轮廓波变换的数字全息再现像质量改善

发布时间：2018-11-19 11:51

【摘要】：在数字全息再现像过程中,受到噪声干扰,再现像质量差,对比度低。为了解决当前数字全息再现像方法的缺陷,获得更优的数字全息再现像质量,提出基于轮廓波变换的数字全息再现像质量改善方法。首先采用小波变换去除数字全息再现像噪声,然后采用轮廓波变换方法对数字全息再现像再次去噪,最后采用数字全息再现像实验进行可行性分析。结果表明,本文方法有效去除数字全息再现像的噪声,获得了理想的数字全息再现像,有利于后续的数字全息再现像处理。
[Abstract]:In the process of digital holographic image reconstruction, the quality of the reconstructed image is poor and the contrast is low due to noise interference. In order to solve the defects of the current digital holographic reconstruction method and obtain better digital holographic reproduction image quality, a new method based on contour transform is proposed to improve the digital holographic reconstruction image quality. Firstly, wavelet transform is used to remove the noise of digital holographic reconstructed image, then the contour wave transform method is used to de-noise the digital holographic reconstructed image again. Finally, the feasibility analysis of digital holographic reconstruction image experiment is carried out. The results show that the proposed method can effectively remove the noise of the digital holographic reconstruction image and obtain the ideal digital holographic reconstruction image, which is beneficial to the subsequent digital holographic reconstruction image processing.
【作者单位】：深圳大学光电工程学院教育部广东省光电子器件与系统重点实验室;深圳职业技术学院电子与通信工程学院;浙江大学电子与通信工程学院;
【基金】：国家自然科学基金(61377017)
【分类号】：TN26

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