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Distortion-tolerant 3D object recognition by using single exposure on-axis digital holography

  • University of Connecticut

Research output: Contribution to conferenceChapterpeer-review

Abstract

Optical systems have been extensively studied for object recognition [1–8]. With rapid advances in CCD array sensors, computers, and software, digital holography can be performed efficiently as an optical system for 3D object recognition. Digital holography has also been a subject of great interest in various fields [9–16]. In digital holography, the off-axis scheme has been widely used since it is simple and requires only a single exposure in separating the desired real image term from the undesired DC and conjugate terms [9]. However, 3D object recognition by use of the off-axis scheme has inherent limitations in terms of robustness to the variation of the 3D object position due to the superposition of the real image with undesired terms. The tolerance problem to the variation of the 3D object positioning can be resolved by employing an on-axis scheme. Recent studies on 3D object recognition by use of phase-shifting digital holography have provided a feasible approach for implementing the on-axis 3D object recognition system [6–8].

Original languageEnglish
Title of host publicationAdvanced Sciences and Technologies for Security Applications
PublisherSpringer
Pages195-206
Number of pages12
DOIs
StatePublished - 2007

Publication series

NameAdvanced Sciences and Technologies for Security Applications
Volume3
ISSN (Print)1613-5113
ISSN (Electronic)2363-9466

Keywords

  • Digital Holography
  • Recognition Capability
  • Reference Object
  • Single Exposure
  • Training Image

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