Title:
FOCUSING METHOD AND APPARATUS APPLIED TO TERMINAL DEVICE AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/073663
Kind Code:
A1
Abstract:
Disclosed are a focusing method and apparatus applied to a terminal device and the terminal device. The method comprises: when a target object is in a motion state, performing tracking focusing by using phase detection (PD) information having a variable filter length; when the target object is in a static state, performing stable focusing by using the PD information obtained in an adaptive fixed PD configuration mode. The technical solution provided in the embodiments of the present application is adopted, on the one hand, because a user does not need to manually select the target object, a user operation is simplified; on the other hand, when the target object is detected, adopting tracking focusing or stable focusing according to different motion states of the target object can achieve accurate focusing for the target object, thereby facilitating improving the definition of photographing a picture.
Inventors:
CHEN CONG (CN)
ZHOU CHENGTAO (CN)
WANG YONGYI (CN)
ISHIBASHI KENJI (CN)
ZHOU CHENGTAO (CN)
WANG YONGYI (CN)
ISHIBASHI KENJI (CN)
Application Number:
PCT/CN2019/088971
Publication Date:
April 16, 2020
Filing Date:
May 29, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G03B13/36; H04N5/232
Foreign References:
| US20130242173A1 | 2013-09-19 | |||
| CN108206914A | 2018-06-26 | |||
| CN103380392A | 2013-10-30 | |||
| US20150124153A1 | 2015-05-07 | |||
| US20180176452A1 | 2018-06-21 | |||
| US10044926B2 | 2018-08-07 | |||
| CN106464807A | 2017-02-22 | |||
| CN201811192309A | 2018-10-12 |
Other References:
CHAN, CHINCHENG ET AL.: "Enhancement of Phase Detection for Autofocus", IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP, 22 February 2018 (2018-02-22), pages 41 - 44, XP033322535, ISSN: 2381-8549
LEE, K. ET AL.: "Phase Difference Detection Pixel Restoration Using Adaptive Weighted Interpolation", 2016 IEEE REGION 10 CONFERENCE (TENCON, 9 February 2017 (2017-02-09), pages 3728 - 3730, XP033062916, ISSN: 2159-3450
LEE, K. ET AL.: "Phase Difference Detection Pixel Restoration Using Adaptive Weighted Interpolation", 2016 IEEE REGION 10 CONFERENCE (TENCON, 9 February 2017 (2017-02-09), pages 3728 - 3730, XP033062916, ISSN: 2159-3450
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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