All-in-focus photo image creation by wavelet transforms

Keiichiro Shirai, Kazufumi Nomura, Masaaki Ikehara

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this paper, we describe a method for creating all-in-focus photographic images where all of the subjects are in focus as much as possible from partially in-focus photographs with only its subject in focus when photographed by a camera with manual focus. Usually, the focusing range and the depth of field are wide, but become extremely narrow for nearby subjects. Consequently, it is difficult to photograph many subjects in focus in closeup photography. In this paper, we can combine the transform coefficients using wavelet transforms and easily create photographic images with natural focus but without noticeable seams.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalElectronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume90
Issue number3
DOIs
Publication statusPublished - 2007 Mar

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Wavelet transforms
Photography
Cameras

Keywords

  • Blur removal
  • Focus
  • Image synthesis
  • Wavelet transforms

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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AB - In this paper, we describe a method for creating all-in-focus photographic images where all of the subjects are in focus as much as possible from partially in-focus photographs with only its subject in focus when photographed by a camera with manual focus. Usually, the focusing range and the depth of field are wide, but become extremely narrow for nearby subjects. Consequently, it is difficult to photograph many subjects in focus in closeup photography. In this paper, we can combine the transform coefficients using wavelet transforms and easily create photographic images with natural focus but without noticeable seams.

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