Perceptual image quality in normalized LOG domain for Adaptive Optics image post-processing

  • Shiping Guo
  • , Rongzhi Zhang
  • , Jisheng Li
  • , Jianhua Zou
  • , Changhai Liu
  • , Weizhe Gao

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

1 Scopus citations

Abstract

Adaptive Optics together with subsequent post-processing techniques obviously improve the resolution of turbulencedegraded images in ground-based space objects detection and identification. The most common method for frame selection and stopping iteration in post-processing has always been subjective viewing of the images due to a lack of widely agreed-upon objective quality metric. Full reference metrics are not applicable for assessing the field data, no-reference metrics tend to perform poor sensitivity for Adaptive Optics images. In the present work, based on the Laplacian of Gaussian (LOG) local contrast feature, a nonlinear normalization is applied to transform the input image into a normalized LOG domain; a quantitative index is then extracted in this domain to assess the perceptual image quality. Experiments show this no-reference quality index is highly consistent with the subjective evaluation of input images for different blur degree and different iteration number.

Original languageEnglish
Title of host publication2015 International Conference on Optical Instruments and Technology
Subtitle of host publicationOptoelectronic Imaging and Processing Technology, OIT 2015
EditorsGuangming Shi, Bormin Huang, Xuelong Li
PublisherSPIE
ISBN (Electronic)9781628418033
DOIs
StatePublished - 2015
Event2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2015 - Beijing, China
Duration: 17 May 201519 May 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9622
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, OIT 2015
Country/TerritoryChina
CityBeijing
Period17/05/1519/05/15

Keywords

  • Adaptive Optics
  • image quality assessment
  • imaging through turbulence
  • post-processing

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