Image analysis – Image enhancement or restoration – Focus measuring or adjusting
Reexamination Certificate
2004-11-10
2009-12-22
Mehta, Bhavesh M (Department: 2624)
Image analysis
Image enhancement or restoration
Focus measuring or adjusting
C382S107000, C382S294000, C382S299000, C348S208990
Reexamination Certificate
active
07636486
ABSTRACT:
A digital image acquisition system includes a portable apparatus for capturing digital images and a digital processing component for detecting, analyzing and informing the photographer regarding motion blur, and for reducing camera motion blur in an image captured by the apparatus. The digital processing component operates by comparing the image with at least one other image, for example a preview image, of nominally the same scene taken outside the exposure period of the main image. In one embodiment the digital processing component identifies at least one feature in a single preview image which is relatively less blurred than the corresponding feature in the main image, calculates a point spread function (PSF) in respect of such feature, and de-convolves the main image using the PSF. In another embodiment, the digital processing component calculates a trajectory of at least one feature in a plurality of preview images, extrapolates such feature on to the main image, calculates a PSF in respect of the feature, and de-convolves the main image using the PSF. In another embodiment the digital processing unit after determining the degree of blur notifies the photographer of the existing blur or automatically invokes consecutive captures.
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Corcoran Peter
Prilutsky Yury
Steinberg Eran
Bloom Nathan
FotoNation Ireland Ltd.
Mehta Bhavesh M
Smith Andrew V.
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