Diffraction-limited depth-from-defocus

C Mair, Colin Goodman

Research output: Contribution to journalArticle

4 Citations (Scopus)


A depth-from-defocus reconstruction formula for a diffraction-limited imaging system is derived. The result shows that the commonly used reconstruction formula obtained from geometric optics does not hold for large sensor displacements. Moreover, it suggests that the unknown correction factor of the geometrical reconstruction formula equals 1/pi.
Original languageEnglish
Pages (from-to)2012-2013
Number of pages2
JournalElectronics Letters
Issue number24
Publication statusPublished - 1 Nov 2000


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