基于仿射几何不变量的鲁棒图像配准算法

提出了一种新的基于特征的鲁棒图像配准算法.该算法通过构造特征区域将仿射几何不变量应用到特征描述过程中,使其能够处理待配准图像之间满足仿射几何畸变的情况.由于在特征描述过程中,特征矢量计算量小且仅与控制点的坐标信息有关而独立于图像的灰度信息,故该算法不仅具有很好的时效性,而且对图像之间灰度值的偏差具有很好的鲁棒性.     

关于单形及内接单形的几何不等式及应用

运用代数方法和几何不等式理论,研究了有关单形内点及其内接单形的极值问题,建立了涉及单形及其内接单形的外接球半径以及内点到侧面距离之间的几何不等式.作为特例,对著名的n维Euler不等式作了新的推广和改进.     

一个几何不等式的推广

推广和改进了一个几何不等式.     

独立学院n维向量空间的教学改革

作为数学专业基础课的高等代数课程,对于独立院校数学专业而言,是一门重要而又难学的课程.高等代数有着深刻的几何背景,教师在进行教学设计时,要巧妙借助向量空间的几何背景来优化教学.以n维向量空间为例,结合数学学习论理论,给出相关的教学建议,从而达到提高教学质量的目的.     

Retrospective Testing of Mortality Forecasting Methods for the Projection of Very Elderly Populations in Australia

The purpose of this paper is to present the results of retrospective tests of various extrapolative methods to forecast adult mortality and very elderly populations for Australia. Direct extrapolation methods tested include the Geometric method, Ediev variant, Lee‐Carter method, BMS variant and a relational model. Indirect methods include the extrapolation of parameters of models fitted to the age profile of death rates and a new method involving the extrapolation of features of death frequency distributions namely the modal age and concentration. The geometric, Ediev and Lee‐ Carter BMS methods were very successful in projecting death rates and very elderly populations. Differences between these methods were small. The extrapolation of parametric functions proved successful for males but less so for females. Very elderly populations can be viably projected by directly extrapolating death rates by age when rates of decline in death rates show consistent relationships between ages and are stable over time. Copyright © 2016 John Wiley & Sons, Ltd.     

弹性连杆机构的组合共振

考虑柔性构件大 变形引起的几何非线性，用多尺度方法，研究含内共振ω２≈２ω１的弹性四连杆机构在简谐激励作用下的组合共振响应特性。     

基于面向对象的参数化设计模型及其实现

介绍一个基于面向对象的参数化设计模型及其具体实现。     

人体肝细胞的图象分析及形态定量病理诊断系统建立的研究

作者在对人体肝细胞形态特征进行图象分析研究的基础上，运用数字图象增强技术，数字图象分析技术。体视学理论，判别分析方法和聚类分析方法，初步建立起人体肝细胞形态定量病理诊断系统。     

齿轮低频误差的频谱分析

根据齿轮精度理论,通过实测数据,应用频谱分析方法,对滚削齿轮、插削齿轮和剃削齿轮的低频误差进行了分析。通过试验,验证了剃齿前后齿轮低频误差的转化规律,并比较了范成误差△F_c与公法线长度变动△F_w这两个精度指标。     

A NEW SYSTEM FOR COMPUTER AIDED PATTERN DESIGN——CAPDS

This paper proposes a new computer aided pattern design system(CAPDS)in which a uniformmathematical expression is used to construct different objects. In the geometric model, 3 B-splineis adopted as a line model. The new system with uniform mathematical expression has the distin-guishing features: curve smoothness and fidelity, convenience to process graphic data in thedatabase and etc.. This paper presents the data structure, the program structure and also the implementation.