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Methods for improved autofocus in digital imaging systems

机译:改进数字成像系统中自动对焦的方法

摘要

Methods to improve autofocus in digital imaging systems, such as digital cameras, are disclosed. Embodiments may include, in response to locking of lens focus on a subject image, determining an initial subject focus distance and an initial attitude, and in response to a request for an exposure, determining a final attitude. Embodiments may also include determining a final target subject distance based on the initial subject focus distance and a focus correction distance, where the focus correction distance is based on the difference between the initial attitude and the final attitude. Embodiments may also include focusing the lens at the final target subject distance. Further embodiments may include after focusing the lens at the final target subject distance, exposing an image. Other embodiments may include determining the initial and final attitude with a micro-electro-mechanical (MEMS)-based sensor or other sensor.
机译:公开了改善数字成像系统(例如,数码相机)中的自动聚焦的方法。实施例可以包括:响应于镜头焦点锁定在对象图像上,确定初始对象聚焦距离和初始姿势,以及响应于曝光请求,确定最终姿势。实施例还可包括基于初始被摄体聚焦距离和聚焦校正距离来确定最终目标被摄体距离,其中,聚焦校正距离基于初始姿态和最终姿态之间的差。实施例还可包括将透镜聚焦在最终目标对象距离处。其他实施例可包括在将透镜聚焦在最终目标对象距离之后,曝光图像。其他实施例可以包括利用基于微机电(MEMS)的传感器或其他传感器来确定初始姿态和最终姿态。

著录项

  • 公开/公告号US7409149B2

    专利类型

  • 公开/公告日2008-08-05

    原文格式PDF

  • 申请/专利权人 ANTHONY C. SPIELBERG;

    申请/专利号US20050266668

  • 发明设计人 ANTHONY C. SPIELBERG;

    申请日2005-11-03

  • 分类号G03B17;

  • 国家 US

  • 入库时间 2022-08-21 20:09:47

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