AUTOFOCUS METHOD, DEVICE AND ELECTRONIC APPARATUS

Title:

AUTOFOCUS METHOD, DEVICE AND ELECTRONIC APPARATUS

Document Type and Number:

WIPO Patent Application WO/2016/049889

Kind Code:

A1

Abstract:

Provided are an autofocus method, device and electronic apparatus. The method comprises: simultaneously acquiring a first image of a first object via a first photographing unit and acquiring a second image of the first object via a second photographing unit; calculating M first depth information of M pairs of a same feature point in corresponding regions of the first image and the second image; determining whether the confidence level of M first depth information is higher than a threshold; if so, obtaining focus depth information according to N first depth information of M first depth information; obtaining a target position of a first lens of the first photographing unit according to the focus depth information, and controlling the first lens to move to the target position.

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Inventors:

DU CHENG (CN)
WU JIN (CN)
LUO WEI (CN)
DENG BIN (CN)

Application Number:

PCT/CN2014/088003

Publication Date:

April 07, 2016

Filing Date:

September 30, 2014

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04N5/232; G03B13/36; G03B30/00

Foreign References:

CN103986876A	2014-08-13
CN101025546A	2007-08-29
CN101813867A	2010-08-25
CN103905709A	2014-07-02
US8284294B2	2012-10-09
US20080218612A1	2008-09-11

Other References: