Auto-focus system for a digital imaging device and method
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United States of America Patent
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Dec 26, 2017
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app pub date -
Apr 27, 2016
filing date -
Dec 16, 2015
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Abstract
The present invention relates to an auto-focus system and method based on a sensor, using hierarchical extraction and motion estimation for an image. The auto-focus method may include the steps of: (a) extracting a phase difference image from a sensed image; (b) extracting a robust feature image which satisfies a preset reference with respect to noise and out-of-focus blur, from the phase difference image; and (C) estimating a motion vector for lens shift from the feature image.
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| KR | B1 | KR102477757 | Dec 16, 2015 |
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 26, 2025 |
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