Closed-loop wavefront correction for high-contrast imaging: The "peak-a-boo" algorithm

Amir Give'on, N. Jeremy Kasdin, Robert J. Vanderbei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


High contrast imaging from space must overcome photon noise of the diffracted star light and scattered light from optical components defects. The very high contrast required (up to 10 -10 for terrestrial planets) puts severe requirements on the wavefront control system, as the achievable contrast is limited by the quality of the wavefront. The "Peak-a-boo" correction algorithm, presented here, is a closed loop correction method for the shaped pupil coronagraph to minimize the energy in a pre-defined region in the image where terrestrial planets would be found. The reconstruction part uses three intensity measurements in the image plane with a pinhole added to the shaped pupil for diversity. This method has been shown in simulations to converge to the nominal contrast in 2-3 iterations. In addition, the "peak-a-boo" has shown to be effective in broadband conditions.

Original languageEnglish (US)
Title of host publicationAdvanced Wavefront Control
Subtitle of host publicationMethods, Devices, and Applications IV
StatePublished - 2006
EventAdvanced Wavefront Control: Methods, Devices, and Applications IV - San Diego, CA, United States
Duration: Aug 14 2006Aug 15 2006

Publication series

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


OtherAdvanced Wavefront Control: Methods, Devices, and Applications IV
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

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


  • Adaptive optics
  • High contrast imaging
  • Wavefront reconstruction


Dive into the research topics of 'Closed-loop wavefront correction for high-contrast imaging: The "peak-a-boo" algorithm'. Together they form a unique fingerprint.

Cite this