Blur detection system

Details Blur detection system Blur detection system

2007-02-20

2007-02-20

Wu, Jingge (Department: 2624)

Image analysis

Image enhancement or restoration

Focus measuring or adjusting

C382S261000, C382S263000, C250S201200

Reexamination Certificate

active

10323112

ABSTRACT:
A system of estimating and reducing image blur in digital images stored in a digital file as a sequence of DCT coefficients arranged in a plurality of blocks. The disclosed system may preferably calculate one or more blur indicators from selected ones of the sequence of DCT coefficients and selectively filter a digital image based upon the calculated one or more blur indicators.

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Konnai et al. (“Method of Capturing Image of Object Passing through Focus Area,” Proc. SPIE vol. 4038, 2001, pp. 86-94).

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