Enhanced autofocusing scheme in digital holography based on hologram decomposition

Jiao Shuming*, P. W M Tsang

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

6 Citations (Scopus)

Abstract

In digital holography, it is necessary to identify the focal plane distances automatically for a hologram containing information of multiple object depth sections. This paper points out the 'Shading Effect' problem in traditional hologram autofocusing methods. To overcome this limitation, an enhanced autofocusing scheme based on hologram decomposition is proposed. The hologram is decomposed into sub-holograms and the focal plane distance is determined separately for each sub-object. Simulation results reveal that our proposed method has good accuracy and reliability.
Original languageEnglish
Title of host publicationIEEE International Conference on Industrial Informatics (INDIN)
PublisherIEEE
Pages541-545
ISBN (Print)9781509028702
DOIs
Publication statusPublished - 13 Jan 2017
Event14th IEEE International Conference on Industrial Informatics (INDIN 2016) - Palais des congrès du Futuroscope, Poitiers, France
Duration: 19 Jul 201621 Jul 2016

Publication series

Name
ISSN (Print)1935-4576

Conference

Conference14th IEEE International Conference on Industrial Informatics (INDIN 2016)
PlaceFrance
CityPoitiers
Period19/07/1621/07/16

Research Keywords

  • automatic focusing
  • decomposition
  • edge number
  • entropy
  • shading effect

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