Method and system for determining an indication of focus of...

Details Method and system for determining an indication of focus of... Method and system for determining an indication of focus of...

2005-01-07

2010-12-28

Johns, Andrew W (Department: 2624)

Image analysis

Image enhancement or restoration

Focus measuring or adjusting

Reexamination Certificate

active

07860332

ABSTRACT:
A method for determining an indication of how well-focused an image is. An image is divided into a plurality of blocks. At least one local measure is determined for at least one block of the plurality of blocks. At least one global figure-of-merit is determined for the image based on the local measure. An indication of focus is determined based on the global figure-of-merit.

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Loui, Alexander et al. “Automated Event Clustering and Quality Screening of Consumer Pictures for Digital Albuming”, IEEE Transactions on Multimedia vol. 5, No. 3, Sep. 2003, pp. 390-402.
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Lim et. al, “Automatic Focus Quality Analysis for Managing Large Collection”, Proceedings of SPIE Multimedia Systems and Applications VIII, vol. 6015, Oct. 23, 2005, pp. 1-8.

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