Depth from focusing and defocusing
Top Cited Papers
- 30 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The problem of obtaining depth information from focusing and defocusing is studied. In depth from focusing, instead of the Fibonacci search, which is often trapped in local maxima, the combination of Fibonacci search and curve fitting is proposed. This combination leads to an unprecedentedly accurate result. A model of the blurring effect that takes geometric blurring as well as imaging blurring into consideration in the calibration of the blurring model is proposed. In spectrogram-based depth from defocusing, a maximal resemblance estimation method is proposed to decrease or eliminate the window effect.Keywords
This publication has 7 references indexed in Scilit:
- Parallel Depth Recovery By Changing Camera ParametersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Depth from focusing and defocusingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A matrix based method for determining depth from focusPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Shape from focus: an effective approach for rough surfacesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Discrete Fourier Transform Based Depth-from-FocusPublished by Optica Publishing Group ,1989
- FocusingInternational Journal of Computer Vision, 1988
- A New Sense for Depth of FieldPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1987