大学毕业设计(论文)题 目: 小波包分析在信号处理中的应用 学 院: 信息学院 专 业: 信息工程 学生: 正正 班级/学号指导老师/督导老师:起止时间:2024 年 2 月 20 日 至 2024 年 6 月 15 日 摘 要图像是一种重要的信息源,通过图像处理可以帮助人们了解信息的涵。数字图像噪声去除涉与光学系统、微电子技术、计算机科学、数学分析等领域,是一门综合性很强的边缘科学,如今其理论体系已十分完善,且其实践应用很广泛,在医学、军事、艺术、农业等都有广泛且成熟的应用。本文简述了小波包分析的原理,并基于 MATLAB 实现了对二维图像信号进行消噪。对常用的几种阈值去噪方法进行了分析比较和仿真实现。最后结合理论分析和实验结果,讨论了去噪过程中影响去噪性能的各种因素。为在实际的图像处理中,小波包阈值去噪法的选择和改进提供了数据参考和依据。关键词:小波包分析;图像消噪;阈值AbstractImage is one kind of important information source, it may help people through the imagery processing to understand the information the connotation. The digital image denoise involves domains and so on optical system, microelectronic technology, computer science,mathematical analysis, it’s a very comprehensive interdisciplinary science, now its practice application is very widespread: In the medicine, the military, art, the agriculture and all have very extensive and ripe using so on. This paper talks about the principle of wavelet packet anaIysis,and denoise image signal of two dimensions by matlab.It done comparing experiments using several good threshold denoising methods.Finally according to the theory analysis and simulation results,the paper discusses several kinds of factors which affect the denoising capability in a complete denoising algorithm.That provides the date reference of threshold denoisingmethods in actual image process.Key words:wavelet packet analysis;image denoise;threshold目 录摘要 (中文).............Ⅰ(英文)....Ⅱ第一章概述 11.1 小波包讨论...