Numerical reconstruction in in-line digital holography by translation of CCD position and gradient operator method

C. Quan, Wen Chen, C. J. Tay

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


We propose an approach based on axial translation of a charge-coupled device (CCD) and gradient operator method for numerical reconstruction in in-line digital holography. The object wave in the hologram (or CCD) plane is determined using one position translation of CCD, and a phase-shifting device can be fully avoided. Gradient operator method is further applied to detect the focal plane of an object, and the object wave is reconstructed by an angular spectrum algorithm with the detected focal distance. The feasibility and effectiveness of the proposed method are demonstrated by numerical simulations.
Original languageEnglish
Pages (from-to)2767-2770
Number of pages4
JournalOptics Communications
Issue number12
Publication statusPublished - 1 Jun 2011
Externally publishedYes


  • Focal distance detection
  • Image processing
  • In-line digital holography
  • Numerical reconstruction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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