三次曲线

To this end, the ultrasound cardiograph is filtered and fuzzily boundary enhanced, a threshold is set to obtain a binary image, then the heart's boundary is got through ellipse curve fitting, cubic spline interpretation and smoothing.

首先对超声心动图像进行滤波以消除图像中的噪声，并运用模糊数学理论进行模糊边缘增强，提取超声心动图像的内外膜边缘信息；接著对超声心动图像作二值化处理和椭圆曲线拟合，初步得到心脏的内外膜边缘；再采用相应的三次样条插值和平滑技术，得到光滑、连续的心脏内外膜边缘。

A new algorithm for offset to cubic B-spline curve is proposed.

提出了一种三次B样条曲线等距线生成的算法。

The simulation result indicated that it is feasible to predict spring-back curve based of cubic spline.

仿真结果表明基于三次样条来预测回弹曲线是可行的。

At last, the cubic spline curve is used to make the cutting lines smooth.

最后还用三次样条曲线对裁剪做了光顺化处理。

HCI generated cubic Bezier curve, but no editing function, is continuing to improve.

人机交互生成三次Bezier曲线，但是没有编辑功能，正在继续改进！

The problem of constructing planar cubic PH curve Hermite interpolation is discussed.

讨论平面上三次PH曲线Hermite插值问题。

From C procedures adapted from a cubic spline curve simulated sine wave source procedures are interested can look at.

由本人改编自C程序的一个三次样条曲线模拟正弦波程序源码，有兴趣的可以看看。

In addition to procedures to achieve cubic Bezier curve drawing, but also realized the point, line, round mapping, can be used as learning computer graphics algorithm reference.

程序除实现三次Bezier曲线的绘制，还实现了点，直线，圆的绘制，可做为学习计算机图形算法的参考。

In this model, a cubic B-spline curve segment is used as one element, and the FEM is adopted to find the B-spline active contour which minimize its energy.

该模型以三次B样条曲线段作为有限单元，运用有限元法对B样条主动轮廓的能量泛函极值问题进行求解，从而实现对图像的轮廓提取。

In this article, drawing method for grain composition curve by cubic spline function on computer is expounded, calculation method of sediment weight percentage for different grain-size classification is also put forward.

阐述了在计算机上如何利用三次样条函数用数学的方法绘制颗分曲线，并提出小于各粒径级别的沙重百分数的方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。