| 1. | Object recognition based on affine invariants in implicit polynomial curves
基于隐含多项式曲线仿射不变量的目标识别 |
| 2. | In this di ssertation , segmentation , description and recognition of objects are studied systematically by the variogram function and implicit polynomial ( ip ) curve
本文引进变差函数和隐含多项式曲线理论对景物图像中的物体分割、描述和识别作了较为系统的研究。 |
| 3. | At last , the t - b zier curves and t - b - spline curves can be converted to rational curves so easily that they can be merged into current geometry modeling rapidly
最后由于这两类曲线仅由三角函数构成，所以它们较易转化为有理多项式曲线。从而融入到现有的几何造型系统中。 |
| 4. | Based on the historical data of shanghai port container throughput , forecast models are established by using grey prediction model and cubic polynomial curve prediction model
摘要利用上海港国际集装箱吞吐量的历史数据，分别采用灰色预测法和三次多项式曲线模型建立了单项预测模型。 |
| 5. | Due to the introduction of [ p curves , the method detects the symmetry and axis of objects by using the expressions of function instead of using the optimization method
由于是基于隐含多项式曲线进行对称性检测，因而并不需要复杂的优化算法，仅用明确的解析式即可验证对称性并检测出相应的对称轴。 |
| 6. | As far as parametric curves and surfaces are concerned , we discuss the point - by - point generating algorithms for parametric polynomial curves , parametric rational curves and parametric polynomial surfaces
对于参数曲线曲面，介绍了参数多项式曲线，有理参数曲线和参数多项式曲面的逐点生成算法，这些算法能广泛地应用于实际。 |
| 7. | ( 3 ) the methods of determining the degree of ii ? curves based on the boundary of objects and tightly fitting objects with ip curve are proposed . the algorithms would help to fit and describe objects automatically by computer
这为计算机自动选取适当次数的隐含多项式曲线拟合与描述物体提供了依据，同时减少了图像物体识别中人的参与。 |
| 8. | In the second chapter , a class of polynomial blending functions of degree n + 1 is presented . based on the functions , we present polynomial curves with some shape parameters . the generated curves are similar with the degree n bezier curves
第二章给出一类n + 1次多项式调配函数，并由此构造了带形状参数的多项式曲线，生成曲线具有与n次b zier曲线类似的几何性质。 |
| 9. | They have the properties like the quadratic uniform b - spline basis functions . the piecewise polynomial curves generated by the above - mentioned functions possess the same structure and geometry properties as piecewise quadratic uniform b - spline curve
它们具有二次均匀b样条基函数的性质，且用它们生成的分段多项式曲线具有与分段二次均匀b样条曲线相同的结构和几何性质。 |
| 10. | Finally , some methods of digital processing techniques , such as polynomial curve fitting and exponential curve fitting and subsection curve fitting , are used firstly to compensate the performance of the detector . the measurement accuracy of the reader is improved , with the validity proved
首次运用了多项式曲线拟合技术、指数曲线拟合技术以及采用分段拟合的技术，补偿检波器的性能，提高了通信系统的测量精度，应用效果显著。 |
