| 论文简介 |
Frequency filtering, high pass filtering pro-process method, Laplace differential template, finite impulse response filtering, and wavelet transform have been proposed for eliminating zero-order diffraction in digital hologram reconstruction. The characteristics and limitations of these methods are summed up in this paper after systematically analyzing those. Furthermore, through comparing the quality of reconstructed images with or without a mean filter, it shows that the contrast and resolution have significantly been enhanced with mean filter. Finally, an effective method of improving the quality of reconstructed image, which combines wavelet transform with mean filter, is presented by contrasting and analyzing the experiment results. |
(创新港)
