Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Region-Based Step-Response Extraction and PSF Estimation for Digital Auto-Focusing

영역기반 계단응답 추출 및 디지털자동초점을 위한 점확산함수 추정

  • Park, Young-Uk (Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University) ;
  • Kim, Dong-Gyun (Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University) ;
  • Lee, Jin-Hee (Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University) ;
  • Paik, Joon-Ki (Graduate School of Advanced Image Science, Multimedia, and Film, Chung-Ang University)
  • 박영욱 (중앙대학교 첨단영상대학원) ;
  • 김동균 (중앙대학교 첨단영상대학원) ;
  • 이진희 (중앙대학교 첨단영상대학원) ;
  • 백준기 (중앙대학교 첨단영상대학원)
  • Published : 2008.06.18
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Abstract

Blur identification is the first and the most important step of restoring images. Edge region of the image usually conveys important information of blur parameters. In this paper we propose a region-based edge extraction method for estimating point-spread-function (PSF). As a result, the proposed method can detect the starting and the ending points of a step response, and provides the PSF parameters to the restoration process.

Keywords