基于图像处理的云爆弹云雾抛撒规律检测+源程序
时间:2018-07-19 09:12 来源:毕业论文 作者:毕业论文 点击:次
| 摘要云爆弹在一次引爆后其云雾作用范围及扩散速率是衡量爆炸毁伤效应的指标之一，如何准确高效地获取云雾抛撒的变化规律，对云爆炸药的研究定型和威力评判有着重要的意义。本文用高速摄像机结合同步触发器，构建了云爆弹一次引爆后云雾生长的测试采集系统并记录了云雾抛撒的全过程。通过对实验现场获取的云爆弹云雾抛撒图像进行处理，经过研究分析可得到云雾生长过程中面积和周长的变化规律。图像处理主要过程为先提取帧图像，背景差法得到差值图像，而后二值化和形态学处理获取理想的云雾轮廓，最后得到面积周长的实际尺寸。通过对云团面积和周长数据进行最小二乘曲线拟合，分析得出云团的面积和周长皆随时间的推移呈抛物线增长。25873 关键词 云爆弹 图像处理 抛撒规律 毕业论文设计说明书外文摘要 Title Studies on the changing rule of FAE vapor cloud based on image processing Abstract The coverage area and the diffusion rate of FAE vapor cloud from first ignition are important indicators of the explosion damage effect. How to get the changing rule of explosive dispersion accurately and efficiently is of great significance to the study、setting and power judging of FAE. In this paper, a growth process of FAE vapor cloud was recorded with a high-speed camera and a synchronous trigger. By processing the images from the experimental site, the changing rule of area and perimeter can be studied in the process of explosive dispersion. The first step of image processing is extracting the frames from the video. Difference image was obtained by background subtraction. After that, thresholding and morphological processing were applied to the difference image to get the actual size of area and perimeter of cloud contour. Based on the least squares fitting method, the growing rule of the cloud area and perimeter can be judged that they increase parabolically over time. Keywords FAE image processing explosive dispersion 目 次 1 绪论 1 1.1 研究背景及意义 1 1.2 国内外研究现状 2 1.2.1 云雾抛撒数值仿真研究 2 1.2.2 云雾抛撒数字图像处理研究 2 1.3 本课题研究内容 3 2 总体方案设计 4 2.1 测试系统 4 2.1.1 测试系统组成 4 2.1.2 测试系统的标定 5 2.2 图像采集 6 2.3 软件部分 7 3 图像处理 9 3.1 图像预处理 10 3.1.1 图像读取及平滑去噪 10 3.1.2图像灰度化 10 3.2 云爆弹云团提取 12 3.2.1 背景差与二值化 12 3.2.2 图像后期修整 18 3.2.3 云团轮廓提取 20 3.3 云团特征参数提取 21 3.3.1 面积提取 21 3.3.2 周长提取 22 4 云团特征参数分析 23 结 论 29 致 谢 30 参 考 文 献 31 附录A 程序代码 32 (责任编辑：qin) |