摘要家蚕吐丝是自然界中典型的微流动现象，吐丝过程中，蚕丝丝素流过整个丝腺和吐丝管，并均匀流出家蚕吐丝口，表现出良好的微流动特性，且家蚕丝腺结构简单，驱动能耗低，蚕丝尺寸均匀，直径处于10um量级，微通道中流动正常性好。从仿生学角度而言，其丝腺结构特征对研究仿生微通道与微流体系统具有重要意义。50280

本文在通过显微镜观察技术获得五龄家蚕的断面切片图像的基础上，运用Matlab软件对其进行滤波、分割处理以消除噪声、提取丝腺轮廓，之后利用3D Med和Image-Pro Plus软件对分割得到的轮廓进行配准与图像矢量化，最后运用UG软件用进行三维重建得到了家蚕丝腺数字模型，并对丝腺模型结构进行了简单的分析和优化，为以后的内部流动特性分析和进一步的微通道研究奠定了基础。

关键词：微流体系统；仿生微通道；家蚕丝腺；图像处理；模型重建

Abstract Bombyx mori silk extrusion is a typical micro flow phenomena in the nature, during the process of Bombyx mori silk extrusion, silk fibroin throughout the silk gland and spinneret, and outflow spigot uniformly, showing good flow characteristics in micro channels, also, silk gland is simple in structure and its power consumption is low. What’s more, its silk has uniform size whose diameter is on the scale of 10um. From the perspective of bionics, it is of great significance for studying bionic micro channel and the micro fluidic system to study the silk gland structure characteristics of Bombyx mori. 

We obtained section slice image of the five instar of silkworm by microscope image technique, which was filtered, segmentated used Matlab software to eliminate noise and get contour of silk gland, and then registration and vectorization of image after segmentation were carried out with 3D Med and Image-Pro Plus software, finally we used UG software to reconstruct and got silk gland 3D model, laying the foundation for future analysis of the internal flow characteristics and further study on micro channel.

Keywords: Micro fluidic system; Bionic micro channel; Bombyx mori silk gland; Image processing; Model reconstruction 

目录

摘要 VI

Abstract VII

第一章 绪论 1

1.1 研究背景及意义 1

1.2 微通道研究现状 1

1.3 家蚕丝腺结构研究现状 3

1.4 本文内容与结构 4

第二章 家蚕丝腺显微图像获取 6

2.1概述 6

2.2 家蚕丝腺吐丝管切片制作 6

2.3显微图像采集系统 7

2.4 家蚕丝腺显微图像获取方法 9

2.5 本章小结 10

第三章 家蚕丝腺吐丝管显微图像处理 11

3.1 概述 11

3.2 显微图像处理方法 11

3.3 家蚕丝腺吐丝管显微图像处理 12

3.3.1 图像滤波 12

3.3.2 图像分割 13

3.4 本章小结 17

第四章 家蚕丝腺数字化模型重建及应用 18

4.1 家蚕丝腺结构 18

4.2 三维模型构建方法