Defocusing Digital Image Analysis And Recovery

On the basis of introduction and constrast of many kinds of analyzing and recovering defocus image technology,we generally discuss the process of the technology.In this optical system,the object is LCD,and get the defocus images from CCD.Teminal PC get the images through the data line, then analyze and recover the images.When analyzing and recovering the images.First,get images from different camera parameters.Second, analyze some of the images deeply and acquire the optical system's characteristics.Then choose appropriate arithmetics and improve these arithmetics .Finally, develop software to recover the defocus images . This dissertation also contrast the effects of some arithmetics in different spatial frequency and camera parameters.There are seven chapters in this dissertation.The first chapter mainly introduces the investigation background and application. The second chapters expound the principles, arithmetics and the contrast of them,involve the spatial domain arithmetic what is the most impotant arithmetic in this dissertation .The next two chapters set forth several method use in the expriments. The fifth and sixth chapters are very important in this dissertation. These chapters generally discuss the experiment,the software development and the content around them. In the last chapter a conclusion is made and the future improvement are proposed.