.A modified aperture-synthesis method for super-resolution by a single digital hologram[J].Optoelectronics Letters,2010,6(5):392-395
A modified aperture-synthesis method for super-resolution by a single digital hologram
冯少彤
Jiangsu Key Laboratory for Optoelectronic Technology, Nanjing Normal University;
Abstract:
      A modified aperture-synthesis method is reported to improve the resolution of a reconstructed image in digital holography by a single hologram. A series of sub-holograms incoherently overlapped on a CCD are recorded as a single aperture-synthesized digital hologram. The angular division multiplexing is introduced to both the object and the reference path for holographic recording. The final super-resolved image is obtained by synthesizing the several reconstructed images. In the experiment, a two-dimensional transparent USAF resolution test target is used. The result demonstrates that the resolution of the reconstructed image is improved from 16.00 lp/mm to 22.64 lp/mm in the horizontal direction.
Hits: 4077
Download times: 212
View Full Text    Download reader