红细胞流动序列样本模型的构建及仿真  

Construction and Simulation of Erythrocyte Flow Sequence Sample Model

作　　者：王娜 陈国栋[4] 戈文婷 徐鲁雄 WANG Na;CHEN Guo-dong;GE Wen-ting;XU Lu-xiong(School of Electronics and Information Engineering, Fuqing Branch of Fujian Normal University, Fuqing 350300, China;Key Laboratory of Nondestructive Testing(Fuqing Branch of Fujian Normal University), Fujian Province University, Fuqing 350300, China;Engineering Research Center for ICH Digitalization and Multi-source Information Fusion, Fujian University, Fuqing 350300, China;College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China)

机构地区：[1]福建师范大学福清分校电子与信息工程学院,福建福清350300 [2]无损检测技术福建省高等学校重点实验室,福建福清350300 [3]非遗数字化与多源信息融合福建省高校工程研究中心,福建福清350300 [4]福州大学物理与信息工程学院,福建福州350108

出　　处：《数学的实践与认识》2019年第15期132-138,共7页Mathematics in Practice and Theory

基　　金：国家自然科学基金(61471124);福建省自然科学基金(2016J01293,2017J01107,2018J01787);福建省中青年教师教育科研项目(JA15574);校级国家自然基金校内培育项目(KY2017NS05)

摘　　要：传统的静态模型方法难以模拟红细胞由于外部条件变化产生的形变.针对该问题,以流体力学的数值计算方法和偏微分方程的数学理论为基础,引入动态纹理技术对红细胞流动现象进行仿真,将贪心策略融入EM算法完成了红细胞序列样本的分割并构建了红细胞流动序列样本模型.实验结果表明,该模型有效地降低了相似动态纹理基元出现的概率,仿真结果具有真实感与自然感,减少了仿真过程中的人工参与工作量.The traditional static model method is difficult to simulate the deformation of erythrocytes when the outside conditions change.A dynamic texture synthesis technic based on the numerical calculation method of fluid mechanics and the mathematical theory of partial differential equation for the computer simulation is proposed to analyze the motion of a erythrocyte.A method of rerythrocyte sequence sample segmentation based on EM algorithm and greedy strategy is proposed in the paper.In addition,a sample model of erythrocyte flow sequence is constructed.The experimental results show that the model reduces the probability of similar dynamic texture primitives effectively.The synthesized results are realistic and natural,which reduce the workload of manual participation in the simulation process.

关 键 词：红细胞 纹理基元 EM算法 贪心策略 

分 类 号：O35[理学—流体力学] R318[理学—力学]