摘要由于数码照相机拍摄图像受CCD靶面尺寸的限制,从而影响了的整个系统的视场。为实现360度周视高分辨图像的采集,本课题采用线阵CCD扫描方案实现。本课题主要研究内容是全景线阵CCD图像采集系统的图像显示方法与显示软件设计。63706
本课题在研究了CCD的基本结构以及工作原理的基础上,给出了总体方案,设计了各模块,如器件选材,驱动电路,信号预处理,A/D转换,USB数据传输。最后设计了全景图像显示程序,显示图像,并进行了畸变校正。最后进行总结并展望下一步的工作。结果表明,通过这种方案可以很好地实现周视图像的采集与实时显示。
毕业论文关键词:线阵CCD 图像采集 实时显示 畸变校正
毕业设计说明书(论文)外文摘要
Title Research of image display method of image acquisition system by panoramic linear CCD
Abstract
Since the digital camera is limited by CCD size, thus affects the view of the entire system. In order to obtain 360 ° range of high-resolution image, a linear CCD circular-viewing image acquisition system is established. The main contents of the thesis are image display method of panoramic linear CCD image acquisition system and the software design.
On the basis of introducing the basic structure and working principleof panoramic linear CCD, an overall program is given. Each module is designed such as device selection, the drive circuit design, signal pre-processing, A / D conversion, and USB data transmission. Then the program ofpanoramic image display is designed, and the distortion of the image is corrected. Finally, a summary of the research content is made and the next step of research is to be continued. The result shows that, the acquisition of circular-viewing image and real-time display can be well achieved by this program.
Keywords: linear CCD image acquisition real-time display distortion correction
1 引言 1
1.1 论文研究的背景 1
1.1.1 全景成像技术的发展与应用 1
1.1.2 CCD的发展与应用 2
1.2 全景线阵CCD的主要技术 3
1.2.1 CCD元器件的分类 3
1.2.2 CCD成像与CMOS成像的对比 5
1.2.3 生成全景图的方式 5
1.2.4 图像的非线性畸变 6
1.2.5 CCD成像显示的后期处理 6
1.3 本论文的主要研究内容 6
2 系统总体方案设计 7
2.1 CCD的基本结构与工作原理 7
2.2 CCD的特性参数 9
2.3 系统总体方案设计 10
2.4 小结 11
3 CCD数据采集系统设计 12
3.1 线阵CCD驱动设计 12
3.1.1 TCD1209D器件 12
3.1.2 复杂可编程逻辑器件 14
3.2 信号预处理电路