Image analysis – Image enhancement or restoration – Focus measuring or adjusting
Reexamination Certificate
2004-11-10
2009-12-29
Mehta, Bhavesh M (Department: 2624)
Image analysis
Image enhancement or restoration
Focus measuring or adjusting
C382S107000, C382S294000, C382S299000, C348S208990
Reexamination Certificate
active
07639888
ABSTRACT:
A digital image acquisition system includes a portable apparatus for capturing digital images and a digital processing component for detecting, analyzing, invoking subsequent image captures 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 initiates a subsequent capture if determined that the motion blur exceeds a certain threshold. In another embodiment the digital processing determines the degree of blur by analyzing the motion blur in the captured image itself, and initiates a subsequent capture if determined that the motion blur exceeds a certain threshold. Such real time analysis may use the auto focusing mechanism to qualitatively determine the PSF.
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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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