摘要
EAST装置第一壁在放电实验中的状态对装置能否高参数稳态运行有着至关重要的影响。为了保障装置安全稳态运行，本文设计在EAST装置上安装三套可见/红外内窥镜诊断系统，用来观测在放电实验过程中装置内部上下偏滤器、第一壁、限制器和加热天线等内部部件运行情况。基于这三套可见/红外内窥镜诊断系统，本文对EAST等离子体放电图像边缘检测技术和基于反射内存网络的快速图像拼接技术做了相关研究。主要内容如下： 1.可见/红外内窥镜诊断系统设计。根据装置窗口分布和装置特点，本文介绍了可见/红外内窥镜的光路设计；根据放电实验的需要，开发了可见相机PCO.edge5.5控制软件，实现了放电过程中数据的采集与处理。
2.等离子体放电图像边界检测。对放电过程中等离子体边界识别是获取等离子位置的一种途径，可用于等离子体上升段位置反馈控制。本文对可见相机与内窥镜组成的整体进行标定，去除成像畸变和标定距离。采用基于分水岭改进的Snake 模型边缘检测算法获取等离子体的边界并与EFIT反演结果比较，为反馈控制等离子体位置提供数据。
3.基于反射内存网络的大视场内窥镜系统的研究。利用反射内存网络将三套可见/红外内窥镜诊断系统采集到的可见图像传输到数据处理服务器进行图像拼接，利用GPU对图像拼接算法进行并行化处理加速图
像拼接过程，获得一个更大视场的图像，对第一壁的监控区域更大，方便实验人员对放电的判断和分析，为诊断人员对等离子体的控制以及为实时反馈控制提供有效的数据。
可见/红外内窥镜诊断系统是EAST装置上一个重要的常规诊断，本文设计了EAST装置大视场内窥镜系统，并基于此系统开展了初步研究并取得了一定的结果。未来可以从大视场红外可见图像高精度融合等方面继续展开研究，使实验人员能够及时、方便直观的了解EAST的内部可视化数据。
关键词：EAST装置；可见相机；边界检测；反射内存网络；图像拼接
ABSTRACT
The state of the first wall of the EAST device in the discharge experiment has a significant impact on the high-parameter steady-state operation of the device. In order to ensure the safe and steady operation of the device, three large-field visible/infrared endoscope diagnostic systems are installed on the EAST device to observe the operation condition of internal components such as the upper and lower divertor, the first wall, the limiter, heating antenna and so on. In this paper, related researches on EAST plasma discharge image edge detection technology and fast memory image mosaic technology based on reflective memory network have been accomplished based on these three large fields of view visible/infrared endoscope diagnostic systems. The main contents are as fo
llows:
1. Visible/infrared endoscope diagnostic system design. The optical path design of the visible/infrared endoscope is introduced based on the device window distribution and device characteristics. In order to reach the requirements of the discharge experiment, the visible camera PCO.edge5.5 control software was developed to obtain the data acquisition and processing in the discharge process.
2. Plasma discharge image boundary detection. Recognition of plasma boundary during discharge is an approach to obtain plasma position which is applied for plasma upfield position feedback control. This article first calibrates the overall composition of the visible camera and endoscope to remove imaging distortion and calibration distance. To obtain the plasma boundary and compare it with the EFIT inversion results, Using a watershed-improved Snake model edge detection algorithm provides data for feedback control of plasma position.
3. Research on large-field endoscope diagnostic systems based on reflective memory network. According to a reflective memory network, the visible images captured by the three visible/infrared endoscopy systems are transmitted to the data processing server for image stitching. We can use G
PU to accelerate image stitching process. This can obtain a larger field of view image, greater monitoring area for the first wall, convenient to judge and analyze the discharge for the experimenter, to provide valid diagnostic data for the control of the plasma and for real-time feedback control.
The visible/infrared endoscope diagnostic system is an important routine diagnosis on the EAST device. This article has carried on the preliminary research to the EAST
device big field camera image acquisition and the processing technology and obtained the certain achievement. In the future, we can continue to study from the perspective of high-precision, high-resolution infrared image fusion. This allows the experimenter to understand EAST's internal visualization data in a timely, convenient and intuitive manner.
KEYWORDS:EAST device; visible camera; boundary detection; reflective memory network; image stitching
目录
第一章绪论 (1)
1.1 核聚变简介 (1)
1.2 国内外可见/红外内窥镜诊断系统的研究现状 (3)
1.3 本论文研究目的和意义 (6)
1.4 本论文研究内容和章节安排 (6)
1.4.1 研究内容 (6)
1.4.2 论文章节安排 (6)
第二章 EAST可见/红外内窥镜系统设计 (8)
2.1 EAST装置简介 (8)
2.2 EAST可见/红外内窥镜光路设计 (11)
2.3 可见相机系统设计 (16)
2.3.1 可见相机介绍 (16)
2.3.2 可见相机软件设计 (17)
第三章基于可见相机的等离子体图像边界检测研究 (20)
3.1 相机标定 (20)
3.1.1 相机标定常用技术介绍 (20)
3.1.2 线性摄像机模型 (20)流动性缺口
3.1.3 非线性模型及其定标 (22)
3.1.4 张正友的平面模板两步法的原理 (23)
3.1.5 可见相机标定设计与实现 (25)
3.2 等离子体边界检测 (29)
新知3.2.1 Snake模型介绍 (29)
3.2.2 Snake模型的工作原理 (30)
3.2.3 Snake模型的不足之处 (30)
3.2.4 基于分水岭改进的Snake模型边缘检测算法 (30)
商战三十六计3.3 图像边界的拟合 (31)
3.3.1 圆拟合 (32)
3.3.2 椭圆弧线拟合 (33)
3.4 实验结果分析 (33)
第四章反射内存网络及数据传输与处理 (36)
4.1 反射内存卡介绍 (36)
4.2 反射内存网络搭建与程序开发 (38)
4.3 数据压缩 (42)
4.3.1 数据压缩的方式 (42)
4.3.2 LZO压缩 (42)
4.4 实验结果 (43)
第五章基于GPU的快速图像拼接技术 (45)
5.1 GPU与CUDA介绍 (45)
谷氨酸发酵5.1.1 CUDA存储器模型 (45)
5.1.2 CUDA编程模型 (46)
5.1.3 CUDA加速过程简介 (47)
朴东生5.1.4 CUDA程序优化策略 (49)海城杀人案
5.2 图像拼接介绍 (49)
5.2.1 数字图像拼接的定义 (50)
5.2.2 数字图像拼接的技术流程 (50)
5.3 图像拼接的并行化处理 (51)
5.3.1 SIFT算法的并行化处理 (51)
5.3.2匹配算法的并行化处理 (53)
5.3.3 RANSAC算法的并行化处理 (54)
5.4 试验结果与分析 (54)
第六章总结及展望 (56)
6.1 论文总结 (56)
6.2 工作展望 (56)
参考文献 (58)
攻读硕士学位期间的学术活动及成果情况 (62)
豫公网安备41160202000603
站长QQ:729038198
关于我们
投诉建议