
A topology optimization methodology, named “smooth boundary topology optimization,” is proposed using a simple idea of combining parameterized boundary shape optimization and selection criterion for h...
基于B-spline矢量图形数字水印方法
数字水印 矢量图形 B-spline
2009/6/23
提出了一种针对矢量图形的数字水印算法，用于矢量图形的版权保护。算法利用了B-spline良好的持续逼近曲线形状的特点，将水印嵌入到B-spline的控制点坐标中。经实验证明，该算法对于通常的图形几何变换，如平移、旋转、缩放以及局部修改攻击，均有令人满意的鲁棒性。
液力变矩器叶栅系统样条拟合参数设计体系 Parameterization Design Architecture of Cascade in a Hydrodynamic Torque Converter Based on Spline Fit Curve
液力变矩器 叶栅系统 参数化
2009/5/18
阐述了液力变矩器叶栅系统参数化设计方法，在对几种典型叶型设计方法分析比较的基础上，基于实用的最小参数原则选定了样条拟合曲线方法实现叶片设计，并结合变宽度循环圆设计方法，提出了叶栅系统参数化设计方法，基于UG/OPEN API编制了相应程序并给出了设计实例。在上述研究基础上，总结并提出了液力变矩器叶栅系统参数化体系，为后续叶栅系统三维优化设计及制造提供了灵活便捷的设计模型。
用Spline函数拟合实验数据
实验数据 Spline函数
2009/1/9
本文叙述了Spline和B—Spline的定义及其性质;介绍用三次Spline拟合多家实验数据的方法和计算程序。