Interferenceless Coded Aperture Correlation Holography: History, Development, and Applications

Vijayakumar Anand, Joseph Rosen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Interferenceless coded aperture correlation holography (I-COACH) was developed in 2017 to achieve 3D imaging without two-beam interferences. In I-COACH, the imaging process consists of three steps: COACHing, recording and reconstruction. In the COACHing step, the point spread function (PSF) library is recorded. In the recording step, an object mounted within the axial boundaries of the PSF library is recorded, and the recording is processed with the PSF library in a computer to reconstruct the image of the object in the final step. During the past five years, I-COACH evolved rapidly into a significant incoherent holography technique breaking the limits of almost all imaging characteristics such as lateral resolution, axial resolution, spectral resolution and field of view, not to mention, the ability to sense colour with a monochrome sensor. In this invited article, some of the major milestones in the evolution of I-COACH are briefly presented.

Original languageEnglish
Title of host publicationPractical Holography XXXVII
Subtitle of host publicationDisplays, Materials, and Applications
EditorsPierre-Alexandre J. Blanche, Seung-Hyun Lee
ISBN (Electronic)9781510659957
StatePublished - 1 Jan 2023
EventPractical Holography XXXVII: Displays, Materials, and Applications 2023 - San Francisco, United States
Duration: 31 Jan 20231 Feb 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePractical Holography XXXVII: Displays, Materials, and Applications 2023
Country/TerritoryUnited States
CitySan Francisco


  • 3D imaging
  • coded aperture correlation holography
  • computational imaging
  • holography
  • incoherent optics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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