二维傅立叶变换的教学实践

Practice on Teaching 2-Digital Fourer Transform

"数字图像处理"是一门理论与实践并重的课程,二维傅立叶变换是其中的重要章节之一。本文通过对二维傅立叶变换章节内容的解析,结合以往在教学过程中存在的一些问题,具体从基于问题的启发式教学、基础理论与编程实践的有机结合及学生上讲台自主汇报等方面给出了一些教学探索和体会。实践表明,这些措施激发了学生的学习热情和兴趣,提高了课程的教学效果。

Digital Image Processing is a course of combining theory with practice, among which the two-dimensional Fourier transform （2DFT） is one of the important chapters. By parsing the contents of the 2DFT, according to the problems occur in previous teaching, the authors take several explorations on teaching this chapter： use of problem- posing in heuristic-based teaching; combinational teaching of fundamental principles and programming practice; ask the students to come to the front and give lectures on partial contents. The teaching practice shows that these steps can stimulate the students/enthusiasm and interest of learning, thus improve the teaching effect.